Home Bancorp (HBCP) 10-K 9 Mar 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Mar. 05, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-34190
Entity Registrant Name	HOME BANCORP, INC.
Entity Incorporation, State or Country Code	LA
Entity Tax Identification Number	71-1051785
Entity Address, Address Line One	503 Kaliste Saloom Road
Entity Address, City or Town	Lafayette
Entity Address, State or Province	LA
Entity Address, Postal Zip Code	70508
City Area Code	337
Local Phone Number	237-1960
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	HBCP
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business Company	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 211.7
Entity Common Stock, Shares Outstanding		8,705,834
Documents Incorporated by Reference	Set forth below are the documents incorporated by reference and the part of the Form 10-K into which the document is incorporated: Portions of the definitive Proxy Statement for the 2021 Annual Meeting of Shareholders are incorporated by reference into Part III, Items 10-14 of this Form 10-K.
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0001436425

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 187,952	$ 39,847
Interest-bearing deposits in banks	349	449
Investment securities available for sale, at fair value	254,752	257,321
Investment securities held to maturity (fair values of $2,996 and $7,194, respectively)	2,934	7,149
Mortgage loans held for sale	9,559	6,990
Loans, net of unearned income	1,979,954	1,714,361
Allowance for loan losses	(32,963)	(17,868)
Total loans, net of unearned income and allowance for loan losses	1,946,991	1,696,493
Office properties and equipment, net	45,497	46,425
Cash surrender value of bank-owned life insurance	40,334	39,466
Goodwill and core deposit intangibles	63,112	64,472
Accrued interest receivable and other assets	40,370	41,853
Total Assets	2,591,850	2,200,465
Deposits:
Noninterest-bearing	615,700	437,828
Interest-bearing	1,598,121	1,383,147
Total deposits	2,213,821	1,820,975
Other borrowings	5,539	5,539
Long-term Federal Home Loan Bank advances	28,824	40,620
Accrued interest payable and other liabilities	21,824	17,002
Total Liabilities	2,270,008	1,884,136
Shareholders’ Equity
Preferred stock, $0.01 par value - 10,000,000 shares authorized; none issued	0	0
Common stock, $0.01 par value - 40,000,000 shares authorized; 8,740,104 and 9,252,418 shares issued and outstanding, respectively	87	93
Additional paid-in capital	164,988	168,545
Unallocated common stock held by:
Employee Stock Ownership Plan (ESOP)	(2,767)	(3,124)
Recognition and Retention Plan (RRP)	(22)	(35)
Retained earnings	154,282	150,158
Accumulated other comprehensive income	5,274	692
Total Shareholders’ Equity	321,842	316,329
Total Liabilities and Shareholders’ Equity	$ 2,591,850	$ 2,200,465

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Investment securities held to maturity, fair value	$ 2,996	$ 7,194
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	10,000,000	10,000,000
Preferred stock, shares issued (shares)	0	0
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	40,000,000	40,000,000
Common stock, shares issued (shares)	8,740,104	9,252,418
Common stock, shares outstanding (shares)	8,740,104	9,252,418

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest Income
Loans, including fees	$ 99,106	$ 94,414	$ 94,303
Investment securities:
Taxable interest	4,228	5,886	5,948
Tax-exempt interest	335	507	708
Other investments and deposits	460	1,401	1,353
Total interest income	104,129	102,208	102,312
Interest Expense
Deposits	11,034	15,050	9,076
Other borrowings expense	212	213	46
Short-term Federal Home Loan Bank advances	23	0	40
Long-term Federal Home Loan Bank advances	649	949	1,144
Total interest expense	11,918	16,212	10,306
Net interest income	92,211	85,996	92,006
Provision for loan losses	12,728	3,014	3,943
Net interest income after provision for loan losses	79,483	82,982	88,063
Noninterest Income
Gain on sale of loans, net	2,925	1,074	872
Income from bank-owned life insurance	994	2,069	656
Loss on sale of assets, net	(11)	(335)	(52)
Other income	883	1,151	1,107
Total noninterest income	14,305	14,415	13,447
Noninterest Expense
Compensation and benefits	37,935	38,415	36,796
Occupancy	6,794	7,118	6,658
Marketing and advertising	1,132	1,576	1,309
Data processing and communication	7,343	6,611	7,646
Professional services	852	856	1,119
Forms, printing and supplies	625	683	973
Franchise and shares tax	1,487	1,444	1,030
Regulatory fees	1,377	830	1,559
Foreclosed assets, net	505	556	397
Amortization of acquisition intangible	1,360	1,583	1,845
Other expenses	3,571	3,933	3,893
Total noninterest expense	62,981	63,605	63,225
Income before income tax expense	30,807	33,792	38,285
Income tax expense	6,042	5,860	6,695
Net Income	$ 24,765	$ 27,932	$ 31,590
Earnings per share:
Basic (in usd per share)	$ 2.86	$ 3.08	$ 3.48
Diluted (in usd per share)	2.85	3.05	3.40
Cash dividends declared per common share (in usd per share)	$ 0.88	$ 0.84	$ 0.71
Service fees and charges
Noninterest Income
Fees and charges	$ 4,646	$ 5,940	$ 6,370
Bank card fees
Noninterest Income
Fees and charges	$ 4,868	$ 4,516	$ 4,494

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net Income	$ 24,765	$ 27,932	$ 31,590
Other Comprehensive Income (Loss)
Unrealized gains (losses) on available for sale investment securities	5,580	3,668	(1,323)
Unrealized gains on cash flow hedges	220	0	0
Tax effect	(1,218)	(770)	278
Other comprehensive income (loss), net of taxes	4,582	2,898	(1,045)
Comprehensive Income	$ 29,347	$ 30,830	$ 30,545

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax	Common Stock	Additional Paid-in Capital	Unallocated Common Stock Held by ESOP	Unallocated Common Stock Held by RRP	Retained Earnings	Retained EarningsCumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax	Accumulated Other Comprehensive (Loss) Income
Balance at Dec. 31, 2017	$ 277,871		$ 94	$ 165,341	$ (3,838)	$ (84)	$ 117,313		$ (955)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	31,590						31,590
Other comprehensive income (loss)	(1,045)								(1,045)
Reclassification of stranded tax effects in accumulated other comprehensive income							206		(206)
Purchase of Company's common stock at cost	(1,194)		0	(309)			(885)
Cash dividends declared	(6,706)						(6,706)
Common stock issued under incentive plans, net of shares surrendered in payment, including tax benefit	70			141			(71)
Exercise of stock options	914		1	913
RRP shares released for allocation	0			(26)		26
ESOP shares released for allocation	1,799			1,442	357
Share-based compensation cost	741			741
Balance at Dec. 31, 2018	304,040		95	168,243	(3,481)	(58)	141,447		(2,206)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	27,932						27,932
Other comprehensive income (loss)	2,898								2,898
Purchase of Company's common stock at cost	(15,445)		(4)	(4,191)			(11,250)
Cash dividends declared	(7,898)						(7,898)
Common stock issued under incentive plans, net of shares surrendered in payment, including tax benefit	157			230			(73)
Exercise of stock options	2,231		2	2,229
RRP shares released for allocation	0			(23)		23
ESOP shares released for allocation	1,613			1,256	357
Share-based compensation cost	801			801
Balance at Dec. 31, 2019	$ 316,329	$ (3,985)	93	168,545	(3,124)	(35)	150,158	$ (3,985)	692
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Net Income	$ 24,765						24,765
Other comprehensive income (loss)	4,582								4,582
Purchase of Company's common stock at cost	(14,013)		(6)	(5,299)			(8,708)
Cash dividends declared	(7,903)						(7,903)
Common stock issued under incentive plans, net of shares surrendered in payment, including tax benefit	(13)			32			(45)
Exercise of stock options	30		0	30
RRP shares released for allocation	0			(13)		13
ESOP shares released for allocation	1,261			904	357
Share-based compensation cost	789			789
Balance at Dec. 31, 2020	$ 321,842		$ 87	$ 164,988	$ (2,767)	$ (22)	$ 154,282		$ 5,274

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Purchase of Company's common shares at cost (shares)	530,504	419,498	30,887
Cash dividends declared, per share (in usd per share)	$ 0.88	$ 0.84	$ 0.71
Common Stock issued under incentive plans (shares)	16,485	24,987	17,691

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities, net of effects of acquisitions:
Net income	$ 24,765	$ 27,932	$ 31,590
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	12,728	3,014	3,943
Depreciation	3,063	2,875	2,504
Amortization and accretion of purchase accounting valuations and intangibles	5,479	5,880	8,288
Net amortization of mortgage servicing asset	161	111	151
Federal Home Loan Bank stock dividends	(61)	(156)	(125)
Net amortization of premium on investments	2,900	2,342	2,027
Gain on sale of loans, net	(2,925)	(1,074)	(872)
Proceeds, including principal payments, from loans held for sale	288,642	123,065	98,471
Originations of loans held for sale	(288,286)	(126,895)	(93,812)
Non-cash compensation	2,050	2,414	2,540
Deferred income tax (benefit) expense	(1,588)	137	2,137
(Increase) decrease in accrued interest receivable and other assets	(601)	58	(8,970)
Increase in cash surrender value of bank-owned life insurance	(948)	(874)	(656)
Increase (decrease) in accrued interest payable and other liabilities	3,651	5,109	(88)
Net cash provided by operating activities	49,030	43,938	47,128
Cash flows from investing activities, net of effects of acquisitions:
Purchases of securities available for sale	(91,978)	(68,523)	(78,462)
Proceeds from maturities, prepayments and calls on securities available for sale	97,311	72,865	50,280
Proceeds from maturities, prepayments and calls on securities held to maturity	4,130	3,517	1,855
Increase in loans, net	(271,830)	(73,680)	(2,177)
Reimbursement from FDIC for covered assets	0	142	26
Decrease in interest-bearing deposits in banks	100	490	1,482
Proceeds from sale of foreclosed assets	3,585	1,825	731
Purchases of office properties and equipment	(2,147)	(3,840)	(5,010)
Proceeds from sale of office properties and equipment	5	54	1,051
Purchase of bank-owned life insurance	0	(10,000)	0
Proceeds from bank-owned life insurance	126	2,163	0
Purchase of Federal Home Loan Bank stock	(1,592)	0	0
Proceeds from redemption of Federal Home Loan Bank stock	2,254	2,658	0
Investment in new market tax credit	0	0	5,539
Net cash used in investing activities	(260,036)	(72,329)	(24,685)
Cash flows from financing activities, net of effects of acquisitions:
Increase (decrease) in deposits, net	392,836	47,715	(93,106)
Borrowings on Federal Home Loan Bank advances	119,700	6,010	3,000
Repayments of Federal Home Loan Bank advances	(131,526)	(24,150)	(16,221)
Proceeds from exercise of stock options	30	2,231	914
Issuance of stock under incentive plans	(13)	157	70
Dividends paid to shareholders	(7,903)	(7,898)	(6,706)
Purchase of Company’s common stock	(14,013)	(15,445)	(1,194)
Net cash provided by (used in) financing activities	359,111	8,620	(113,243)
Net change in cash and cash equivalents	148,105	(19,771)	(90,800)
Cash and cash equivalents at beginning of year	39,847	59,618	150,418
Cash and cash equivalents at end of year	187,952	39,847	59,618
Supplementary cash flow information:
Interest paid on deposits and borrowed funds	11,933	16,072	10,391
Income taxes paid	5,430	3,174	5,075
Noncash investing and financing activities:
Acquisition of assets in settlement of loans	$ 915	$ 4,361	$ 1,816

Description of Business

Description of Business	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business Home Bancorp, Inc., a Louisiana corporation (the “Company”), is the parent holding company for Home Bank, N.A. (the "Bank"). The Bank is a national bank and wholly owned subsidiary of the Company. The Company and Bank are headquartered in Lafayette, Louisiana. As of December 31, 2020, the Company was a bank holding company. In September 2018, the Bank established HB Investment Fund I, LLC, a wholly-owned subsidiary of the Bank to invest in New Markets Tax Credits (“NMTC”) in our market area. In 2010, the Bank expanded into the Northshore (of Lake Pontchartrain) region through a Federal Deposit Insurance Corporation (“FDIC”) assisted acquisition of certain assets and liabilities of the former Statewide Bank. In July 2011, the Bank expanded into the Greater New Orleans region through its acquisition of GS Financial Corporation, the former holding company of Guaranty Savings Bank. In February 2014, the Bank expanded into west Mississippi through its acquisition of Britton & Koontz Capital Corporation, the holding company for Britton & Koontz Bank, N.A. of Natchez, Mississippi. In September 2015, the Bank expanded its presence in the Greater New Orleans region through the acquisition of Louisiana Bancorp, Inc., the former holding company of Bank of New Orleans of Metairie, Louisiana. In December 2019, the Bank expanded its presence in the Acadiana market through the acquisition of St. Martin Bancshares (“SMB”), the former holding company of St. Martin Bank & Trust Company of St. Martinville, Louisiana. As of December 31, 2020, the Bank conducted business from 40 banking offices in the Acadiana, Northshore, Baton Rouge and Greater New Orleans regions of south Louisiana and west Mississippi. The Bank is primarily engaged in attracting deposits from the general public and using those funds to invest in loans and investment securities. The Bank’s principal sources of funds are customer deposits, repayments of loans, repayments of investments and funds borrowed from outside sources such as the Federal Home Loan Bank (“FHLB”) of Dallas. The Bank derives its income principally from interest earned on loans and investment securities and, to a lesser extent, from fees received in connection with the origination of loans, service charges on deposit accounts and for other services. The Bank’s primary expenses are general operating expenses and interest expense on deposits and borrowings. The Company’s primary banking regulator is the Board of Governors of the Federal Reserve Systems (the”Federal Reserve”). The Bank’s primary regulator is the Office of the Comptroller of the Currency (“OCC”). Its deposits are insured to the maximum amount permissible under federal law by the FDIC.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Principles of Consolidation The consolidated financial statements include the accounts of the Company, the Bank and HB Investment Fund I, LLC. All significant intercompany balances and transactions have been eliminated in consolidation. Subsequent Events The Company has evaluated subsequent events for potential recognition and disclosure through the date of filing for this Annual Report on Form 10-K with the U.S. Securities and Exchange Commission. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term include, but are not limited to, the determination of the allowance for credit losses, income taxes, the valuation of foreclosed assets and ORE, goodwill and other intangible assets, acquisition accounting valuations and valuation of share-based compensation. Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash on hand, due from banks and interest-bearing deposits with the FHLB. The Company considers all highly liquid debt instruments with original maturities of three months or less (excluding interest-bearing deposits in banks) to be cash equivalents. The Bank may be required to maintain cash reserves with the Federal Reserve Bank. The requirement is dependent upon the Bank’s cash on hand or noninterest-bearing balances. There was no reserve requirement as of December 31, 2020 or 2019. Investment Securities The Company follows the guidance under the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 320, Investments – Debt and Equity Securities . This standard addresses the accounting and reporting for investments in equity securities that have readily determinable fair values and for all investments in debt securities. Under the topic, investment securities, which the Company both positively intends and has the ability to hold to maturity, are classified as held to maturity and carried at amortized cost. Investment securities that are acquired with the intention of being resold in the near term are classified as trading securities under ASC 320 and are carried at fair value, with unrealized holding gains and losses recognized in current earnings. The Company did not hold any securities for trading purposes at, or during the years ended, December 31, 2020 or 2019. Securities not meeting the criteria of either trading securities or held to maturity are classified as available for sale and are carried at fair value. Unrealized holding gains and losses for these securities are recognized, net of related income tax effects, in the Consolidated Statements of Comprehensive Income. Interest income earned on securities either held to maturity or available for sale is included in current earnings, including the amortization of premiums and the accretion of discounts using the interest method. Amortization of premiums and accretion of discounts are recognized in interest income using the effective interest method. Premiums that exceed the amount repayable by the issuer at the next call date are amortized to the next call date. Other premiums and discounts are amortized (accreted) over the estimated lives of the securities. The gain or loss realized on the sale of securities classified as available for sale or held to maturity, as determined using the specific identification method for determining the cost of the securities sold, is computed with reference to its amortized cost and is also included in current earnings. On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses, which introduced a new model known as CECL . ASC 326 requires expected credit related losses for available for sale debt securities to be recorded through an allowance for credit losses, while non-credit related losses or declines in fair value continue to be recognized through other comprehensive income ("OCI"). Under the new guidance, the Company is also required to evaluate held to maturity debt securities for expected credit losses. For more information on the impact to the Consolidated Financial Statements, refer to the " R ecent Accounting Pronouncements " section of this note. For reporting periods beginning on and after January 1, 2020 and the adoption of ASC 326: We evaluate our investment securities portfolio for credit-related impairment at least quarterly, and more frequently when economic and market conditions warrant such evaluations. Consideration is given to numerous factors including, but not limited to, the extent to which the fair value is less than the amortized cost basis; adverse conditions causing changes in the financial condition of the issuer of the security or underlying loan guarantors; changes to the rating of the security by a rating agency; and the Company’s intent to sell a security or whether it is more likely than not the Company will be required to sell the security before the recovery of its amortized cost, which may extend to maturity. The Company performs a process to determine whether declines in the fair value of securities has resulted from credit losses or other factors. This process involves evaluating each security for impairment by monitoring credit performance, collateral type, collateral geography, bond credit support, loan-to-value ratios, credit scores, loss severity levels, pricing levels, downgrades by rating agencies, cash flow projections and other factors as indicators of potential credit issues. If this evaluation indicates the existence of credit losses, the Company compares the present value of cash flows expected to be collected from the security with the amortized cost basis. If the present value of expected cash flows is less than the amortized cost basis, an allowance for credit losses is recorded, limited by the amount that the fair value of the security is less than its amortized cost. Subsequent changes in the allowance for credit losses on securities are recorded with a corresponding provision for credit losses on the Consolidated Statement of Income. If the Company intends to sell the debt security or it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis, the security is written down to fair value against the allowance for credit losses, with any additional impairment reported on the Consolidated Statement of Income. The Company applies the practical expedient that permits the exclusion of the accrued interest receivable balance from amortized cost basis of financing receivables. For reporting periods prior to January 1, 2020 and the adoption of ASC 326: The Company reviewed investment securities for other-than-temporary impairment quarterly. Impairment was considered to be other-than-temporary if it was likely that all amounts contractually due would not be received for debt securities and when there was no positive evidence indicating that an investment’s carrying amount was recoverable in the near term for equity securities. When a decline in the fair value of available for sale and held to maturity securities below cost was deemed to be credit related, a charge for other-than-temporary impairment was included in earnings as “Other-than-temporary impairment of securities”. The decline in fair value attributed to non-credit related factors was recognized in other comprehensive income and a new cost basis for the security was established. The new cost basis was not changed for subsequent recoveries in fair value. In evaluating whether impairment was temporary or other-than-temporary, the Company considered, among other things, the time period the security was in an unrealized loss position; the financial condition of the issuer and its industry; recommendations of investment advisors; economic forecasts; market or industry trends; changes in tax laws, regulations or other governmental policies significantly affecting the issuer; any downgrades from rating agencies; and any reduction or elimination of dividends. The Company’s intent and ability to hold a security for a period of time sufficient to allow for any anticipated recovery in fair value was also considered. Loans Held for Sale The Company sells mortgage loans and loan participations for an amount equal to the principal amount of loans or participations with yields to investors based upon current market rates. Realized gains and losses related to loan sales are included in noninterest income. The Company allocates the cost to acquire or originate a mortgage loan between the loan and the right to service the loan if it intends to sell or securitize the loan and retain servicing rights. In addition, the Company periodically assesses capitalized mortgage servicing rights for impairment based on the fair value of such rights. To the extent that temporary impairment exists, write-downs are recognized in current earnings as an adjustment to the corresponding valuation allowance. Permanent impairment is recognized through a write-down of the asset with a corresponding reduction in the valuation allowance. For purposes of performing its impairment evaluation, the portfolio is stratified on the basis of certain risk characteristics, including loan type and interest rates. Capitalized servicing rights are amortized over the period of, and in proportion to, estimated net servicing income, which considers appropriate prepayment assumptions. For financial reporting purposes, the Company classifies a portion of its loans as “Mortgage loans held for sale”. Included in this category are loans which the Company has the current intent to sell and loans which are available to be sold in the event that the Company determines that loans should be sold to support the Company’s investment and liquidity objectives, as well as to support its overall asset and liability management strategies. Loans included in this category for which the Company has the current intention to sell are recorded at the lower of aggregate cost or fair value. As of December 31, 2020 and 2019, the Company had $9,559,000 and $6,990,000, respectively, in loans classified as “Mortgage loans held for sale.” As of December 31, 2020 and 2019, the Company had $80,898,000 and $118,818,000, respectively, outstanding in loans sold to government agencies that it was servicing through a third party. Loans The following describes the distinction between originated and acquired loans and certain significant accounting policies relevant to each category. Originated Loans Originated loans are carried net of discounts on loan originations and are amortized using the level yield interest method over the remaining contractual life of the loan. Nonrefundable loan origination fees, net of direct loan origination costs, are deferred and recognized over the life of the loan as an adjustment of yield using the interest method. Interest on loans receivable is accrued as earned using the interest method over the life of the loan. Interest on loans deemed uncollectible is excluded from income. The accrual of interest is discontinued and reversed against current income, with certain limited exceptions, once loans become more than 90 days past due or earlier if conditions warrant. The past due status of loans is determined based on the contractual terms. When a loan is placed on nonaccrual status, previously accrued and uncollected interest is charged against interest income on loans. Interest payments are applied to reduce the principal balance on nonaccrual loans. Loans are returned to accrual status when all past due payments are received in full and future payments are probable. Third party property valuations are obtained at the time of origination for real estate secured loans. When a determination is made that a loan has deteriorated to the point of being deemed a criticized or classified loan, updated valuations may be ordered to help determine if there is impairment, which may lead to a recommendation for partial charge off or appropriate allowance allocation. Property valuations are ordered through, and reviewed by, the Company’s Appraisal and Review Department. The Company typically orders an “as is” valuation for collateral property if the loan is in a criticized loan classification. Loans, or portions of loans, are charged off in the period that such loans, or portions thereof, are deemed uncollectible. The collectability of individual loans is determined through an estimate of the fair value of the underlying collateral and/or assessment of the financial condition and repayment capacity of the borrower. Acquired Loans Acquired loans at December 31, 2020 and 2019 are those associated with our acquisitions of Statewide Bank, GS Financial Corporation, Britton & Koontz Capital Corporation, Louisiana Bancorp, Inc. and SMB. These loans were recorded at estimated fair value at the acquisition date with no carryover of the related allowance for loan losses. The acquired loans were segregated between those considered to be performing and those with evidence of credit deterioration (purchased credit impaired or “PCI”), and then further segregated into loan pools designed to facilitate the development of expected cash flows. The fair value estimate for each pool of acquired performing and PCI loans was based on the estimate of expected cash flows, both principal and interest, from that pool, discounted at prevailing market interest rates. The difference between the fair value of an acquired loan pool and the contractual amounts due at the acquisition date (the “fair value discount”) is accreted into income over the estimated life of the pool. On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses, which introduced a new model known as CECL and amended the accounting guidance for purchased financial assets. For more information on the impact to the Consolidated Financial Statements, refer to the " Recent Accounting Pronouncements " section of this note. For reporting periods beginning on and after January 1, 2020 and the adoption of ASC 326: Management estimates the allowance for credit losses for acquired loans under the same methodology as originated loans. Changes in the allowance for credit losses for acquired loans are recognized through the provision for loan losses and the provision for credit losses on unfunded lending commitments. ASC 326 replaced the guidance for PCI loans with the concept of purchased credit deteriorated ("PCD"). For reporting periods beginning on and after January 1, 2020, PCI loans have been re-classified as PCD loans. For PCD loans, the Company applied the guidance under ASC 326 using the prospective transition approach. As a result, the Company adjusted the amortized cost basis of the PCD loans to reclassify $1.0 million of purchase discount to the allowance for loan losses on January 1, 2020. The Company applied the guidance under ASC 326 using the modified retrospective approach for all non-PCD assets, which resulted in an increase in the ACL and a corresponding decrease to retained earnings at the adoption date. PCD loans, under prior accounting policies, were excluded from nonperforming loans because they continued to earn interest income from the accretable yield at the pool level regardless of their status as past due or otherwise not in compliance with their contractual terms. With the adoption of ASC 326, the pools were discontinued and performance is based on contractual terms for individual loans. For reporting periods prior to January 1, 2020 and the adoption of ASC 326: Management estimated the ALL for acquired performing or non-PCI loans using a methodology similar to that used for originated loans. The allowance determined for each loan pool was compared to the remaining fair value discount for that pool. If the allowance amount calculated under the Company’s methodology was greater than the Company’s remaining discount, the additional amount called for was added to the reported allowance through a provision for loan losses. If the allowance amount calculated under the Company’s methodology was less than the Company’s recorded discount, no additional allowance or provision was recognized. Actual losses first reduced any remaining nonaccretable discount for the loan pool. Once the nonaccretable discount was fully depleted, losses were applied against the allowance established for that pool. Acquired performing or non-PCI loans were placed on nonaccrual status and were considered and reported as nonperforming or past due using the same criteria applied to the originated portfolio. The excess of cash flows expected to be collected from a PCI loan pool over the pool’s estimated fair value at acquisition was referred to as the accretable yield and was recognized in interest income using an effective yield method over the remaining life of the pool. Each pool of PCI loans was accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. Management estimated cash flows expected to be collected on each PCI loan pool periodically. If the present value of expected cash flows for a pool was less than its carrying value, an impairment was recognized by an increase in the ALL and a charge to the provision for loan losses. If the present value of expected cash flows for a pool was greater than its carrying value, any previously established ALL was reversed and any remaining difference increased the accretable yield, which was taken into interest income over the remaining life of the loan pool. PCI loans were generally not subject to individual evaluation for impairment and were not reported with impaired loans, even if they otherwise qualified for such treatment . Allowance for Credit Losses On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses . The new standard significantly changed the impairment model for most financial assets that are measured at amortized cost, including off-balance sheet credit exposures, from an incurred loss model to an expected loss model. Refer to the " Recent Accounting Pronouncements " section of this note for more information on the impact to the Consolidated Financial Statements. For all reporting periods: Changes in the allowance for credit losses, which includes the allowance for loan losses and the reserve for unfunded lending commitments, are charged to current operations. Loans that are determined to be uncollectible are charged-off against the allowance for credit losses once that determination is made. While management uses available information to make allowance evaluations, adjustments to the allowance may be necessary based on changes in economic and other conditions or changes in accounting guidance. The OCC, as an integral part of its examination processes, periodically reviews the allowance for credit losses. The OCC may require the recognition of adjustments to the allowance for credit losses based on its judgment of information available to it as of the time of its examinations. To the extent the OCC’s estimates differ from management’s estimates, additional provisions to the allowance for credit losses may be required as of the time of its examination. As part of the Bank’s risk management program, an independent review is performed on the loan portfolio, which supplements management’s assessment of the loan portfolio and the allowance for credit losses. The result of the independent review is reported directly to the Audit Committee of the Board of Directors. For reporting periods beginning on and after January 1, 2020 and the adoption of ASC 326: Under ASC 326, the allowance for credit losses ("ACL") is measured on a pool basis when similar risk characteristics exist and is maintained at an amount which management believes is a current estimate of the expected credit losses for the full life of the relevant pool of loans and related unfunded lending commitments. The Company applies the practical expedient that permits the exclusion of the accrued interest receivable balance from amortized cost basis of financing receivables when measuring credit losses under CECL. The Company's CECL calculation estimates loan losses using the discounted cash flow method for all loan pools, except for the Company's credit card portfolio. Loan losses for the credit card portfolio are estimated using the remaining life method due to the limited complexity and size of this portfolio. The discounted cash flow analysis uses loan-level term information (e.g., maturity date, payment amount, interest rate, etc.) and pool-level assumptions (e.g., default rates, prepayment speeds, etc.) to produce expected future cash flows for the full life of every loan in the pool. The expected future cash flows are discounted and results are then aggregated to produce a net present value of the pool and ultimately the ACL requirement for the pool. The remaining life method applies a loss rate to a given pool of loans over the estimated remaining life of the given pool. The remaining life of the pool is based on historical data. The loss rates computed for each pool and expected pool-level funding rates are applied to the related unfunded lending commitments to calculate an ACL on unfunded amounts. For each pool of loans, management also evaluates and applies qualitative adjustments to the calculated ACL based on several factors, including, but not limited to, changes in current and expected future economic conditions, changes in industry experience and loan concentrations, changes in the volume and severity of nonperforming assets, changes in lending policies and personnel and changes in the competitive and regulatory environment of the banking industry. During 2020, the ongoing effects of COVID-19 on the U.S. economy has been an additional consideration when measuring the ACL. Loans that do not share similar risk characteristics are individually evaluated and are excluded from the pooled loan analysis. Individually analyzed loans generally include larger (i.e., loans with balances of $250,000 or greater) commercial real estate loans, multi-family residential loans, construction and land loans, commercial and industrial loans and other loans as deemed appropriate by management for which it is probable that all amounts due under the contractual terms of the loan will not be collected. The ACL for loans that are individually evaluated is based on a comparison of the recorded investment in the loan with either the expected cash flows discounted using the loan’s original effective interest rate, observable market price for the loan or the fair value of the collateral underlying certain collateral-dependent loans. The Company has identified the following portfolio segments based on the risk characteristics described in the table for its pooled loan analysis under ASC 326: Loan Pool Risk Characteristics One- to four-family first mortgage This category consists of loans secured by first liens on residential real estate. The performance of these loans may be adversely affected by, among other factors, unemployment rates, local residential real estate market conditions and the interest rate environment. Generally, these loans are for longer terms than home equity loans and lines. Home equity loans and lines This category consists of loans secured by first and junior liens on residential real estate. The performance of these loans may be adversely affected by, among other factors, unemployment rates, local residential real estate market conditions and the interest rate environment. Commercial real estate ("CRE") This category consists of loans primarily secured by office and industrial buildings, warehouses, retail shopping facilities and various special purpose properties, including hotels and restaurants. The performance of CRE loans may be adversely affected by, among other factors, conditions specific to the relevant industry, the real estate market for the property type and geographic region where the property or borrower is located. Construction and land ("C&D") This category consists of loans to finance the ground-up construction and/or improvement of residential and commercial properties and loans secured by land. The performance of C&D loans is generally dependent upon the successful completion of improvements and/or land development for the end user, the sale of the property to a third party, or a secondary source of cash flow from the owners. The successful completion of planned improvements and development may be adversely affected by changes in the estimated property value upon completion of construction, projected costs and other conditions leading to project delays. Multi-family residential This category consists of loans secured by apartment or residential buildings with five or more units used to accommodate households on a temporary or permanent basis. The performance of multi-family loans is generally dependent on the receipt of rental income from the tenants who occupy the subject property. The occupancy rate of the subject property and the ability of the tenants to pay rent may be adversely affected by the location of the subject property and local economic conditions. Commercial and industrial ("C&I") This category consists of secured and unsecured loans to purchase capital equipment, agriculture operating loans and other business loans for working capital and operating purposes. Secured loans are primarily secured by accounts receivable, inventory and other business assets. The performance of C&I loans may be adversely affected by, among other factors, conditions specific to the relevant industry, fluctuations in the value of the collateral and individual performance factors related to the borrower. Consumer This category consists of loans to individuals for household, family and other personal use. The performance of these loans may be adversely affected by national and local economic conditions, unemployment rates and other factors affecting the borrower's income available to service the debt. Credit cards This category consists of unsecured revolving lines of credit for personal and commercial use. Credit card loans are generally smaller in size and are less complex relative to larger loan categories. Due to their unsecured nature, historical loss rates for credit card loans are generally higher than the loss rates on loans secured by real estate. For reporting periods prior to January 1, 2020 and the adoption of ASC 326: The allowance for loan losses was maintained at an amount which management believed covered the reasonably estimable and probable losses on such portfolio. The allowance for loan losses was comprised of specific and general reserves. The Company determined specific reserves based on the provisions of ASC 310, Receivables . The Company’s allowance for loan losses included a measure of impairment related to those loans specifically identified for evaluation under the topic. This measurement was based on a comparison of the recorded investment in the loan with either the expected cash flows discounted using the loan’s original effective interest rate, observable market price for the loan or the fair value of the collateral underlying certain collateral-dependent loans. General reserves were based on management’s evaluation of many factors, including current economic trends, industry experience, historical loss experience (generally three years), industry loan concentrations, the borrowers’ abilities to repay and repayment performance, probability of foreclosure and estimated collateral values. In addition to these factors, management also considered the risk factors described in the table above for each segment of the loan portfolio when determining general reserves. Office Properties and Equipment Office properties and equipment are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method with rates based on the estimated useful lives of the individual assets, which range from three On January 1, 2019, the Company adopted the amended provisions under ASC 842, Leases. Under the amended guidance, the Company recognizes lease assets and liabilities for both operating and capital leases. For lessees, lease assets represent the right to use leased assets for the relevant lease term and lease liabilities that represent the obligation to make lease payments. At December 31, 2020 and 2019, the Company's right-of-use assets, net of amortization, were $4,566,000 and $4,544,000, respectively. The Company's lease liabilities were $4,695,000 and $4,588,000 at December 31, 2020 and 2019, respectively. The Company reports its right-of-use assets and liabilities within accrued interest receivable and other assets and accrued interest payable and other liabilities on the Consolidated Statements of Financial Condition. Cash Surrender Value of Bank-Owned Life Insurance Life insurance contracts represent single premium life insurance contracts on the lives of certain officers of the Bank. The Bank is the beneficiary of these policies. These contracts are reported at their cash surrender value and changes in the cash surrender value are included in noninterest income. Intangible Assets Intangible assets consist of goodwill, core deposit intangibles and mortgage servicing rights. Goodwill and core deposit intangibles are presented together on the Consolidated Statements of Financial Condition. Mortgage servicing rights are recorded in accrued interest receivable and other assets on the Consolidated Statements of Financial Condition. Goodwill represents the excess purchase price over the fair value of net assets acquired in business acquisitions. Goodwill is not amortized but rather is evaluated for impairment at least annually. Core deposit intangibles represent the estimated value related to customer deposit relationships assumed in the Company’s acquisitions. Core deposit intangibles are being amortized over nine Foreclosed Assets and ORE Foreclosed assets and ORE includes real property and other assets that have been acquired as a result of foreclosure, and real property no longer used in the Bank's business. Foreclosed assets are recorded at fair value less estimated selling costs at the date acquired or upon receiving new property valuations. Write-downs from cost to fair value at the date of foreclosure are charged against the allowance for credit losses. ORE is recorded at the lower of its net book value or fair value at the date of transfer to ORE. Costs relating to the development and improvement of foreclosed assets and ORE are capitalized, and costs relating to holding and maintaining foreclosed assets and ORE are expensed. Valuations are performed periodically and a charge to operations is recorded if the carrying value of a property exceeds its fair value less selling costs. Generally, the Company appraises foreclosed assets and ORE at the time of foreclosure or transfer to ORE and at least every 12 months following the foreclosure or transfer to ORE. When the foreclosed property is sold, a gain or loss is recognized on the sale for the difference between the sales proceeds and the carrying amount of the property. Financed sales of foreclosed property are accounted for in accordance with ASC 610, Subtopic 20, Gains and losses from the derecognition of nonfinancial assets. The Company had $1,302,000 and $4,156,000 of foreclosed assets and ORE as of December 31, 2020 and 2019, respectively. Foreclosed assets and ORE are recorded in accrued interest receivable and other assets on the Consolidated Statements of Financial Condition. Derivatives and Hedging Activities As required by ASC 815, the Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value o

Acquisition Activity

Acquisition Activity	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Acquisition Activity	Acquisition Activity SUMMARY OF ACQUISITION ACTIVITY (dollars in thousands) Acquisition Acquisition Date Total Assets Total Loans Goodwill Core Deposit Intangible Total Deposits Statewide Bank 3/12/2010 $ 188,026 $ 110,415 $ 560 $ 1,429 $ 206,925 GS Financial Corporation 7/15/2011 256,677 182,440 296 859 193,518 Britton & Koontz Capital Corporation 2/14/2014 298,930 161,581 43 3,030 216,600 Louisiana Bancorp, Inc. 9/15/2015 352,897 281,583 8,454 1,586 208,670 St. Martin Bancshares, Inc. 12/6/2017 592,852 439,872 49,135 6,766 533,497 Total Acquisitions $ 1,689,382 $ 1,175,891 $ 58,488 $ 13,670 $ 1,359,210 Loans acquired with deteriorated credit quality were accounted for under ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality, prior to the adoption of ASC 326. On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses, which amended the accounting model for purchased financial assets and replaced the guidance for PCI financial assets with the concept of PCD financial assets.

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The following table summarizes the Company’s available for sale and held to maturity investment securities at December 31, 2020 and 2019. (dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value December 31, 2020 Less Than Over 1 Available for sale: U.S. agency mortgage-backed $ 138,669 $ 4,162 $ 19 $ — $ 142,812 Collateralized mortgage obligations 74,112 1,565 55 2 75,620 Municipal bonds 27,306 717 12 — 28,011 U.S. government agency 6,210 55 — 10 6,255 Corporate bonds 2,000 54 — — 2,054 Total available for sale $ 248,297 $ 6,553 $ 86 $ 12 $ 254,752 Held to maturity: Municipal bonds $ 2,934 $ 62 $ — $ — $ 2,996 Total held to maturity $ 2,934 $ 62 $ — $ — $ 2,996 (dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value December 31, 2019 Less Than Over 1 Available for sale: U.S. agency mortgage-backed $ 94,446 $ 1,081 $ 292 $ 63 $ 95,172 Collateralized mortgage obligations 142,408 701 300 358 142,451 Municipal bonds 15,895 166 56 — 16,005 U.S. government agency 3,696 11 4 10 3,693 Total available for sale $ 256,445 $ 1,959 $ 652 $ 431 $ 257,321 Held to maturity: Municipal bonds $ 7,149 $ 45 $ — $ — $ 7,194 Total held to maturity $ 7,149 $ 45 $ — $ — $ 7,194 Management evaluates securities for impairment from credit losses at least quarterly, and more frequently when economic and market conditions warrant such evaluations. Consideration is given to numerous factors including, but not limited to, the extent to which the fair value is less than the amortized cost basis; adverse conditions causing changes in the financial condition of the issuer of the security or underlying loan guarantors; changes to the rating of the security by a rating agency; and the Company’s intent to sell a security or whether it is more likely than not the Company will be required to sell the security before the recovery of its amortized cost, which may extend to maturity. The Company performs a process to determine whether the decline in the fair value of securities has resulted from credit losses or other factors. This process involves evaluating each security for impairment by monitoring credit performance, collateral type, collateral geography, bond credit support, loan-to-value ratios, credit scores, loss severity levels, pricing levels, downgrades by rating agencies, cash flow projections and other factors as indicators of potential credit issues. If this evaluation indicates the existence of credit losses, the Company compares the present value of cash flows expected to be collected from the security with the amortized cost basis. If the present value of expected cash flows is less than the amortized cost basis, an ACL is recorded, limited by the amount that the fair value of the security is less than its amortized cost. The Company's investment securities with unrealized losses, aggregated by type and length of time that individual securities have been in a continuous loss position, are summarized in the following tables. (dollars in thousands) Less Than 1 Year Over 1 Year Total December 31, 2020 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale: U.S. agency mortgage-backed $ 13,666 $ 19 $ — $ — $ 13,666 $ 19 Collateralized mortgage obligations 13,615 55 2,309 2 15,924 57 Municipal bonds 1,278 12 — — 1,278 12 U.S. government agency — — 1,196 10 1,196 10 Corporate bonds — — — — — — Total available for sale $ 28,559 $ 86 $ 3,505 $ 12 $ 32,064 $ 98 Held to maturity: Municipal bonds $ — $ — $ — $ — $ — $ — Total held to maturity $ — $ — $ — $ — $ — $ — (dollars in thousands) Less Than 1 Year Over 1 Year Total December 31, 2019 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale: U.S. agency mortgage-backed $ 28,847 $ 292 $ 5,148 $ 63 $ 33,995 $ 355 Collateralized mortgage obligations 50,004 300 37,131 358 87,135 658 Municipal bonds 3,044 56 — — 3,044 56 U.S. government agency 1,213 4 466 10 1,679 14 Total available for sale $ 83,108 $ 652 $ 42,745 $ 431 $ 125,853 $ 1,083 Held to maturity: Municipal bonds $ — $ — $ — $ — $ — $ — Total held to maturity $ — $ — $ — $ — $ — $ — At December 31, 2020, 33 of the Company’s debt securities had unrealized losses totaling 0.3% of the individual securities’ amortized cost basis and 0.04% of the Company’s total amortized cost basis of the investment securities portfolio. At such date, three of the 33 securities had been in a continuous loss position for over 12 months. Management has determined that the declines in the fair value of these securities were not attributable to credit losses. As a result, no ACL was recorded for available for sale investment securities at December 31, 2020. At December 31, 2020, it was determined that no ACL was required for the Company's held to maturity investment securities. The Company monitors credit quality of debt securities held to maturity through the use of credit ratings. The following table presents the amortized cost of the Company's held to maturity securities by credit quality rating at December 31, 2020. Credit Ratings (dollars in thousands) AAA/AA/A BBB/BB/B Total December 31, 2020 Held to maturity: Municipal bonds 2,934 — 2,934 The amortized cost and estimated fair value by maturity of the Company’s investment securities as of December 31, 2020 are shown in the following tables. Securities are classified according to their contractual maturities without consideration of principal amortization, potential prepayments or call options. The expected maturity of a security may differ from its contractual maturity because of the exercise of call options and potential paydowns. Accordingly, actual maturities may differ from contractual maturities. (dollars in thousands) One Year or Less After One Year through Five Years After Five Years through Ten Years After Ten Years Total Fair Value Available for sale: U.S. agency mortgage-backed $ 3,239 $ 13,335 $ 48,561 $ 77,677 $ 142,812 Collateralized mortgage obligations — 19,689 19,987 35,944 75,620 Municipal bonds 1,321 2,740 8,305 15,645 28,011 U.S. government agency — — 5,837 418 6,255 Corporate bonds — — 2,054 — 2,054 Total securities available for sale $ 4,560 $ 35,764 $ 84,744 $ 129,684 $ 254,752 Held to maturity: Municipal bonds $ — $ 802 $ 2,194 $ — $ 2,996 Total securities held to maturity $ — $ 802 $ 2,194 $ — $ 2,996 (dollars in thousands) One Year or Less After One Year through Five Years After Five Years through Ten Years After Ten Years Total Amortized Cost Available for sale: U.S. agency mortgage-backed $ 3,204 $ 12,868 $ 46,137 $ 76,460 $ 138,669 Collateralized mortgage obligations — 18,902 19,481 35,729 74,112 Municipal bonds 1,317 2,716 7,906 15,367 27,306 U.S. government agency — — 5,786 424 6,210 Corporate bonds — — 2,000 — 2,000 Total securities available for sale $ 4,521 $ 34,486 $ 81,310 $ 127,980 $ 248,297 Held to maturity: Municipal bonds $ — $ 800 $ 2,134 $ — $ 2,934 Total securities held to maturity $ — $ 800 $ 2,134 $ — $ 2,934 For the years ended December 31, 2020, 2019 and 2018, the Company recorded no gross gains or losses related to the sale of investment securities. As of December 31, 2020 and 2019, the Company had accrued interest receivable for investment securities of $744,000 and $894,000, respectively. These amounts are recorded in accrued interest receivable and other assets on the Consolidated Statements of Financial Condition. As of December 31, 2020 and 2019, the Company had $125,889,000 and $157,091,000, respectively, of securities pledged to secure public deposits.

Loans

Loans	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Loans	Loans The Company’s loans, net of unearned income, consisted of the following as of December 31 of the years indicated. (dollars in thousands) 2020 2019 Real estate loans: One- to four-family first mortgage $ 395,638 $ 430,820 Home equity loans and lines 67,700 79,812 Commercial real estate 750,623 722,807 Construction and land 221,823 195,748 Multi-family residential 87,332 54,869 Total real estate loans 1,523,116 1,484,056 Other loans: Commercial and industrial 417,926 184,701 Consumer 38,912 45,604 Total other loans 456,838 230,305 Total loans $ 1,979,954 $ 1,714,361 The net discount on the Company’s acquired loans was $6,650,000 and $12,315,000 at December 31, 2020, and 2019, respectively. In addition, loan balances as of December 31, 2020 and 2019 are reported net of unearned income of $8,727,000 and $3,114,000, respectively. Unearned income at December 31, 2020 included $5,449,000 of deferred lender fees related to PPP loans. The total recorded investment in PPP loans was $221,220,000 at December 31, 2020, which is included in commercial and industrial loans. Accrued interest receivable on the Company's loans was $8,635,000 and $6,575,000 at December 31, 2020 and 2019, respectively, and is excluded from the estimate of the ACL. These amounts are recorded in accrued interest receivable and other assets on the Consolidated Statements of Financial Condition. A summary of activity in the ACL and ALL for the years ended December 31, 2020, 2019 and 2018 follows. For the Year Ended December 31, 2020 (dollars in thousands) Beginning Balance ASC 326 Adoption Impact (1) Charge-offs Recoveries Provision Ending Balance Allowance for credit losses: One- to four-family first mortgage $ 2,715 $ 986 $ (99) $ 13 $ (550) $ 3,065 Home equity loans and lines 1,084 (1) (575) 16 152 676 Commercial real estate 6,541 1,974 (5) 55 10,286 18,851 Construction and land 2,670 519 (688) — 1,654 4,155 Multi-family residential 572 (245) — — 750 1,077 Commercial and industrial 3,694 1,243 (984) 106 217 4,276 Consumer 592 157 (250) 145 219 863 Total allowance for loan losses $ 17,868 $ 4,633 $ (2,601) $ 335 $ 12,728 $ 32,963 Unfunded lending commitments — 1,425 — — — 1,425 Total allowance for credit losses $ 17,868 $ 6,058 $ (2,601) $ 335 $ 12,728 $ 34,388 (1) On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses , which introduced a new model know as CECL. Refer to Note 2 for more information on the adoption of ASC 326. For the Year Ended December 31, 2019 (dollars in thousands) Beginning Balance Charge-offs Recoveries Provision Ending Balance Allowance for loan losses: One- to four-family first mortgage $ 2,136 $ (4) $ — $ 583 $ 2,715 Home equity loans and lines 1,079 (42) 16 31 1,084 Commercial real estate 6,125 (360) — 776 6,541 Construction and land 2,285 (6) — 391 2,670 Multi-family residential 550 — — 22 572 Commercial and industrial 3,228 (893) 25 1,334 3,694 Consumer 945 (272) 42 (123) 592 Total allowance for loan losses $ 16,348 $ (1,577) $ 83 $ 3,014 $ 17,868 For the Year Ended December 31, 2018 (dollars in thousands) Beginning Balance Charge-offs Recoveries Provision Ending Balance Allowance for loan losses: One- to four-family first mortgage $ 1,663 $ (1) $ — $ 474 $ 2,136 Home equity loans and lines 1,102 — 5 (28) 1,079 Commercial real estate 4,906 — — 1,219 6,125 Construction and land 1,749 — — 536 2,285 Multi-family residential 355 — — 195 550 Commercial and industrial 4,530 (2,506) 158 1,046 3,228 Consumer 502 (74) 16 501 945 Total allowance for loan losses $ 14,807 $ (2,581) $ 179 $ 3,943 $ 16,348 The ACL, which includes the ALL and the ACL on unfunded lending commitments, and recorded investment in loans as of the dates indicated are as follows. As of December 31, 2020 (dollars in thousands) Collectively Evaluated Individually Evaluated Total Allowance for credit losses: One- to four-family first mortgage $ 2,965 $ 100 $ 3,065 Home equity loans and lines 676 — 676 Commercial real estate 17,843 1,008 18,851 Construction and land 4,155 — 4,155 Multi-family residential 1,077 — 1,077 Commercial and industrial 3,845 431 4,276 Consumer 863 — 863 Total allowance for loan losses $ 31,424 $ 1,539 $ 32,963 Unfunded lending commitments (1) $ 1,425 $ — $ 1,425 Total allowance for credit losses $ 32,849 $ 1,539 $ 34,388 As of December 31, 2020 (dollars in thousands) Collectively Evaluated Individually Evaluated (2) Total Loans: One- to four-family first mortgage $ 394,632 $ 1,006 $ 395,638 Home equity loans and lines 67,700 — 67,700 Commercial real estate 743,223 7,400 750,623 Construction and land 221,823 — 221,823 Multi-family residential 87,332 — 87,332 Commercial and industrial 417,320 606 417,926 Consumer 38,912 — 38,912 Total loans $ 1,970,942 $ 9,012 $ 1,979,954 As of December 31, 2019 (dollars in thousands) Collectively Evaluated for Impairment Individually Evaluated for Impairment Acquired with Deteriorated Credit Quality Total Allowance for loan losses: One- to four-family first mortgage $ 2,715 $ — $ — $ 2,715 Home equity loans and lines 736 348 — 1,084 Commercial real estate 6,243 298 — 6,541 Construction and land 2,670 — — 2,670 Multi-family residential 572 — — 572 Commercial and industrial 2,969 701 24 3,694 Consumer 592 — 592 Total allowance for loan losses $ 16,497 $ 1,347 $ 24 $ 17,868 As of December 31, 2019 (dollars in thousands) Collectively Evaluated for Impairment Individually Evaluated for Impairment Acquired with Deteriorated Credit Quality (3) Total Loans: One- to four-family first mortgage $ 429,745 $ 187 $ 888 $ 430,820 Home equity loans and lines 78,446 784 582 79,812 Commercial real estate 711,282 6,518 5,007 722,807 Construction and land 195,374 — 374 195,748 Multi-family residential 54,690 — 179 54,869 Commercial and industrial 183,141 1,223 337 184,701 Consumer 45,573 — 31 45,604 Total loans $ 1,698,251 $ 8,712 $ 7,398 $ 1,714,361 (1) At December 31, 2020, $1.4 million of the ACL related to unfunded lending commitments of $336.9 million. The ACL on unfunded lending commitments is recorded within accrued interest payable and other liabilities on the Consolidated Statements of Financial Condition. (2) At December 31, 2020, loans individually evaluated for impairment included $277,000 of loans acquired with deteriorated credit quality. (3) At December 31, 2019, loans acquired with deteriorated credit quality were deemed to be PCI and were accounted for under ASC 310-30. Although the Company has a diversified loan portfolio, a substantial portion of the loan portfolio is collateralized by improved and unimproved real estate and is dependent, in part, on values in the real estate market. The following table presents the Company’s loan portfolio by credit quality classification and origination year as of December 31, 2020. Term Loans by Origination Year (dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Loans Total One- to four-family first mortgage: Pass $ 58,958 $ 65,070 $ 46,412 $ 48,851 $ 37,039 $ 114,588 $ 17,762 $ 1,457 $ 390,137 Special Mention — — 167 16 — 1,057 — — 1,240 Substandard 129 34 — 335 1,069 2,694 — — 4,261 Doubtful — — — — — — — — — Total one- to four-family first mortgages $ 59,087 $ 65,104 $ 46,579 $ 49,202 $ 38,108 $ 118,339 $ 17,762 $ 1,457 $ 395,638 Home equity loans and lines: Pass $ 1,172 $ 1,307 $ 2,028 $ 964 $ 1,889 $ 5,537 $ 53,309 $ 1,389 $ 67,595 Special Mention — — — 43 — — — — 43 Substandard — — — — — 58 4 — 62 Doubtful — — — — — — — — — Total home equity loans and lines $ 1,172 $ 1,307 $ 2,028 $ 1,007 $ 1,889 $ 5,595 $ 53,313 $ 1,389 $ 67,700 Commercial real estate: Pass $ 235,900 $ 156,646 $ 96,153 $ 102,166 $ 59,859 $ 60,720 $ 22,962 $ 56 $ 734,462 Special Mention — — — 15 951 — — — 966 Substandard 1,606 1,994 1,742 323 1,344 8,164 — 22 15,195 Doubtful — — — — — — — — — Total commercial real estate loans $ 237,506 $ 158,640 $ 97,895 $ 102,504 $ 62,154 $ 68,884 $ 22,962 $ 78 $ 750,623 Construction and land: Pass $ 87,540 $ 91,337 $ 16,703 $ 5,486 $ 2,585 $ 1,505 $ 1,892 $ 429 $ 207,477 Special Mention 877 — — — — 618 — 627 2,122 Substandard 451 50 — — 252 249 — 11,222 12,224 Doubtful — — — — — — — — — Total construction and land loans $ 88,868 $ 91,387 $ 16,703 $ 5,486 $ 2,837 $ 2,372 $ 1,892 $ 12,278 $ 221,823 Term Loans by Origination Year (dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Loans Total Multi-family residential: Pass $ 40,462 $ 24,329 $ 9,711 $ 3,844 $ 2,889 $ 4,539 $ 1,452 $ — $ 87,226 Special Mention — — — — — — — — — Substandard — — — — — 106 — — 106 Doubtful — — — — — — — — — Total multi-family residential loans $ 40,462 $ 24,329 $ 9,711 $ 3,844 $ 2,889 $ 4,645 $ 1,452 $ — $ 87,332 Commercial and industrial: Pass $ 264,079 $ 29,115 $ 21,053 $ 6,001 $ 3,952 $ 2,408 $ 82,039 $ 1,311 $ 409,958 Special Mention 2,089 792 131 — — 1 1,801 — 4,814 Substandard 592 — 427 23 141 16 1,955 — 3,154 Doubtful — — — — — — — — — Total commercial and industrial loans $ 266,760 $ 29,907 $ 21,611 $ 6,024 $ 4,093 $ 2,425 $ 85,795 $ 1,311 $ 417,926 Consumer: Pass $ 6,844 $ 2,667 $ 1,149 $ 2,073 $ 1,118 $ 18,258 $ 6,340 $ 27 $ 38,476 Special Mention 4 — 4 — 13 120 — 5 146 Substandard — 34 3 12 17 223 — 1 290 Doubtful — — — — — — — — — Total consumer loans $ 6,848 $ 2,701 $ 1,156 $ 2,085 $ 1,148 $ 18,601 $ 6,340 $ 33 $ 38,912 Total loans: Pass $ 694,955 $ 370,471 $ 193,209 $ 169,385 $ 109,331 $ 207,555 $ 185,756 $ 4,669 $ 1,935,331 Special Mention 2,970 792 302 74 964 1,796 1,801 632 9,331 Substandard 2,778 2,112 2,172 693 2,823 11,510 1,959 11,245 35,292 Doubtful — — — — — — — — — Total loans $ 700,703 $ 373,375 $ 195,683 $ 170,152 $ 113,118 $ 220,861 $ 189,516 $ 16,546 $ 1,979,954 The following table presents the Company's loan portfolio by credit quality classification as of December 31, 2019. December 31, 2019 (dollars in thousands) Pass Special Substandard Doubtful Total Originated loans: One- to four-family first mortgage $ 248,483 $ 730 $ 2,133 $ — $ 251,346 Home equity loans and lines 56,029 53 882 — 56,964 Commercial real estate 517,615 207 11,317 — 529,139 Construction and land 164,310 8,107 1,270 — 173,687 Multi-family residential 48,661 — — — 48,661 Commercial and industrial 153,286 — 2,438 — 155,724 Consumer 35,545 46 89 — 35,680 Total originated loans $ 1,223,929 $ 9,143 $ 18,129 $ — $ 1,251,201 Acquired loans: One- to four-family first mortgage $ 173,482 $ 1,429 $ 4,563 $ — $ 179,474 Home equity loans and lines 22,370 128 350 — 22,848 Commercial real estate 181,090 1,593 10,985 — 193,668 Construction and land 19,877 747 1,437 — 22,061 Multi-family residential 5,487 502 219 — 6,208 Commercial and industrial 24,856 56 4,065 — 28,977 Consumer 9,668 166 90 — 9,924 Total acquired loans $ 436,830 $ 4,621 $ 21,709 $ — $ 463,160 Total loans: One- to four-family first mortgage $ 421,965 $ 2,159 $ 6,696 $ — $ 430,820 Home equity loans and lines 78,399 181 1,232 — 79,812 Commercial real estate 698,705 1,800 22,302 — 722,807 Construction and land 184,187 8,854 2,707 — 195,748 Multi-family residential 54,148 502 219 — 54,869 Commercial and industrial 178,142 56 6,503 — 184,701 Consumer 45,213 212 179 — 45,604 Total loans $ 1,660,759 $ 13,764 $ 39,838 $ — $ 1,714,361 The preceding classifications follow regulatory guidelines and can generally be described as follows: • Pass loans are of satisfactory quality. • Special mention loans have an existing weakness that could cause future impairment, including the deterioration of financial ratios, past due status, questionable management capabilities and possible reduction in the collateral values. • Substandard loans have an existing specific and well defined weakness that may include poor liquidity and deterioration of financial ratios. The loan may be past due and related deposit accounts experiencing overdrafts. Immediate corrective action is necessary. • Doubtful loans have specific weaknesses that are severe enough to make collection or liquidation in full highly questionable and improbable. In addition, residential loans are classified using an inter-regulatory agency methodology that incorporates, among other factors, the extent of delinquencies and loan-to-value ratios. These classifications were the most current available as of December 31, 2020 and 2019, respectively, and were generally updated within the prior three months. Age analysis of past due loans, as of the dates indicated, is as follows. December 31, 2020 (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Greater Than 90 Days Past Due Total Past Due Current Loans Total Loans Originated loans: Real estate loans: One- to four-family first mortgage $ 1,651 $ 66 $ 365 $ 2,082 $ 258,386 $ 260,468 Home equity loans and lines 117 148 — 265 52,101 52,366 Commercial real estate 518 532 6,770 7,820 581,524 589,344 Construction and land — — — — 207,928 207,928 Multi-family residential 94 — — 94 82,051 82,145 Total real estate loans 2,380 746 7,135 10,261 1,181,990 1,192,251 Other loans: Commercial and industrial 797 3 603 1,403 398,377 399,780 Consumer 219 42 145 406 32,702 33,108 Total other loans 1,016 45 748 1,809 431,079 432,888 Total originated loans $ 3,396 $ 791 $ 7,883 $ 12,070 $ 1,613,069 $ 1,625,139 Acquired loans: Real estate loans: One- to four-family first mortgage $ 1,823 $ 502 $ 1,154 $ 3,479 $ 131,691 $ 135,170 Home equity loans and lines 34 43 25 102 15,232 15,334 Commercial real estate 603 303 2,462 3,368 157,911 161,279 Construction and land — — 142 142 13,753 13,895 Multi-family residential 92 — — 92 5,095 5,187 Total real estate loans 2,552 848 3,783 7,183 323,682 330,865 Other loans: Commercial and industrial 3 — 907 910 17,236 18,146 Consumer 126 50 66 242 5,562 5,804 Total other loans 129 50 973 1,152 22,798 23,950 Total acquired loans $ 2,681 $ 898 $ 4,756 $ 8,335 $ 346,480 $ 354,815 Total loans: Real estate loans: One- to four-family first mortgage $ 3,474 $ 568 $ 1,519 $ 5,561 $ 390,077 $ 395,638 Home equity loans and lines 151 191 25 367 67,333 67,700 Commercial real estate 1,121 835 9,232 11,188 739,435 750,623 Construction and land — — 142 142 221,681 221,823 Multi-family residential 186 — — 186 87,146 87,332 Total real estate loans 4,932 1,594 10,918 17,444 1,505,672 1,523,116 Other loans: Commercial and industrial 800 3 1,510 2,313 415,613 417,926 Consumer 345 92 211 648 38,264 38,912 Total other loans 1,145 95 1,721 2,961 453,877 456,838 Total loans $ 6,077 $ 1,689 $ 12,639 $ 20,405 $ 1,959,549 $ 1,979,954 December 31, 2019 (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Greater Than 90 Days Past Due Total Past Due Current Loans Total Loans Originated loans: Real estate loans: One- to four-family first mortgage $ 1,524 $ 173 $ 967 $ 2,664 $ 248,682 $ 251,346 Home equity loans and lines 174 — 98 272 56,692 56,964 Commercial real estate 1,124 1,448 8,056 10,628 518,511 529,139 Construction and land — — 1,171 1,171 172,516 173,687 Multi-family residential — — — — 48,661 48,661 Total real estate loans 2,822 1,621 10,292 14,735 1,045,062 1,059,797 Other loans: Commercial and industrial 213 100 869 1,182 154,542 155,724 Consumer 533 57 34 624 35,056 35,680 Total other loans 746 157 903 1,806 189,598 191,404 Total originated loans $ 3,568 $ 1,778 $ 11,195 $ 16,541 $ 1,234,660 $ 1,251,201 Acquired loans: Real estate loans: One- to four-family first mortgage $ 4,555 $ 1,116 $ 1,108 $ 6,779 $ 172,695 $ 179,474 Home equity loans and lines 267 93 330 690 22,158 22,848 Commercial real estate 337 466 1,945 2,748 190,920 193,668 Construction and land 413 — 1,170 1,583 20,478 22,061 Multi-family residential — — — — 6,208 6,208 Total real estate loans 5,572 1,675 4,553 11,800 412,459 424,259 Other loans: Commercial and industrial 3 57 792 852 28,125 28,977 Consumer 259 127 60 446 9,478 9,924 Total other loans 262 184 852 1,298 37,603 38,901 Total acquired loans $ 5,834 $ 1,859 $ 5,405 $ 13,098 $ 450,062 $ 463,160 Total loans: Real estate loans: One- to four-family first mortgage $ 6,079 $ 1,289 $ 2,075 $ 9,443 $ 421,377 $ 430,820 Home equity loans and lines 441 93 428 962 78,850 79,812 Commercial real estate 1,461 1,914 10,001 13,376 709,431 722,807 Construction and land 413 — 2,341 2,754 192,994 195,748 Multi-family residential — — — — 54,869 54,869 Total real estate loans 8,394 3,296 14,845 26,535 1,457,521 1,484,056 Other loans: Commercial and industrial 216 157 1,661 2,034 182,667 184,701 Consumer 792 184 94 1,070 44,534 45,604 Total other loans 1,008 341 1,755 3,104 227,201 230,305 Total loans $ 9,402 $ 3,637 $ 16,600 $ 29,639 $ 1,684,722 $ 1,714,361 At December 31, 2020, $2,000 of loans were greater than 90 days past due and accruing interest. At December 31, 2019, excluding PCI loans, the Company did not have any loans greater than 90 days past due and accruing. The Company reviews its significant nonaccrual loans (i.e., loans with balances of $250,000 or greater) for specific impairment in accordance with its allowance for credit loss methodology. If it is determined that it is probable that all amounts due will not be collected when other credit quality indicators are considered, the loan is considered impaired and the Company individually evaluates these loans to the determine expected credit losses. The following table summarizes information pertaining to nonaccrual loans as of dates indicated. December 31, 2020 December 31, 2019 (dollars in thousands) With Related Allowance Without Related Allowance Total (1) Total (2) Nonaccrual loans: One- to four-family first mortgage $ 3,838 $ — $ 3,838 $ 3,948 Home equity loans and lines 63 — 63 1,244 Commercial real estate 12,298 — 12,298 13,325 Construction and land 469 — 469 2,469 Multi-family residential — — — — Commercial and industrial 1,717 — 1,717 3,224 Consumer 292 — 292 176 Total $ 18,677 $ — $ 18,677 $ 24,386 (1) Due to the adoption of ASC 326, PCD loans of $390,000 are included in nonaccrual loans at December 31, 2020. Prior to January 1, 2020, these loans were classified as PCI and excluded from nonperforming loans because they continued to earn interest income from the accretable yield at the pool level. At adoption, the pools were discontinued and performance is based on contractual terms for individual loans. (2) PCI loans which were being accounted for under ASC 310-30 were excluded from nonaccrual loans because they continued to earn interest from accretable yield regardless of their status as past due or otherwise not in compliance with their contractual terms. PCI loans which were being accounted for under ASC 310-30 and which were 90 days or more past due totaled $2.2 million as of December 31, 2019. All interest accrued but not received for loans placed on nonaccrual status is reversed against interest income. All payments received while on nonaccrual status are applied against the principal balance of nonaccrual loans. The Company does not recognize interest income while loans are on nonaccrual status. As of December 31, 2020, the Company was not committed to lend additional funds to any customer whose loan was individually evaluated for impairment. Collateral Dependent Loans The Company held loans that were individually evaluated for impairment at December 31, 2020 for which the repayment, on the basis of our assessment at the reporting date, is expected to be provided substantially through the operation or sale of the collateral and the borrower is experiencing financial difficulty. The ACL for these collateral-dependent loans is primarily based on the fair value of the underlying collateral at the reporting date. The following describes the types of collateral that secure collateral dependent loans: • One- to four-family first mortgages are primarily secured by first liens on residential real estate. • Home equity loans and lines are primarily secured by first and junior liens on residential real estate. • Commercial real estate loans are primarily secured by office and industrial buildings, warehouses, retail shopping facilities and various special purpose properties, including hotels and restaurants. • Construction and land loans are primarily secured by residential and commercial properties, which are under construction and/or redevelopment, and by raw land. • Commercial and industrial loans considered collateral dependent are primarily secured by accounts receivable, inventory and equipment. The table below summarizes collateral dependent loans and the related ACL at December 31, 2020 for which the borrower is experiencing financial difficulty. (dollars in thousands) Loans ACL One- to four-family first mortgage $ 1,006 $ 100 Home equity loans and lines — — Commercial real estate 7,400 1,008 Construction and land — — Multi-family residential — — Commercial and industrial 606 431 Consumer — — Total $ 9,012 $ 1,539 At December 31, 2020, collateral dependent commercial real estate loans included one loan acquired with deteriorated credit quality totaling $277,000. Prior to the adoption of ASC 326 on January 1, 2020, the Company accounted for impaired loans under ASC 310. The following provides a summary of information for the Company's impaired loans at and for the years ended December 31, 2019 and 2018. For the Year Ended December 31, 2019 (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: One- to four-family first mortgage $ 187 $ 187 $ — $ 109 $ — Home equity loans and lines 404 450 — 418 — Commercial real estate 19 21 — 41 — Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 291 329 — 1,063 — Consumer — — — — — Total $ 901 $ 987 $ — $ 1,631 $ — With an allowance recorded: One- to four-family first mortgage $ — $ — $ — $ — $ — Home equity loans and lines 380 425 348 400 — Commercial real estate 6,499 6,587 298 6,639 15 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 932 1,214 701 566 — Consumer — — — — — Total $ 7,811 $ 8,226 $ 1,347 $ 7,605 $ 15 Total impaired loans: One- to four-family first mortgage $ 187 $ 187 $ — $ 109 $ — Home equity loans and lines 784 875 348 818 — Commercial real estate 6,518 6,608 298 6,680 15 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 1,223 1,543 701 1,629 — Consumer — — — — — Total $ 8,712 $ 9,213 $ 1,347 $ 9,236 $ 15 For the Year Ended December 31, 2018 (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: One- to four-family first mortgage $ — $ — $ — $ — $ — Home equity loans and lines 441 476 — 454 — Commercial real estate 149 161 — 32 7 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 1,540 1,904 — 438 — Consumer — — — — — Total $ 2,130 $ 2,541 $ — $ 924 $ 7 With an allowance recorded: One- to four-family first mortgage $ — $ — $ — $ — $ — Home equity loans and lines 425 457 349 440 — Commercial real estate 6,910 6,910 484 2,057 38 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 412 442 321 1,367 1 Consumer — — — — — Total $ 7,747 $ 7,809 $ 1,154 $ 3,864 $ 39 Total impaired loans: One- to four-family first mortgage $ — $ — $ — $ — $ — Home equity loans and lines 866 933 349 894 — Commercial real estate 7,059 7,071 484 2,089 45 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 1,952 2,346 321 1,805 1 Consumer — — — — — Total $ 9,877 $ 10,350 $ 1,154 $ 4,788 $ 46 Foreclosed Assets and ORE Foreclosed assets and ORE include real property and other assets that have been acquired as a result of foreclosure, and real property no longer used in the Bank's business. Foreclosed assets and ORE totaled $1,302,000 and $4,156,000 at December 31, 2020 and December 31, 2019, respectively. These amounts are recorded in accrued interest receivable and other assets on the Consolidated Statements of Financial Condition. The carrying amount of foreclosed residential real estate properties held at December 31, 2020 and December 31, 2019 totaled $877,000 and $1,737,000, respectively. Loans secured by single family residential real estate that were in the process of foreclosure at December 31, 2020 and December 31, 2019 totaled $446,000 and $723,000, respectively. Foreclosed assets and ORE included certain bank buildings that meet the criteria to be classified as assets held for sale. The carrying value of these assets totaled $212,000 and $1,275,000 at December 31, 2020 and December 31, 2019, respectively. During the year ended December 31, 2020, the Company sold six of these properties, with a total carrying value of $1,035,000, for a loss of $126,000 recorded in foreclosed assets and ORE, net expense on the Consolidated Statements of Income. The expected timing of the sale of the remaining properties is uncertain. Troubled Debt Restructurings During the course of its lending operations, the Company periodically grants concessions to its customers in an attempt to protect as much of its investment as possible and to minimize risk of loss. These concessions may include restructuring the terms of a customer loan to alleviate the burden of the customer’s near-term cash requirements. Loans are TDRs when the Company agrees to restructure a loan to a borrower who is experiencing financial difficulties in a manner that is deemed to be a “concession”. The Company defines a concession as a modification of existing terms granted to a borrower for economic or legal reasons related to the borrower’s financial difficulties that the Company would otherwise not consider. The concession either is granted through an agreement with the customer or is imposed by a court or by law. Concessions include modifying original loan terms to reduce or defer cash payments required as part of the loan agreement, including but not limited to: • a reduction of the stated interest rate for the remaining original life of the debt, • an extension of the maturity date or dates at an interest rate lower than the current market rate for new debt with similar risk characteristics, • a reduction of the face amount or maturity amount of the debt or • a reduction of accrued interest receivable on the debt. In its determination of whether the customer is experiencing financial difficulties, the Company considers numerous indicators, including, but not limited to: • whether the customer is currently in default on its existing loan, or is in an economic position where it is probable the customer will be in default on its loan in the foreseeable future without a modification, • whether the customer has declared or is in the process of declaring bankruptcy, • whether there is substantial doubt about the customer’s ability to continue as a going concern, • whether, based on its projections of the customer’s current capabilities, the Company believes the customer’s future cash flows will be insufficient to service the debt, including interest, in accordance with the contractual terms of the existing agreement for the foreseeable future and • whether, without modification, the customer cannot obtain sufficient funds from other sources at an effective interest rate equal to the current market rate for similar debt for a non-troubled debtor. If the Company concludes that both a concession has been granted and the concession was granted to a customer experiencing financial difficulties, the Company identifies the loan as a TDR. For purposes of the determination of an ACL, larger (i.e., TDRs with balances of $250,000 or greater) commercial TDRs are individually evaluated for impairment. The ACL for loans that are individually evaluated is based on a comparison of the recorded investment in the loan with either the expected cash flows discounted using the loan’s original effective interest rate, observable market price for the loan or the fair value of the collateral underlying certain collateral-dependent loans. Residential, consumer and smaller balance commercial TDRs are included in the Company's pooled-loan analysis to calculate the ACL and, generally, do not have a material impact on the overall ACL. As of December 31, 2020, the Company had modified loans with an aggregate outstanding loan balance of $36,047,000, or 2% of total outstanding loans, via payment relief in the nature of principal and/or interest deferrals. These modifications were done in accordance with Section 4013 of the Coronavirus Aid, Relief, and Economic Security ("CARES") Act and the Interagency Statement on Loan Modifications on Reporting for Financial Institutions Working With Customers Affected by the Coronavirus . Accordingly, these loans were not categorized as TDRs. Information about the Company’s TDRs is presented in the following tables. As of December 31, 2020 (dollars in thousands) Current Past Due Greater Than 30 Days Nonaccrual TDRs Total TDRs Originated loans: Real estate loans: One- to four-family first mortgage $ 342 $ 257 $ 1,099 $ 1,698 Home equity loans and lines 48 — 24 72 Commercial real estate 712 — 5,291 6,003 Construction and land 83 — — 83 Multi-family residential — — — — Total real estate loans 1,185 257 6,414 7,856 Other loans: Commercial and industrial — — — — Consumer 70 — 44 114 Total other loans 70 — 44 114 Total loans $ 1,255 $ 257 $ 6,458 $ 7,970 Acquired loans: Real estate loans: One- to four-family first mortgage $ 376 $ — $ 964 $ 1,340 Home equity loans and lines — — 14 14 Commercial real estate 86 — 2,133 2,219 Construction and land — — 185 185 Multi-family residential 102 — — 102 Total real estate loans 564 — 3,296 3,860 Other loans: Commercial and industrial — — 520 520 Consumer 9 — 23 32 Total other loans 9 — 543 552 Total loans $ 573 $ — $ 3,839 $ 4,412 Total loans: Real estate loans: One- to four-family first mortgage $ 718 $ 257 $ 2,063 $ 3,038 Home equity loans and lines 48 — 38 86 Commercial real estate 798 — 7,424 8,222 Construction and land 83 — 185 268 Multi-family residential 102 — — 102 Total real estate loans 1,749 257 9,710 11,716 Other loans: Commercial and industrial — — 520 520 Consumer 79 — 67 146 Total other loans 79 — 587 666 Total loans $ 1,828 $ 257 $ 10,297 $ 12,382 As of December 31, 2019 (dollars in thousands) Current Past Due Nonaccrual Total Originated loans: Real estate loans: One- to four-family first mortgage $ 671 $ 82 $ 1,370 $ 2,123 Home equity loans and lines 235 53 36 324 Commercial real estate 670 — 5,824 6,494 Construction and land 100 — — 100 Multi-family residential — — — — Total real estate loans 1,676 135 7,230 9,041 Other loans: Commercial and industrial — — 303 303 Consumer 92 — 54 146 Total other loans 92 — 357 449 Total loans $ 1,768 $ 135 $ 7,587 $ 9,490 Acquired loans: Real estate loans: One- to four-family first mortgage $ 365 $ — $ 617 $ 982 Home equity loans and lines — — 20 20 Commercial real estate 90 — 194 284 Construction and land — — — — Multi-family residential — — — — Total real estate loans 455 — 831 1,286 Other loans: Commercial and industrial — — 1,362 1,362 Consumer 20 — 25 45 Total other loans 20 — 1,387 1,407 Total loans $ 475 $ — $ 2,218 $ 2,693 Total loans: Real estate loans: One- to four-family first mortgage $ 1,036 $ 82 $ 1,987 $ 3,105 Home equity loans and lines 235 53 56 344 Commercial real estate 760 — 6,018 6,778 Construction and land 100 — — 100 Multi-family residential — — — — Total real estate loans 2,131 135 8,061 10,327 Other loans: Commercial and industrial — — 1,665 1,665 Consumer 112 — 79 191 Total other loans 112 — 1,744 1,856 Total loans $ 2,243 $ 135 $ 9,805 $ 12,183 A summary of information pertaining to loans modified as of the periods indicated is as follows. For the Year Ended December 31 2020 2019 (dollars in thousands) Number of Contracts Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Number of Contracts Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Troubled debt restructurings: One- to four-family first mortgage 11 $ 1,409 $ 778 6 $ 932 $ 919 Home equity loans and lines — — — — — — Commercial real estate 9 3,193 3,100 2 193 192 Construction and land 1 185 185 — — — Multi-family residential — — — — — — Commercial and industrial 5 96 81 18 842 820 Other consumer 2 13 8 6 78 70 Total 28 $ 4,896 $ 4,152 32 $ 2,045 $ 2,001 As of December 31, 2020 and 2019, the Company had no unfunded commitments to borrowers whose loan terms had been modified through troubled debt restructurings. Two commercial real estate loans totaling $282,000, four residential mortgages totaling $582

Loan Servicing

Loan Servicing	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Loan Servicing	Loan Servicing Mortgage loans sold to and serviced for others are not included in the accompanying statements of financial condition. The unpaid principal balances of these loans as of December 31 of the years indicated are summarized as follows: (dollars in thousands) 2020 2019 Mortgage loans sold to Federal Home Loan Mortgage Corporation without recourse $ 2,633 $ 3,723 Mortgage loans sold to Federal National Mortgage Association without recourse 78,080 114,895 Mortgage loans sold to Federal Home Loan Bank without recourse 185 200 Total, end of period $ 80,898 $ 118,818 The Company records servicing assets related to mortgage loans sold and serviced at fair value and will amortize these servicing assets over the period of estimated net servicing income associated with each loan. Management assesses servicing assets for potential impairment annually. Changes in the carrying value of servicing assets are recorded in service fees and charges on the Consolidated Statements of Income. Activity related to servicing assets for the years ended December 31, 2020, 2019 and 2018 is summarized as follows. (dollars in thousands) 2020 2019 2018 Balance, beginning of period $ 161 $ 272 $ 422 Amortization (161) (111) (150) Balance, end of period — 161 272 Fair value, end of period $ — $ 530 $ 789 Custodial and escrow account balances maintained in connection with the foregoing loan servicing arrangements were $1,761,000 and $2,201,000 as of December 31, 2020 and 2019, respectively.

Office Properties and Equipment

Office Properties and Equipment	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Office Properties and Equipment	Office Properties and Equipment Office properties and equipment consisted of the following at December 31 of the years indicated. (dollars in thousands) 2020 2019 Land $ 14,245 $ 14,245 Buildings and improvements 36,880 36,364 Furniture and equipment 15,416 14,499 Total office properties and equipment 66,541 65,108 Less accumulated depreciation 21,044 18,683 Total office properties and equipment, net $ 45,497 $ 46,425 Depreciation expense for the years ended December 31, 2020, 2019 and 2018 was $3,063,000, $2,875,000 and $2,504,000, respectively. During the fourth quarter of 2019, the Company determined that certain buildings met the criteria to be classified as assets held for sale. The carrying values of such assets were $212,000 and $1,275,000 at December 31, 2020 and 2019, respectively, and are reported as foreclosed assets and ORE. Foreclosed assets and ORE are recorded within accrued interest receivable and other assets in the Statements of Financial Condition as of December 31, 2020 and 2019. For more information on the Company's policy on foreclosed assets and ORE, refer to Note 2, Summary of Significant Accounting Policies .

Goodwill and Intangibles

Goodwill and Intangibles	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangibles	Goodwill and Intangibles Goodwill and other intangible assets are presented in the table below. Changes in carrying amount of the Company’s goodwill and core deposit intangible (“CDI”) for the years ended December 31, 2020, 2019 and 2018 were as follows. (dollars in thousands) Goodwill CDI Balance, December 31, 2017 $ 58,621 $ 9,412 SMB acquisition (133) — Amortization of intangibles — (1,845) Balance, December 31, 2018 58,488 7,567 Amortization of intangibles — (1,583) Balance, December 31, 2019 58,488 5,984 Amortization of intangibles — (1,360) Balance, December 31, 2020 $ 58,488 $ 4,624 The Company completed its annual impairment test of goodwill and other intangible assets as of December 31, 2020. The evaluation did not indicate impairment on its goodwill or other intangible assets.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2020
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Deposits	Deposits The Company’s deposits consisted of the following major classifications as of December 31 of the years indicated. (dollars in thousands) 2020 2019 Demand deposit accounts $ 615,700 $ 437,828 Savings 250,165 201,887 Money market accounts 333,078 273,741 NOW accounts 646,085 512,054 Certificates of deposit 368,793 395,465 Total deposits $ 2,213,821 $ 1,820,975 As of December 31, 2020, the scheduled maturities of the Company’s certificates of deposit were as follows. (dollars in thousands) Amount 2021 $ 297,387 2022 50,672 2023 11,917 2024 4,419 2025 3,221 Thereafter 1,177 Total certificates of deposit $ 368,793 As of December 31, 2020 and 2019, the aggregate amount of certificates of deposit with balances of $250,000 or more was $69,060,000 and $74,813,000, respectively.

Other Borrowings

Other Borrowings	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Other Borrowings	Other BorrowingsOther borrowings at December 31, 2020 and 2019 included a $5,539,000 note payable with a rate of 3.83% on the Company’s investment in a new market tax credit entity. The note payable is a 20-year leverage loan with interest-only payments for the first seven years. The note was originated in October 2018.

Short-term FHLB Advances

Short-term FHLB Advances	12 Months Ended
	Dec. 31, 2020
Advances from Federal Home Loan Banks [Abstract]
Short-term FHLB Advances	Short-term FHLB Advances As of December 31, 2020 and 2019, the Company had no short-term FHLB advances. For the years ended December 31, 2020 and 2019, the average volume of short-term FHLB advances carried by the Company was $8,081,000 and $17,000, respectively. Collateral for short and long-term FHLB advances is secured through a blanket lien evidenced by the Company’s pledge of first mortgage collateral, demand deposit accounts, capital stock and certain other assets pursuant to the “Advances, Collateral Pledge and Security Agreement.” Under this collateral pledge agreement, the Bank must meet all statutory and regulatory capital standards and must meet all FHLB credit underwriting standards. Management believes that the Bank was in compliance with all such requirements as of December 31, 2020 and 2019. As of December 31, 2020 and 2019, the Company had $787,232,000 and $738,955,000, respectively, of additional FHLB advances available. As of December 31, 2020 and 2019, the Company had $836,829,000 and $768,549,000, respectively, of loans pledged through the Company’s blanket lien.

Long-term FHLB Advances

Long-term FHLB Advances	12 Months Ended
	Dec. 31, 2020
Advances from Federal Home Loan Banks [Abstract]
Long-term FHLB Advances	Long-term FHLB Advances As of December 31, 2020 and 2019, the Company’s long-term FHLB advances totaled $28,824,000 and $40,620,000, respectively. The following table summarizes long-term advances as of December 31, 2020. (dollars in thousands) Amount Weighted Average Rate Fixed rate advances maturing in: 2021 $ 1,174 2.04 % 2022 5,042 2.08 2023 3,066 1.37 2024 4,434 1.76 2025 11,296 1.64 Thereafter 3,812 1.68 Total long-term FHLB advances $ 28,824 1.73 %

Derivatives and Hedging Activit

Derivatives and Hedging Activities	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	Derivatives and Hedging Activities Risk Management Objective of Using Derivatives The Company is exposed to certain risk arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s existing credit derivatives result from loan participation arrangements, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. The Company occasionally enters into credit risk participation agreements with counterparty banks to accept a portion of the credit risk related to interest rate swaps. The agreements, which are typically executed in conjunction with a participation in a loan with the same customer, allow customers to execute an interest rate swap with one bank while allowing for the distribution of the credit risk among participating members. Collateral used to support the credit risk for the underlying lending relationship is also available to offset the risk of credit risk participations and customer derivative positions. Cash Flow Hedges of Interest Rate Risk The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. As part of its efforts to accomplish this objective, during the second quarter of 2020, the Company entered into certain interest rate swap agreements as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. During 2020, such derivatives were used to hedge the variable cash flows associated with existing variable rate liabilities. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in Accumulated Other Comprehensive Income and subsequently reclassified into interest expense in the same period(s) during which the hedged transaction affects earnings. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable rate liabilities. During the next twelve months, the Company estimates that an additional $60,000 will be reclassified as additional interest expense. Non-designated Hedges The Company’s existing credit derivatives result from participations in interest rate swaps provided by external lenders as part of loan participation arrangements, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain lenders which participate in loans. For derivative instruments that are not designated as hedging instruments, changes in the fair value of the derivatives are recognized in earnings immediately. Fair Values of Derivative Instruments The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statement of Financial Condition as of December 31, 2020. Derivative Assets (1) Derivative Liabilities (1) (dollars in thousands) Notional Amount Fair Value Notional Amount Fair Value Derivatives designated as hedging instruments: Interest rate swaps - variable rate liabilities $ 40,000 $ 214 $ — $ — Derivatives not designated as hedging instruments: Risk participation agreements — — 10,000 58 Netting adjustments — — Net derivative amounts $ 214 $ 58 (1) Derivative assets and liabilities are reported at fair value in accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively, in the Consolidated Statements of Financial Condition. Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income The table below presents the effect of cash flow hedge accounting on Accumulated Other Comprehensive Income as of December 31, 2020. Year Ended December 31, 2020 Amount of Gain Recognized in OCI Location of Gain Reclassified from AOCI into Income Amount of Loss Reclassified from AOCI into Income (dollars in thousands) Total Included Component Total Included Component Derivatives in cash flows hedging relationships: Interest rate swaps - variable rate liabilities $ 176 $ 176 Interest expense $ (44) $ (44) Effect of Cash Flow Hedge Accounting on the Consolidated Statements of Income The table below presents the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income as of December 31, 2020. (dollars in thousands) Location of Loss Reclassified from AOCI into Income For the Year Ended December 31, 2020 Effects of cash flow hedging Interest rate swaps - variable rate liabilities Interest expense $ (44) Effect of Derivatives Not Designated as Hedging Instruments on the Consolidated Statements of Income The table below presents the effect of the Company’s derivative financial instruments that are not designated as hedging instruments on the Consolidated Statements of Income as of December 31, 2020. (dollars in thousands) Location of Income Recognized on Non-designated Hedges For the Year Ended December 31, 2020 Effects of non-designated hedges Risk participation agreements Other noninterest income $ 111 Credit-risk-related Contingent Features The Company has agreements with each of its derivative counterparties that contain a provision where if the Company (either) defaults (or is capable of being declared in default) on any of its indebtedness, then the Company could also be declared in default on its derivative obligations. The Company has agreements with certain of its derivative counterparties that contain a provision where if the Company fails to maintain its status as a well or adequately capitalized institution, then the Company could be required to post additional collateral. As of December 31, 2020, there were no derivatives with credit-risk-related contingent features in a net liability position. Such derivatives are measured at fair value, which includes accrued interest but excludes any adjustment for nonperformance risk. If the Company had breached any provisions at December 31, 2020, it would not have been required to settle any obligations under the agreements since the termination value was $0.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Tax Cuts and Jobs Act of 2017 included a number of changes to existing U.S. tax laws that impact the Company, most notably a reduction of the U.S. corporate income tax rate from 35% to 21% for tax years beginning after December 31, 2017. The Company files federal income tax returns on a calendar year basis. Income tax expense for the years indicated is summarized as follows: (dollars in thousands) 2020 2019 2018 Current $ 8,030 $ 6,123 $ 5,747 Deferred (1,588) 137 2,137 NMTC (400) (400) (400) Impact of Tax Cuts and Jobs Act — — (789) Total income tax expense $ 6,042 $ 5,860 $ 6,695 The components of the Company’s net deferred tax asset, which is included in accrued interest receivable and other assets in the accompanying Statement of Financial Condition at December 31 of the years indicated are as follows: (dollars in thousands) 2020 2019 Deferred tax assets: Provision for loan losses $ 5,949 $ 3,752 Discount on purchased loans 1,146 1,842 Salary continuation plan 700 678 Mortgage servicing rights 80 95 Deferred compensation 5 52 Stock-based compensation 257 264 ASC 326 Adoption Impact (1) 1,063 — Other 65 101 Deferred tax assets $ 9,265 $ 6,784 Deferred tax liabilities: FHLB stock dividends $ (64) $ (108) Accumulated depreciation (3,457) (2,974) Intangible assets (628) (858) Premium on investment securities acquired — — Unrealized gain on securities available for sale (1,356) (184) NMTC (72) (48) Other (105) (96) Deferred tax liabilities (5,682) (4,268) Net deferred tax asset $ 3,583 $ 2,516 (1) The company adopted ASC 326 on January 1, 2020 which included a transition adjustment, net of taxes, to retained earnings. The tax impact due to the adoption of ASC 326 shown here does not include the effect of state tax. Refer to Not e 2 for more information on the adoption of ASC 326. For the years ended December 31, 2020, 2019 and 2018, the Company’s provision for federal income taxes differed from the amount computed by applying the federal income tax statutory rate of 21% on income from operations as indicated in the following analysis: (dollars in thousands) 2020 2019 2018 Federal tax based on statutory rate $ 6,544 $ 7,089 $ 8,023 State tax based on statutory rate 42 34 82 (Decrease) increase resulting from: NMTC (400) (400) (400) Effect of tax-exempt income (136) (128) (171) Changes in the cash surrender value of bank owned life insurance (209) (435) (138) Nondeductible share based compensation expense 162 177 191 Exercise of stock options (8) (599) (131) DTA adjustment – impact of Tax Act — — (789) Other 47 122 28 Income tax expense $ 6,042 $ 5,860 $ 6,695 Effective tax rate 19.6 % 17.3 % 17.5 %

Commitments

Commitments	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments	Commitments Standby letters of credit represent commitments by the Bank to meet the obligations of certain customers if called upon. The Bank normally secures its outstanding standby letters of credit with deposits from the customer. Additionally, in the normal course of business, there were various other commitments and contingent liabilities which are not reflected in the financial statements. Loan commitments are single-purpose commitments to lend which will be funded and reduced according to specified repayment schedules. Most of these commitments have maturities of less than one year. The following table summarizes our outstanding commitments to originate loans and to advance additional amounts pursuant to outstanding letters of credit, lines of credit, and the undisbursed portion of construction loans as of December 31 of the years indicated. Contract Amount (dollars in thousands) 2020 2019 Standby letters of credit $ 5,781 $ 6,098 Available portion of lines of credit 266,349 247,670 Undisbursed portion of loans in process 99,527 111,466 Commitments to originate loans 139,471 87,446 The Bank uses the same credit policies in making commitments as it does for on-balance-sheet instruments. The Bank evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Bank upon extension of credit, is based on management’s credit evaluation of the customer. Collateral held varies but may include certificates of deposit, property, plant and equipment and income-producing properties. There are no commitments which present an unusual risk to the Bank, and no material losses are anticipated as a result of these transactions.

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2020
Federal Home Loan Banks [Abstract]
Regulatory Matters	Regulatory Matters The Bank is subject to regulatory capital requirements administered by the OCC. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of its assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. In July 2013, the Federal bank regulatory agencies issued a final rule that revised their risk-based capital requirements and the method for calculating components of capital and of computing risk-weighted assets to make them consistent with agreements that were reached by the Basel Committee on Banking Supervision and certain provisions of the Dodd-Frank Act. The rule established a common equity Tier 1 minimum capital requirement, increased the minimum capital ratios and assigned a higher risk weight to certain assets based on the risk associated with these assets. The final rule also included a capital conservation buffer which was phased in over a five-year period until it reached 2.5% on January 1, 2019. Dividends paid by the Bank are the primary source of funds available to the Company. Banking regulations limit the amount of dividends that may be paid without prior approval of the regulatory authorities. Quantitative measures established by regulation to ensure capital adequacy requires the Bank to maintain minimum amounts and ratios (set forth in the table below) of total and Tier 1 risk-based capital (as defined) to average assets and risk-weighted assets (as defined). Management believes, as of December 31, 2020 and 2019, that the Bank met all capital adequacy requirements to which it was subject. As of December 31, 2020 and 2019, the most recent notification from the OCC categorized the Bank as “well capitalized” under the OCC regulatory classification framework. To be categorized as “well capitalized,” the Bank must maintain minimum Total risk-based, Tier 1 risk-based, Tier 1 leverage and common equity Tier 1 ratios as set forth in the following table. There are no conditions or events since that notification that management believes have changed the Bank’s category. The following tables present actual and required capital ratios for the the Bank under the Basel III Capital Rules. The minimum required capital amounts presented include the minimum required capital levels as of December 31, 2020 and 2019 based on the phase-in provisions of the Basel III Capital Rules as of January 1, 2019 when the Basel III Capital Rules were fully phased-in. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Actual Minimum Capital Required – Basel III Fully Phased-In To Be Well Capitalized Under Prompt Corrective Action Provisions (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio December 31, 2020 Bank: Common equity Tier 1 capital $ 245,090 13.92 % $ 123,263 7.00 % $ 114,459 6.50 % Tier 1 risk-based capital 245,090 13.92 149,677 8.50 140,872 8.00 Total risk-based capital 267,254 15.18 184,895 10.50 176,090 10.00 Tier 1 leverage capital 245,090 9.68 101,247 4.00 126,559 5.00 Actual Minimum Capital Required – Basel III Fully Phased-In To Be Well Capitalized Under Prompt Corrective Action Provisions (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio December 31, 2019 Bank: Common equity Tier 1 capital $ 240,176 14.22 % $ 118,213 7.00 % $ 109,769 6.50 % Tier 1 risk-based capital 240,176 14.22 143,545 8.50 135,101 8.00 Total risk-based capital 258,044 15.28 177,320 10.50 168,876 10.00 Tier 1 leverage capital 240,176 11.17 86,004 4.00 107,506 5.00

Benefit Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2020
Postemployment Benefits [Abstract]
Benefit Plans	Benefit Plans 401(k) and Profit Sharing Plan The Company’s 401(k) defined contribution plan allows its participants to contribute up to 75% of their pretax earnings on a tax-deferred basis up to the statutory limit. The Company’s matching contributions are equal to 100% of the employee’s contributions up to 2%, plus 50% of the employees’ contributions over 2% but not over 6% of the employee’s pay. For the years ended December 31, 2020, 2019 and 2018, the Company made contributions of $964,000, $919,000 and $872,000, respectively, in connection with the plan, which is included in compensation and benefits expense in the accompanying Consolidated Statements of Income. Employee Stock Ownership Plan In 2008, the Company established an employee stock ownership plan (“ESOP”) for the benefit of all eligible employees of the Company. The leveraged ESOP is accounted for in accordance with the requirements of ASC 718, Compensation – Stock Compensation. Employees of the Bank who have been employed for a six Under ASC 718, unearned ESOP shares are not considered outstanding and are shown as a reduction of shareholders’ equity as unearned compensation. Dividends on unallocated ESOP shares are considered to be compensation expense. The Company recognizes compensation cost equal to the fair value of the ESOP shares during the periods in which they are committed to be released. To the extent that the fair value of the Company’s ESOP shares differs from the cost of such shares, the differential is credited to shareholders’ equity. The Company receives a tax deduction equal to the cost of the shares released. As the loan is internally leveraged, the loan receivable from the ESOP to the Company is not reported as an asset nor is the debt of the ESOP shown as a Company liability. Compensation cost related to the ESOP was $726,000, $1,085,000 and $1,345,000 for the years ended December 31, 2020, 2019 and 2018, respectively. The fair value of the unearned ESOP shares, using the closing quoted market price per share as of year-end, was approximately $7,746,000 and $12,245,000 as of December 31, 2020 and 2019, respectively. A summary of the ESOP share allocation as of December 31, 2020 and 2019 follows. 2020 2019 Shares allocated, beginning of year 303,395 284,290 Shares allocated during the year 35,708 35,708 Shares distributed during the year (21,082) (16,603) Allocated shares held by ESOP trust as of year end 318,021 303,395 Unallocated shares 276,733 312,441 Total ESOP shares 594,754 615,836 Salary Continuation Agreements As a supplement to its 401(k) retirement plan, the Bank has entered into nonqualified salary continuation agreements with three executive officers of the Bank. The Bank's 2007 salary continuation agreement with its Chief Executive Officer (“CEO”) provides that the executive will receive a stated annual benefit for a period of ten years upon retirement from the Bank. Benefits under the 2007 agreement vested over ten years, with 100% of this benefit having vested in 2017. Also, effective May 20, 2019 the Bank entered into a new salary continuation agreement with its CEO, which will provide the CEO with an additional stated annual benefit for a period of ten years upon his retirement after attaining age 65. The CEO is 100% vested in his normal retirement benefit under the 2019 agreement. In the event of early retirement, the Bank will pay the CEO his vested benefits, in a lump sum on the first day of the month following the separation from service. The Bank’s salary continuation agreement with its Chief Credit Officer ("CCO"), provides that the executive will be entitled to a stated annual benefit, distributed monthly, for a period of ten years upon retirement from the Bank after attaining age 65. Benefits under the agreement became fully vested in August 2019. In the event of early retirement, the Bank shall pay the executive his vested benefits in 120 equal monthly installments upon attaining age 65. In the event of a separation from service within 24 months following a change in control but prior to normal retirement age, the Bank shall distribute to the executive the vested portion of the annual benefit in a lump sum on the first day of the month following the separation from service. Benefits are subject to a six months delay to the extent required by applicable law. On May 20, 2019 the Bank also entered into salary continuation agreement with its Chief Operations Officer ("COO"). The agreement provides that the COO will be entitled to a stated annual benefit, distributed monthly for a period of ten years upon retirement from the Bank after attaining age 65. The retirement benefits vest over a period of ten years or until the executive officer reaches age 65. In the event of early retirement, the Bank will pay the executive officer his vested benefits in a lump sum on the first day of the month following each executive officer’s separation from service. In the event of a separation from service within 24 months following a change in control of the Bank prior to reaching age 65, the Bank shall pay him an amount equal to the greater of (i) his accrued benefits as of the end of the year immediately preceding the separation from service or a stated amount. This amount will be paid in a lump sum on the first day of the month following the separation from service. In August 2020, the Company's Chief Financial Officer ("CFO") resigned from his position with the Company and the Bank. Prior to the his resignation, the Bank was under a salary continuation agreement with the CFO. Under the terms of the agreement, the Company will pay his vested benefits of $36,000 in one lump sum on March 1, 2021. Britton & Koontz Capital Corporation had two salary continuation agreements funded in the amount of $465,000 at the time of acquisition in February 2014. Former executives of Britton & Koontz Capital Corporation or their beneficiaries are being paid over 15 years from the time of acquisition in February 2014. Louisiana Bancorp, Inc. also had two salary continuation agreements funded in the amount of $1,200,000 at the time of acquisition in September 2015. The Bank will pay former executives of Louisiana Bancorp, Inc. or their beneficiary within 10 years subsequent to the time of the acquisition in September 2015. SMB had a salary continuation agreement for an executive officer related to its acquisition of American Bank in 2007. The former executive of American Bank or his beneficiaries are being paid $358,000 over 14 years from the time of the SMB acquisition in December 2017. The Company had an outstanding liability totaling $3,331,000 and $3,227,000 as of December 31, 2020 and 2019, respectively, in connection with the agreements, which is included in accrued interest payable and other liabilities in the accompanying statements of financial condition.

Stock-based Payment Arrangement

Stock-based Payment Arrangements	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Stock-based Payment Arrangements	Stock-based Payment Arrangements The Company’s shareholders approved the 2009 Stock Option Plan (the “SOP”) and the 2009 Recognition and Retention Plan (the “RRP”) on May 12, 2009 to provide incentives and awards for directors, officers, and other key employees of the Company and its subsidiary. A maximum of 892,687 shares of Company common stock were reserved for issuance upon the exercise of options granted under the SOP. A total of 357,075 shares of the Company’s outstanding common stock, or 4% of total shares outstanding at the time the RRP was implemented, were approved for restricted stock awards under the RRP. The SOP and RRP expired February 2019. Expiration of the SOP and RRP did not affect any unvested options or awards granted. On May 6, 2014, the Company’s shareholders approved the 2014 Equity Incentive Plan (the “2014 Plan”). The 2014 Plan authorizes the granting of stock options, restricted stock units and other awards to directors, officers and other key employees. The aggregate number of shares of our common stock reserved and available for issuance pursuant to awards granted under the 2014 Plan is 350,000. These plans are administered by a committee appointed by the Board of Directors, which selects persons eligible to receive awards and determines the number of shares and/or options subject to each award, the terms, conditions and other provisions of the awards. In accordance with ASC 718, the Company adopted a fair value based method of accounting for employee stock compensation plans, whereby compensation cost is measured as of the grant date based on the fair value of the award and is recognized over the service period, which is usually the vesting period. Stock Option Plans The Company has issued stock options under the SOP and the 2014 Plan to directors, officers and other key employees. The option exercise price cannot be less than the fair value of the underlying common stock as of the date of the option grant and the maximum option term cannot exceed ten years. All stock options granted have been issued with vesting periods of five years with accelerated vesting provided under certain circumstances. As of December 31, 2020, options to acquire an aggregate of 204,540 shares were outstanding under the SOP and the 2014 Plan. The fair value of each option granted is estimated on the grant date using the Black-Scholes option pricing model. This model requires management to make certain assumptions, including the expected life of the option, the risk-free rate of interest, the expected volatility and the expected dividend yield. The following assumptions were made in estimating 2020 fair values: Expected dividends 3.95% Expected volatility 24.65% Risk-free interest rate 0.7% Expected term (in years) 6.5 As of December 31, 2020, there was $393,000 of unrecognized compensation cost related to stock options which is expected to be recognized over a period of 2.9 years. For the years ended December 31, 2020, 2019 and 2018, the Company recognized $216,000, $200,000 and $168,000, respectively, in compensation cost related to stock options, which is included in compensation and benefits expense in the accompanying consolidated statements of income. The following table represents stock option activity for the years indicated. Options Number of Options Weighted-Average Exercise Price Weighted-Average Grant Date Fair Value Weighted-Average Remaining Contractual Term (Years) Outstanding as of December 31, 2017 408,478 $ 16.64 $ 4.46 Granted 28,790 44.88 10.35 Exercised (83,348) 12.90 3.99 Forfeited (1,550) 28.34 5.59 Outstanding as of December 31, 2018 352,370 $ 19.78 $ 5.05 3.6 Granted 38,180 35.78 6.52 Exercised (198,786) 12.52 3.85 Forfeited (11,179) 33.13 6.79 Outstanding as of December 31, 2019 180,585 $ 30.33 $ 6.57 6.6 Granted 35,850 22.34 3.03 Exercised (4,625) 21.33 5.30 Forfeited (7,270) 29.47 5.58 Outstanding as of December 31, 2020 204,540 $ 29.17 $ 6.02 6.2 Exercisable as of December 31, 2018 258,319 $ 14.65 $ 4.27 2.0 Exercisable as of December 31, 2019 86,401 24.73 5.94 5.1 Exercisable as of December 31, 2020 113,988 27.07 6.16 4.8 Restricted Stock Plans The Company has issued restricted stock under the RRP to directors, officers and other key employees. During 2009, the Company purchased in the open market all shares required to fund the RRP at an average cost of $11.81 per share. As of December 31, 2020, the cost of such shares held by the RRP totaled $22,000, which is included in the Company’s unallocated common stock held by the RRP in the consolidated statements of financial condition. Under the 2014 Plan, the Company may issue restricted stock units, restricted stock awards, options and other awards. Awards under the RRP and the 2014 Plan may not be sold or otherwise transferred until certain restrictions have lapsed. The unearned compensation related to these awards is amortized to compensation expense over the five For the years ended December 31, 2020, 2019 and 2018, the Company recognized $573,000, $602,000 and $573,000, respectively, in compensation cost related to restricted stock and restricted stock units, which is included in compensation and benefits expense in the accompanying consolidated statements of income. The following table represents unvested restricted stock activity for the years indicated. Restricted Stock Number of Weighted-Average Grant Date Fair Value Balance, December 31, 2017 54,635 $ 29.26 Granted 16,345 44.88 Forfeited (195) 30.79 Released (15,405) 27.46 Balance, December 31, 2018 55,380 $ 34.36 Granted 19,145 35.84 Forfeited (4,336) 36.01 Released (18,711) 31.79 Balance, December 31, 2019 51,478 $ 35.73 Granted 17,305 22.19 Forfeited (5,183) 33.06 Released (19,247) 32.77 Balance, December 31, 2020 44,353 $ 32.04

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Earnings per common share was computed based on the following: Years Ended December 31, (dollars in thousands, except per share data) 2020 2019 2018 Numerator: Income applicable to common shares $ 24,765 $ 27,932 $ 31,590 Denominator: Weighted average common shares outstanding 8,674 9,074 9,069 Effect of dilutive securities: Restricted stock 9 12 20 Stock options 21 60 210 Weighted average common shares outstanding - assuming dilution 8,704 9,146 9,299 Earnings per common share $ 2.86 $ 3.08 $ 3.48 Earnings per common share - assuming dilution $ 2.85 $ 3.05 $ 3.40 Options on 134,714, 92,420 and 29,334 shares of common stock were not included in computing diluted earnings per share for the years ended December 31, 2020, 2019 and 2018, respectively, because the effect of these shares was anti-dilutive.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Certain directors and officers of the Company are customers of the Company. Loan transactions with directors, officers and employees are made on the same terms as those prevailing at the time for comparable loans to other persons. A summary of related party loan activity during 2020 follows. (dollars in thousands) Balance, beginning of year $ 6,215 New loans 2,694 Repayments, net (554) Balance, end of year $ 8,355 None of the related party loans were identified as impaired or exceeded 5% of shareholders’ equity for the years ended 2020 or 2019. Related party deposits totaled $6,610,000 and $13,887,000 as of December 31, 2020 and 2019, respectively.

Fair Value Measurements and Dis

Fair Value Measurements and Disclosures	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements and Disclosures	Fair Value Measurements and Disclosures The Company values its financial assets and liabilities measured at fair value in three levels as required by ASC 820, Fair Value Measurements and Disclosures . Under this guidance, fair value should be based on the assumptions market participants would use when pricing the asset or liability and establishes a fair value hierarchy that prioritizes the inputs used to develop those assumptions and measure fair value. The hierarchy requires companies to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: • Level 1 – Quoted prices in active markets for identical assets or liabilities. • Level 2 – Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies, and similar techniques that use significant unobservable inputs. An asset’s or liability’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Management reviews and updates the fair value hierarchy classifications of the Company’s assets and liabilities quarterly. Recurring Basis Investment Securities Available for Sale Fair values of investment securities available for sale are primarily measured using information from a third-party pricing service. This pricing service provides pricing information by utilizing evaluated pricing models supported with market data information. Standard inputs include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, benchmark securities, bids, offers, and reference data from market research publications. If quoted prices are available in an active market, investment securities are classified as Level 1 measurements. If quoted prices are not available in an active market, fair values were estimated primarily by the use of pricing models. Level 2 investment securities were primarily comprised of mortgage-backed securities issued by government agencies and U.S. government-sponsored enterprises. In certain cases, where there is limited or less transparent information provided by the Company’s third-party pricing service, fair value is estimated by the use of secondary pricing services or through the use of non-binding third-party broker quotes. Investment securities are classified within Level 3 when little or no market activity supports the fair value. Management primarily identifies investment securities which may have traded in illiquid or inactive markets by identifying instances of a significant decrease in the volume and frequency of trades, relative to historical levels, as well as instances of a significant widening of the bid-ask spread in the brokered markets. Investment securities that are deemed to have been trading in illiquid or inactive markets may require the use of significant unobservable inputs. For example, management may use quoted prices for similar investment securities in the absence of a liquid and active market for the investment securities being valued. As of December 31, 2020, management did not make adjustments to prices provided by the third-party pricing service as a result of illiquid or inactive markets. Derivative Assets and Liabilities The fair value of these derivative financial instruments is obtained from a third-party pricing service that uses widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. The analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves. The Company has determined that its derivative valuations are classified in Level 2 of the fair value hierarchy. The following tables present the balances of assets and liabilities measured on a recurring basis as of December 31, 2020 and 2019 aggregated by the level in the fair value hierarchy in which these measurements fall. (dollars in thousands) December 31, 2020 Level 1 Level 2 Level 3 Assets Available for sale securities: U.S. agency mortgage-backed $ 142,812 $ — $ 142,812 $ — Collateralized mortgage obligations 75,620 — 75,620 — Municipal bonds 28,011 — 28,011 — U.S. government agency 6,255 — 6,255 — Corporate bonds 2,054 — 2,054 — Total available for sale securities $ 254,752 $ — $ 254,752 $ — Derivative assets (1) $ 214 $ — $ 214 $ — Total $ 254,966 $ — $ 254,966 $ — Liabilities Derivative liabilities (1) $ 58 $ — $ 58 $ — (1) For more information, refer to Note 13 . (dollars in thousands) December 31, 2019 Level 1 Level 2 Level 3 Assets Available for sale securities: U.S. agency mortgage-backed $ 95,172 $ — $ 95,172 $ — Collateralized mortgage obligations 142,451 — 142,451 — Municipal bonds 16,005 — 16,005 — U.S. government agency 3,693 — 3,693 — Total $ 257,321 $ — $ 257,321 $ — The Company did not record any liabilities at fair value as of December 31, 2019 for which measurement of the fair value was made on a recurring basis. Nonrecurring Basis The Company records loans individually evaluated for impairment at fair value on a nonrecurring basis. A loan is considered impaired if it is probable the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Fair value is measured at the fair value of the collateral for collateral-dependent loans. For non-collateral-dependent loans, fair value is measured by present valuing expected future cash flows. Impaired loans are classified as Level 3 assets when measured using appraisals from third parties of the collateral less any prior liens and when there is no observable market price. Foreclosed assets and ORE are also recorded at fair value on a nonrecurring basis. Foreclosed assets are initially recorded at fair value less estimated costs to sell. ORE is recorded at the lower of its net book value or fair value at the date of transfer to ORE. The fair value of foreclosed assets and ORE is based on property appraisals and an analysis of similar properties available. As such, the Company classifies foreclosed and ORE assets as Level 3 assets. The Company has segregated all financial assets and liabilities that are measured at fair value on a nonrecurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date in the tables below. Fair Value Measurements Using (dollars in thousands) December 31, 2020 Level 1 Level 2 Level 3 Assets Loans individually evaluated for impairment $ 7,473 $ — $ — $ 7,473 Foreclosed assets and ORE 1,302 — — 1,302 Total $ 8,775 $ — $ — $ 8,775 Fair Value Measurements Using (dollars in thousands) December 31, 2019 Level 1 Level 2 Level 3 Assets Loans individually evaluated for impairment $ 7,365 $ — $ — $ 7,365 Foreclosed assets and ORE 4,156 — — 4,156 Total $ 11,521 $ — $ — $ 11,521 The following tables show significant unobservable inputs used in the fair value measurement of Level 3 assets. (dollars in thousands) Fair Value Valuation Technique Unobservable Inputs Range of Discounts Weighted Average Discount As of December 31, 2020 Loans individually evaluated for impairment $ 7,473 Third party appraisals and discounted cash flows Collateral values, market discounts and estimated costs to sell 3% - 87% 17 % Foreclosed assets and ORE $ 1,302 Third party appraisals, sales contracts, broker price opinions Collateral values, market discounts and estimated costs to sell 6% - 42% 11 % (dollars in thousands) Fair Value Valuation Technique Unobservable Inputs Range of Discounts Weighted Average Discount As of December 31, 2019 Loans individually evaluated for impairment $ 7,365 Third party appraisals and discounted cash flows Collateral values, market discounts and estimated costs to sell 0% - 84% 13 % Foreclosed assets and ORE $ 4,156 Third party appraisals, sales contracts, broker price opinions Collateral values, market discounts and estimated costs to sell 6% - 61% 14 % ASC 820, Fair Value Measurements and Disclosures , requires the disclosure of each class of financial instruments for which it is practicable to estimate. The fair value of a financial instrument is the current amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. ASC 820 excludes certain financial instruments and all non-financial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company. Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial statement element. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates included herein are based on existing on- and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business and the fair value of assets and liabilities that are not required to be recorded or disclosed at fair value like premises and equipment. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates. The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value: • The carrying value of cash and cash equivalents and interest-bearing deposits in banks approximate their fair value. • The fair value for investment securities is determined from quoted market prices when available. If a quoted market price is not available, fair value is estimated using third party pricing services or quoted market prices of securities with similar characteristics. • The carrying value of mortgage loans held for sale approximates their fair value. • The fair value of loans is estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturity. • The cash surrender value of BOLI approximates its fair value. • The fair value of customer deposits, excluding certificates of deposit, is the amount payable on demand. The fair value of fixed-maturity certificates of deposit is estimated by discounting the future cash flows using the rates currently offered for deposits of similar remaining maturities. • The fair value of other borrowings and long-term FHLB advances is estimated by discounting the future cash flows using the rates currently offered for borrowings of similar maturities. • The fair value of derivative assets and liabilities are obtained from a third-party pricing service that uses the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The fair value of off-balance sheet financial instruments as of December 31, 2020 and 2019 was immaterial. Fair Value Measurements at December 31, 2020 (dollars in thousands) Carrying Amount Total Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 187,952 $ 187,952 $ 187,952 $ — $ — Interest-bearing deposits in banks 349 349 349 — — Investment securities available for sale 254,752 254,752 — 254,752 — Investment securities held to maturity 2,934 2,996 — 2,996 — Mortgage loans held for sale 9,559 9,559 — 9,559 — Loans, net 1,946,991 1,957,705 — 1,950,232 7,473 Cash surrender value of BOLI 40,334 40,334 40,334 — — Derivative assets (1) 214 214 — 214 — Financial Liabilities Deposits $ 2,213,821 $ 2,216,002 $ — $ 2,216,002 $ — Other borrowings 5,539 6,224 — 6,224 — Long-term FHLB advances 28,824 29,662 — 29,662 — Derivative liabilities (1) 58 58 — 58 — (1) Derivative assets and liabilities are reported at fair value in accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively, in the Consolidated Statements of Financial Condition. Fair value Measurements at December 31, 2019 (dollars in thousands) Carrying Amount Total Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 39,847 $ 39,847 $ 39,847 $ — $ — Interest-bearing deposits in banks 449 449 449 — — Investment securities available for sale 257,321 257,321 — 257,321 — Investment securities held to maturity 7,149 7,194 — 7,194 — Mortgage loans held for sale 6,990 6,990 — 6,990 — Loans, net 1,696,493 1,690,308 — 1,682,943 7,365 Cash surrender value of BOLI 39,466 39,466 39,466 — — Financial Liabilities Deposits $ 1,820,975 $ 1,821,868 $ — $ 1,821,868 $ — Other borrowings 5,539 5,895 — 5,895 — Long-term FHLB advances 40,620 40,580 — 40,580 —

Condensed Parent Company Only F

Condensed Parent Company Only Financial Statements	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Condensed Parent Company Only Financial Statements	Condensed Parent Company Only Financial Statements Condensed financial statements of Home Bancorp, Inc. (parent company only) are shown below. The parent company has no significant operating activities. Condensed Balance Sheets December 31, 2020 and 2019 (dollars in thousands) 2020 2019 Assets Cash in bank $ 3,048 $ 6,400 Investment in subsidiary 313,476 305,340 Other assets 5,366 4,613 Total assets $ 321,890 $ 316,353 Liabilities $ 48 $ 24 Shareholders’ equity 321,842 316,329 Total liabilities and shareholders’ equity $ 321,890 $ 316,353 Condensed Statements of Income For the Years Ended December 31, 2020, 2019 and 2018 (dollars in thousands) 2020 2019 2018 Operating income Interest income $ — $ — $ — Dividend from subsidiary 18,200 21,000 — Total operating income 18,200 21,000 — Operating expenses Other expenses 234 192 219 Total operating expenses 234 192 219 Income (loss) before income tax benefit and equity in undistributed earnings of subsidiary 17,966 20,808 (219) Income tax benefit 49 40 44 Income (loss) before equity in undistributed earnings of subsidiary 18,015 20,848 (175) Undistributed earnings of subsidiary 6,750 7,084 31,765 Net income $ 24,765 $ 27,932 $ 31,590 Condensed Statements of Cash Flows For the Years Ended December 31, 2020, 2019 and 2018 (dollars in thousands) 2020 2019 2018 Cash flows from operating activities Net income $ 24,765 $ 27,932 $ 31,590 Adjustments to reconcile net income to net cash provided by operating activities: Non-cash compensation 1,261 1,613 1,799 Increase in accrued interest receivable and other assets (753) (1,118) (1,173) Undistributed earnings in subsidiary (6,750) (7,084) (31,765) Increase (decrease) in accrued expenses and other liabilities 24 14 (68) Net cash provided by operating activities 18,547 21,357 383 Cash flows from financing activities Proceeds from exercise of stock options 30 2,231 914 Payment of dividends on common stock (7,903) (7,898) (6,706) Issuance of stock under incentive plan (13) 157 70 Purchase of Company’s common stock (14,013) (15,445) (1,194) Net cash used in financing activities (21,899) (20,955) (6,916) Net change in cash and cash equivalents (3,352) 402 (6,533) Cash and cash equivalents at beginning of year 6,400 5,998 12,531 Cash and cash equivalents at end of year $ 3,048 $ 6,400 $ 5,998

Consolidated Quarterly Results

Consolidated Quarterly Results of Operations (unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Consolidated Quarterly Results of Operations (unaudited)	Consolidated Quarterly Results of Operations (unaudited) During the fourth quarter of 2020, we revised our estimate of losses on unfunded lending commitments. As a result, certain reclassifications have been made to prior period results to allow for comparability across quarterly periods during 2020. Refer to Note 2 for more information. (dollars in thousands, except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2020 Total interest income $ 25,249 $ 25,670 $ 25,842 $ 27,368 Total interest expense 3,926 3,253 2,570 2,169 Net interest income 21,323 22,417 23,272 25,199 Provision for loan losses 6,257 6,471 — — Net interest income after provision for loan losses 15,066 15,946 23,272 25,199 Noninterest income 3,358 3,103 3,794 4,050 Noninterest expense 15,416 15,453 16,116 15,996 Income before income taxes 3,008 3,596 10,950 13,253 Income tax expense 526 675 2,168 2,673 Net income $ 2,482 $ 2,921 $ 8,782 $ 10,580 Earnings per share – basic $ 0.27 $ 0.33 $ 1.01 $ 1.25 Earnings per share – diluted $ 0.27 $ 0.33 $ 1.01 $ 1.24 (dollars in thousands, except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2019 Total interest income $ 25,369 $ 25,921 $ 25,474 $ 25,444 Total interest expense 3,647 4,046 4,333 4,186 Net interest income 21,722 21,875 21,141 21,258 Provision for loan losses 390 765 1,146 713 Net interest income after provision for loan losses 21,332 21,110 19,995 20,545 Noninterest income 3,165 2,977 4,774 3,499 Noninterest expense 15,291 15,952 16,610 15,752 Income before income taxes 9,206 8,135 8,159 8,292 Income tax expense 1,316 1,555 1,303 1,686 Net income $ 7,890 $ 6,580 $ 6,856 $ 6,606 Earnings per share – basic $ 0.86 $ 0.72 $ 0.76 $ 0.74 Earnings per share – diluted $ 0.85 $ 0.72 $ 0.75 $ 0.73 (dollars in thousands, except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2018 Total interest income $ 24,725 $ 25,575 $ 26,109 $ 25,903 Total interest expense 2,220 2,239 2,599 3,248 Net interest income 22,505 23,336 23,510 22,655 Provision for loan losses 964 581 786 1,612 Net interest income after provision for loan losses 21,541 22,755 22,724 21,043 Noninterest income 3,482 3,345 3,341 3,279 Noninterest expense 15,590 16,322 15,696 15,617 Income before income taxes 9,433 9,778 10,369 8,705 Income tax expense 1,970 2,002 2,107 616 Net income $ 7,463 $ 7,776 $ 8,262 $ 8,089 Earnings per share – basic $ 0.83 $ 0.85 $ 0.91 $ 0.89 Earnings per share – diluted $ 0.81 $ 0.83 $ 0.89 $ 0.87

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company, the Bank and HB Investment Fund I, LLC. All significant intercompany balances and transactions have been eliminated in consolidation.
Subsequent Events	Subsequent EventsThe Company has evaluated subsequent events for potential recognition and disclosure through the date of filing for this Annual Report on Form 10-K with the U.S. Securities and Exchange Commission.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term include, but are not limited to, the determination of the allowance for credit losses, income taxes, the valuation of foreclosed assets and ORE, goodwill and other intangible assets, acquisition accounting valuations and valuation of share-based compensation.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash on hand, due from banks and interest-bearing deposits with the FHLB. The Company considers all highly liquid debt instruments with original maturities of three months or less (excluding interest-bearing deposits in banks) to be cash equivalents. The Bank may be required to maintain cash reserves with the Federal Reserve Bank. The requirement is dependent upon the Bank’s cash on hand or noninterest-bearing balances. There was no reserve requirement as of December 31, 2020 or 2019.
Investment Securities	Investment Securities The Company follows the guidance under the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 320, Investments – Debt and Equity Securities . This standard addresses the accounting and reporting for investments in equity securities that have readily determinable fair values and for all investments in debt securities. Under the topic, investment securities, which the Company both positively intends and has the ability to hold to maturity, are classified as held to maturity and carried at amortized cost. Investment securities that are acquired with the intention of being resold in the near term are classified as trading securities under ASC 320 and are carried at fair value, with unrealized holding gains and losses recognized in current earnings. The Company did not hold any securities for trading purposes at, or during the years ended, December 31, 2020 or 2019. Securities not meeting the criteria of either trading securities or held to maturity are classified as available for sale and are carried at fair value. Unrealized holding gains and losses for these securities are recognized, net of related income tax effects, in the Consolidated Statements of Comprehensive Income. Interest income earned on securities either held to maturity or available for sale is included in current earnings, including the amortization of premiums and the accretion of discounts using the interest method. Amortization of premiums and accretion of discounts are recognized in interest income using the effective interest method. Premiums that exceed the amount repayable by the issuer at the next call date are amortized to the next call date. Other premiums and discounts are amortized (accreted) over the estimated lives of the securities. The gain or loss realized on the sale of securities classified as available for sale or held to maturity, as determined using the specific identification method for determining the cost of the securities sold, is computed with reference to its amortized cost and is also included in current earnings. On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses, which introduced a new model known as CECL . ASC 326 requires expected credit related losses for available for sale debt securities to be recorded through an allowance for credit losses, while non-credit related losses or declines in fair value continue to be recognized through other comprehensive income ("OCI"). Under the new guidance, the Company is also required to evaluate held to maturity debt securities for expected credit losses. For more information on the impact to the Consolidated Financial Statements, refer to the " R ecent Accounting Pronouncements " section of this note. For reporting periods beginning on and after January 1, 2020 and the adoption of ASC 326: We evaluate our investment securities portfolio for credit-related impairment at least quarterly, and more frequently when economic and market conditions warrant such evaluations. Consideration is given to numerous factors including, but not limited to, the extent to which the fair value is less than the amortized cost basis; adverse conditions causing changes in the financial condition of the issuer of the security or underlying loan guarantors; changes to the rating of the security by a rating agency; and the Company’s intent to sell a security or whether it is more likely than not the Company will be required to sell the security before the recovery of its amortized cost, which may extend to maturity. The Company performs a process to determine whether declines in the fair value of securities has resulted from credit losses or other factors. This process involves evaluating each security for impairment by monitoring credit performance, collateral type, collateral geography, bond credit support, loan-to-value ratios, credit scores, loss severity levels, pricing levels, downgrades by rating agencies, cash flow projections and other factors as indicators of potential credit issues. If this evaluation indicates the existence of credit losses, the Company compares the present value of cash flows expected to be collected from the security with the amortized cost basis. If the present value of expected cash flows is less than the amortized cost basis, an allowance for credit losses is recorded, limited by the amount that the fair value of the security is less than its amortized cost. Subsequent changes in the allowance for credit losses on securities are recorded with a corresponding provision for credit losses on the Consolidated Statement of Income. If the Company intends to sell the debt security or it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis, the security is written down to fair value against the allowance for credit losses, with any additional impairment reported on the Consolidated Statement of Income. The Company applies the practical expedient that permits the exclusion of the accrued interest receivable balance from amortized cost basis of financing receivables. For reporting periods prior to January 1, 2020 and the adoption of ASC 326: The Company reviewed investment securities for other-than-temporary impairment quarterly. Impairment was considered to be other-than-temporary if it was likely that all amounts contractually due would not be received for debt securities and when there was no positive evidence indicating that an investment’s carrying amount was recoverable in the near term for equity securities. When a decline in the fair value of available for sale and held to maturity securities below cost was deemed to be credit related, a charge for other-than-temporary impairment was included in earnings as “Other-than-temporary impairment of securities”. The decline in fair value attributed to non-credit related factors was recognized in other comprehensive income and a new cost basis for the security was established. The new cost basis was not changed for subsequent recoveries in fair value. In evaluating whether impairment was temporary or other-than-temporary, the Company considered, among other things, the time period the security was in an unrealized loss position; the financial condition of the issuer and its industry; recommendations of investment advisors; economic forecasts; market or industry trends; changes in tax laws, regulations or other governmental policies significantly affecting the issuer; any downgrades from rating agencies; and any reduction or elimination of dividends. The Company’s intent and ability to hold a security for a period of time sufficient to allow for any anticipated recovery in fair value was also considered.
Loans Held for Sale	Loans Held for Sale The Company sells mortgage loans and loan participations for an amount equal to the principal amount of loans or participations with yields to investors based upon current market rates. Realized gains and losses related to loan sales are included in noninterest income. The Company allocates the cost to acquire or originate a mortgage loan between the loan and the right to service the loan if it intends to sell or securitize the loan and retain servicing rights. In addition, the Company periodically assesses capitalized mortgage servicing rights for impairment based on the fair value of such rights. To the extent that temporary impairment exists, write-downs are recognized in current earnings as an adjustment to the corresponding valuation allowance. Permanent impairment is recognized through a write-down of the asset with a corresponding reduction in the valuation allowance. For purposes of performing its impairment evaluation, the portfolio is stratified on the basis of certain risk characteristics, including loan type and interest rates. Capitalized servicing rights are amortized over the period of, and in proportion to, estimated net servicing income, which considers appropriate prepayment assumptions.
Loans	Loans The following describes the distinction between originated and acquired loans and certain significant accounting policies relevant to each category. Originated Loans Originated loans are carried net of discounts on loan originations and are amortized using the level yield interest method over the remaining contractual life of the loan. Nonrefundable loan origination fees, net of direct loan origination costs, are deferred and recognized over the life of the loan as an adjustment of yield using the interest method. Interest on loans receivable is accrued as earned using the interest method over the life of the loan. Interest on loans deemed uncollectible is excluded from income. The accrual of interest is discontinued and reversed against current income, with certain limited exceptions, once loans become more than 90 days past due or earlier if conditions warrant. The past due status of loans is determined based on the contractual terms. When a loan is placed on nonaccrual status, previously accrued and uncollected interest is charged against interest income on loans. Interest payments are applied to reduce the principal balance on nonaccrual loans. Loans are returned to accrual status when all past due payments are received in full and future payments are probable. Third party property valuations are obtained at the time of origination for real estate secured loans. When a determination is made that a loan has deteriorated to the point of being deemed a criticized or classified loan, updated valuations may be ordered to help determine if there is impairment, which may lead to a recommendation for partial charge off or appropriate allowance allocation. Property valuations are ordered through, and reviewed by, the Company’s Appraisal and Review Department. The Company typically orders an “as is” valuation for collateral property if the loan is in a criticized loan classification. Loans, or portions of loans, are charged off in the period that such loans, or portions thereof, are deemed uncollectible. The collectability of individual loans is determined through an estimate of the fair value of the underlying collateral and/or assessment of the financial condition and repayment capacity of the borrower. Acquired Loans Acquired loans at December 31, 2020 and 2019 are those associated with our acquisitions of Statewide Bank, GS Financial Corporation, Britton & Koontz Capital Corporation, Louisiana Bancorp, Inc. and SMB. These loans were recorded at estimated fair value at the acquisition date with no carryover of the related allowance for loan losses. The acquired loans were segregated between those considered to be performing and those with evidence of credit deterioration (purchased credit impaired or “PCI”), and then further segregated into loan pools designed to facilitate the development of expected cash flows. The fair value estimate for each pool of acquired performing and PCI loans was based on the estimate of expected cash flows, both principal and interest, from that pool, discounted at prevailing market interest rates. The difference between the fair value of an acquired loan pool and the contractual amounts due at the acquisition date (the “fair value discount”) is accreted into income over the estimated life of the pool. On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses, which introduced a new model known as CECL and amended the accounting guidance for purchased financial assets. For more information on the impact to the Consolidated Financial Statements, refer to the " Recent Accounting Pronouncements " section of this note. For reporting periods beginning on and after January 1, 2020 and the adoption of ASC 326: Management estimates the allowance for credit losses for acquired loans under the same methodology as originated loans. Changes in the allowance for credit losses for acquired loans are recognized through the provision for loan losses and the provision for credit losses on unfunded lending commitments. ASC 326 replaced the guidance for PCI loans with the concept of purchased credit deteriorated ("PCD"). For reporting periods beginning on and after January 1, 2020, PCI loans have been re-classified as PCD loans. For PCD loans, the Company applied the guidance under ASC 326 using the prospective transition approach. As a result, the Company adjusted the amortized cost basis of the PCD loans to reclassify $1.0 million of purchase discount to the allowance for loan losses on January 1, 2020. The Company applied the guidance under ASC 326 using the modified retrospective approach for all non-PCD assets, which resulted in an increase in the ACL and a corresponding decrease to retained earnings at the adoption date. PCD loans, under prior accounting policies, were excluded from nonperforming loans because they continued to earn interest income from the accretable yield at the pool level regardless of their status as past due or otherwise not in compliance with their contractual terms. With the adoption of ASC 326, the pools were discontinued and performance is based on contractual terms for individual loans. For reporting periods prior to January 1, 2020 and the adoption of ASC 326: Management estimated the ALL for acquired performing or non-PCI loans using a methodology similar to that used for originated loans. The allowance determined for each loan pool was compared to the remaining fair value discount for that pool. If the allowance amount calculated under the Company’s methodology was greater than the Company’s remaining discount, the additional amount called for was added to the reported allowance through a provision for loan losses. If the allowance amount calculated under the Company’s methodology was less than the Company’s recorded discount, no additional allowance or provision was recognized. Actual losses first reduced any remaining nonaccretable discount for the loan pool. Once the nonaccretable discount was fully depleted, losses were applied against the allowance established for that pool. Acquired performing or non-PCI loans were placed on nonaccrual status and were considered and reported as nonperforming or past due using the same criteria applied to the originated portfolio. The excess of cash flows expected to be collected from a PCI loan pool over the pool’s estimated fair value at acquisition was referred to as the accretable yield and was recognized in interest income using an effective yield method over the remaining life of the pool. Each pool of PCI loans was accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. Management estimated cash flows expected to be collected on each PCI loan pool periodically. If the present value of expected cash flows for a pool was less than its carrying value, an impairment was recognized by an increase in the ALL and a charge to the provision for loan losses. If the present value of expected cash flows for a pool was greater than its carrying value, any previously established ALL was reversed and any remaining difference increased the accretable yield, which was taken into interest income over the remaining life of the loan pool. PCI loans were generally not subject to individual evaluation for impairment and were not reported with impaired loans, even if they otherwise qualified for such treatment .
Allowance for Credit Losses	Allowance for Credit Losses On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses . The new standard significantly changed the impairment model for most financial assets that are measured at amortized cost, including off-balance sheet credit exposures, from an incurred loss model to an expected loss model. Refer to the " Recent Accounting Pronouncements " section of this note for more information on the impact to the Consolidated Financial Statements. For all reporting periods: Changes in the allowance for credit losses, which includes the allowance for loan losses and the reserve for unfunded lending commitments, are charged to current operations. Loans that are determined to be uncollectible are charged-off against the allowance for credit losses once that determination is made. While management uses available information to make allowance evaluations, adjustments to the allowance may be necessary based on changes in economic and other conditions or changes in accounting guidance. The OCC, as an integral part of its examination processes, periodically reviews the allowance for credit losses. The OCC may require the recognition of adjustments to the allowance for credit losses based on its judgment of information available to it as of the time of its examinations. To the extent the OCC’s estimates differ from management’s estimates, additional provisions to the allowance for credit losses may be required as of the time of its examination. As part of the Bank’s risk management program, an independent review is performed on the loan portfolio, which supplements management’s assessment of the loan portfolio and the allowance for credit losses. The result of the independent review is reported directly to the Audit Committee of the Board of Directors. For reporting periods beginning on and after January 1, 2020 and the adoption of ASC 326: Under ASC 326, the allowance for credit losses ("ACL") is measured on a pool basis when similar risk characteristics exist and is maintained at an amount which management believes is a current estimate of the expected credit losses for the full life of the relevant pool of loans and related unfunded lending commitments. The Company applies the practical expedient that permits the exclusion of the accrued interest receivable balance from amortized cost basis of financing receivables when measuring credit losses under CECL. The Company's CECL calculation estimates loan losses using the discounted cash flow method for all loan pools, except for the Company's credit card portfolio. Loan losses for the credit card portfolio are estimated using the remaining life method due to the limited complexity and size of this portfolio. The discounted cash flow analysis uses loan-level term information (e.g., maturity date, payment amount, interest rate, etc.) and pool-level assumptions (e.g., default rates, prepayment speeds, etc.) to produce expected future cash flows for the full life of every loan in the pool. The expected future cash flows are discounted and results are then aggregated to produce a net present value of the pool and ultimately the ACL requirement for the pool. The remaining life method applies a loss rate to a given pool of loans over the estimated remaining life of the given pool. The remaining life of the pool is based on historical data. The loss rates computed for each pool and expected pool-level funding rates are applied to the related unfunded lending commitments to calculate an ACL on unfunded amounts. For each pool of loans, management also evaluates and applies qualitative adjustments to the calculated ACL based on several factors, including, but not limited to, changes in current and expected future economic conditions, changes in industry experience and loan concentrations, changes in the volume and severity of nonperforming assets, changes in lending policies and personnel and changes in the competitive and regulatory environment of the banking industry. During 2020, the ongoing effects of COVID-19 on the U.S. economy has been an additional consideration when measuring the ACL. Loans that do not share similar risk characteristics are individually evaluated and are excluded from the pooled loan analysis. Individually analyzed loans generally include larger (i.e., loans with balances of $250,000 or greater) commercial real estate loans, multi-family residential loans, construction and land loans, commercial and industrial loans and other loans as deemed appropriate by management for which it is probable that all amounts due under the contractual terms of the loan will not be collected. The ACL for loans that are individually evaluated is based on a comparison of the recorded investment in the loan with either the expected cash flows discounted using the loan’s original effective interest rate, observable market price for the loan or the fair value of the collateral underlying certain collateral-dependent loans. The Company has identified the following portfolio segments based on the risk characteristics described in the table for its pooled loan analysis under ASC 326: Loan Pool Risk Characteristics One- to four-family first mortgage This category consists of loans secured by first liens on residential real estate. The performance of these loans may be adversely affected by, among other factors, unemployment rates, local residential real estate market conditions and the interest rate environment. Generally, these loans are for longer terms than home equity loans and lines. Home equity loans and lines This category consists of loans secured by first and junior liens on residential real estate. The performance of these loans may be adversely affected by, among other factors, unemployment rates, local residential real estate market conditions and the interest rate environment. Commercial real estate ("CRE") This category consists of loans primarily secured by office and industrial buildings, warehouses, retail shopping facilities and various special purpose properties, including hotels and restaurants. The performance of CRE loans may be adversely affected by, among other factors, conditions specific to the relevant industry, the real estate market for the property type and geographic region where the property or borrower is located. Construction and land ("C&D") This category consists of loans to finance the ground-up construction and/or improvement of residential and commercial properties and loans secured by land. The performance of C&D loans is generally dependent upon the successful completion of improvements and/or land development for the end user, the sale of the property to a third party, or a secondary source of cash flow from the owners. The successful completion of planned improvements and development may be adversely affected by changes in the estimated property value upon completion of construction, projected costs and other conditions leading to project delays. Multi-family residential This category consists of loans secured by apartment or residential buildings with five or more units used to accommodate households on a temporary or permanent basis. The performance of multi-family loans is generally dependent on the receipt of rental income from the tenants who occupy the subject property. The occupancy rate of the subject property and the ability of the tenants to pay rent may be adversely affected by the location of the subject property and local economic conditions. Commercial and industrial ("C&I") This category consists of secured and unsecured loans to purchase capital equipment, agriculture operating loans and other business loans for working capital and operating purposes. Secured loans are primarily secured by accounts receivable, inventory and other business assets. The performance of C&I loans may be adversely affected by, among other factors, conditions specific to the relevant industry, fluctuations in the value of the collateral and individual performance factors related to the borrower. Consumer This category consists of loans to individuals for household, family and other personal use. The performance of these loans may be adversely affected by national and local economic conditions, unemployment rates and other factors affecting the borrower's income available to service the debt. Credit cards This category consists of unsecured revolving lines of credit for personal and commercial use. Credit card loans are generally smaller in size and are less complex relative to larger loan categories. Due to their unsecured nature, historical loss rates for credit card loans are generally higher than the loss rates on loans secured by real estate. For reporting periods prior to January 1, 2020 and the adoption of ASC 326: The allowance for loan losses was maintained at an amount which management believed covered the reasonably estimable and probable losses on such portfolio. The allowance for loan losses was comprised of specific and general reserves. The Company determined specific reserves based on the provisions of ASC 310, Receivables . The Company’s allowance for loan losses included a measure of impairment related to those loans specifically identified for evaluation under the topic. This measurement was based on a comparison of the recorded investment in the loan with either the expected cash flows discounted using the loan’s original effective interest rate, observable market price for the loan or the fair value of the collateral underlying certain collateral-dependent loans. General reserves were based on management’s evaluation of many factors, including current economic trends, industry experience, historical loss experience (generally three years), industry loan concentrations, the borrowers’ abilities to repay and repayment performance, probability of foreclosure and estimated collateral values. In addition to these factors, management also considered the risk factors described in the table above for each segment of the loan portfolio when determining general reserves.
Office Properties and Equipment	Office Properties and Equipment Office properties and equipment are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method with rates based on the estimated useful lives of the individual assets, which range from three On January 1, 2019, the Company adopted the amended provisions under ASC 842, Leases. Under the amended guidance, the Company recognizes lease assets and liabilities for both operating and capital leases. For lessees, lease assets represent the right to use leased assets for the relevant lease term and lease liabilities that represent the obligation to make lease payments. At December 31, 2020 and 2019, the Company's right-of-use assets, net of amortization, were $4,566,000 and $4,544,000, respectively. The Company's lease liabilities were $4,695,000 and $4,588,000 at December 31, 2020 and 2019, respectively. The Company reports its right-of-use assets and liabilities within accrued interest receivable and other assets and accrued interest payable and other liabilities on the Consolidated Statements of Financial Condition.
Cash Surrender Value of Bank-owned Life Insurance	Cash Surrender Value of Bank-Owned Life Insurance Life insurance contracts represent single premium life insurance contracts on the lives of certain officers of the Bank. The Bank is the beneficiary of these policies. These contracts are reported at their cash surrender value and changes in the cash surrender value are included in noninterest income.
Intangible Assets	Intangible Assets Intangible assets consist of goodwill, core deposit intangibles and mortgage servicing rights. Goodwill and core deposit intangibles are presented together on the Consolidated Statements of Financial Condition. Mortgage servicing rights are recorded in accrued interest receivable and other assets on the Consolidated Statements of Financial Condition. Goodwill represents the excess purchase price over the fair value of net assets acquired in business acquisitions. Goodwill is not amortized but rather is evaluated for impairment at least annually. Core deposit intangibles represent the estimated value related to customer deposit relationships assumed in the Company’s acquisitions. Core deposit intangibles are being amortized over nine
Foreclosed Assets and ORE	Foreclosed Assets and ORE Foreclosed assets and ORE includes real property and other assets that have been acquired as a result of foreclosure, and real property no longer used in the Bank's business. Foreclosed assets are recorded at fair value less estimated selling costs at the date acquired or upon receiving new property valuations. Write-downs from cost to fair value at the date of foreclosure are charged against the allowance for credit losses. ORE is recorded at the lower of its net book value or fair value at the date of transfer to ORE. Costs relating to the development and improvement of foreclosed assets and ORE are capitalized, and costs relating to holding and maintaining foreclosed assets and ORE are expensed. Valuations are performed periodically and a charge to operations is recorded if the carrying value of a property exceeds its fair value less selling costs. Generally, the Company appraises foreclosed assets and ORE at the time of foreclosure or transfer to ORE and at least every 12 months following the foreclosure or transfer to ORE. When the foreclosed property is sold, a gain or loss is recognized on the sale for the difference between the sales proceeds and the carrying amount of the property. Financed sales of foreclosed property are accounted for in accordance with ASC 610, Subtopic 20, Gains and losses from the derecognition of nonfinancial assets. The Company had $1,302,000 and $4,156,000 of foreclosed assets and ORE as of December 31, 2020 and 2019, respectively. Foreclosed assets and ORE are recorded in accrued interest receivable and other assets on the Consolidated Statements of Financial Condition.
Derivatives and Hedging Activities	Derivatives and Hedging Activities As required by ASC 815, the Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. In accordance with the FASB’s fair value measurement guidance (in ASU 2011-04), the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.
Other Investments	Other InvestmentsOther investments are carried at cost and consist of Federal Reserve Bank ("FRB") stock, Federal Home Loan Bank ("FHLB") stock, qualified investments under the Community Reinvestment Act ("CRA"), an investment in a Small Business Investment Company ("SBIC"), and a New Market Tax Credit ("NMTC") investment. The Company's other investments are not held for sale and do not have readily determinable fair values. As a member of the FRB and the FHLB, the Company is required to hold stock in the FRB and the FHLB. The FRB stock may not be sold or pledged as collateral. The FHLB stock is pledged as collateral for outstanding FHLB advances and its transfer is substantially restricted. The Company's CRA investments include investments in funds and membership shares that fund community development in low- and moderate-income areas. The Company's SBIC investment is guaranteed by the Small Business Association.
Shareholders' Equity	Shareholders’ Equity Provisions of the Louisiana Business Corporation Act eliminate the concept of treasury stock and provide that shares reacquired by a company are to be treated as authorized but unissued shares. For the years ended December 31, 2020, 2019 and 2018, the cost of shares repurchased by the Company have been allocated to common stock, additional paid-in capital, and retained earnings.
Transfer of Financial Assets	Transfer of Financial Assets Transfers of financial assets are accounted for as sales when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, the transferee obtains the right, free of conditions that constrain it from taking advantage of that right, to pledge or exchange the transferred assets and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before maturity.
Salary Continuation Agreements	Salary Continuation Agreements The Company records the expense associated with its salary continuation agreements over the service periods of the persons covered under these agreements.
Revenue Recognition	Revenue Recognition In addition to lending and related activities, the Company offers various services to customers that generate revenue, certain of which are governed by ASC 606, Revenue from Contracts with Customers . The guidance under ASC 606 was effective for annual and interim reporting periods beginning after December 15, 2017. The transition to the accounting guidance under ASC 606 did not have a material impact on the Consolidated Financial Statements. The Company's services that fall within the scope of ASC 606 are presented within noninterest income and include service charges and fees, brokerage fees, and other transaction-based fees. Revenue is recognized when the transactions occur or as services are performed over primarily monthly or quarterly periods. Payment is typically received in the period the transactions occur. Fees may be fixed or, where applicable, based on a percentage of transaction size.
Income Taxes	Income Taxes The Company accounts for income taxes under the liability method. Deferred tax assets and liabilities are recorded for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Future tax benefits are recognized to the extent that realization of such benefits is more likely than not. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which the assets and liabilities are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income taxes during the period that includes the enactment date. In the event the future tax consequences of differences between the financial reporting bases and the tax bases of the Company’s assets and liabilities results in deferred tax assets, an evaluation of the probability of being able to realize the future benefits indicated by such asset is required. A valuation allowance is provided for the portion of the deferred tax asset when it is more likely than not that some or all of the deferred tax asset will not be realized. In assessing the realizability of the deferred tax assets, management considers the scheduled reversals of deferred tax liabilities, projected future taxable earnings and tax planning strategies. The income tax benefit or expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. A tax position is recognized as a benefit only if it is more likely than not that the tax position would be sustained in a tax examination, with a tax examination presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50 percent likely of being realized on examination. For tax positions not meeting the more likely than not test, no tax benefit is recorded. The Company recognizes interest and penalties accrued related to unrecognized tax benefits, if applicable, in noninterest expense. During the years ended December 31, 2020, 2019 and 2018, the Company did not recognize any interest or penalties in its financial statements and did not record an accrued liability for interest or penalty payments. Investments that generate investment tax credits are accounted for under the deferral method. Under the deferral method, the allowable investment credit is recognized as a reduction in income tax expense over the life of the acquired investment.
Stock-based Compensation Plans	Stock-based Compensation Plans The Company has issued stock options under the 2009 Stock Option Plan and the 2014 Equity Incentive Plan to directors, officers and other key employees. In accordance with the requirements of ASC 718, Compensation – Stock Compensation , the Company has adopted a fair value based method of accounting for employee stock compensation plans, whereby compensation cost is measured as of the grant date based on the fair value of the award and is recognized over the service period, which is usually the vesting period. The Company has issued restricted stock under the 2009 Recognition and Retention Plan and restricted stock units under the 2014 Equity Incentive Plan to directors, officers and other key employees. Awards under the plans may not be sold or otherwise transferred until certain restrictions have lapsed. The unearned compensation related to these awards is amortized to compensation expense over the service period, which is usually the vesting period. The total share-based compensation expense for these awards is determined based on the market price of the Company’s common stock as of the date of grant applied to the total number of shares granted and is amortized over the vesting period.
Earnings Per Share	Earnings Per Share Earnings per share represents income available to common shareholders divided by the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflects additional common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustment to income that would result from the assumed issuance.
Comprehensive Income	Comprehensive IncomeGAAP generally requires that recognized revenues, expenses, gains and losses be included in net earnings. Although certain changes in assets and liabilities, such as unrealized gains and losses on available for sale securities and cash flow hedges, are reported as a separate component of the equity section of the balance sheets, such items, along with net earnings, are components of comprehensive income.
Loss Contingency Disclosure	Loss Contingency Disclosure Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there are such matters that will have a material effect on the financial statements.
Reclassifications	Reclassifications Certain reclassifications have been made to prior period balances to conform to the current period presentation.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Standards Adopted in 2020 On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses, which introduced a new model known as CECL. ASC 326 requires financial assets measured on an amortized cost basis, including loans and held to maturity debt securities, to be presented at an amount net of an allowance for credit losses ("ACL"), which reflects expected losses for the full life of the financial asset. Unfunded lending commitments are also within the scope of this amendment. Under former GAAP, credit losses were not recognized until the occurrence of the loss was probable and entities, in general, did not attempt to estimate credit losses for the full life of financial assets. ASC 326 also amended the accounting model for purchased financial assets and replaced the guidance for PCI financial assets with the concept of PCD financial assets. For non-PCD assets, the CECL estimate is recognized through an ACL and provision for credit losses. For PCD assets, the CECL estimate is recognized through an ACL with an offset to the cost basis of the PCD asset at the date of acquisition. Subsequent changes in the ACL for PCD assets are recognized through a provision for loan losses. The financial assets formerly classified as PCI are now classified as PCD assets under ASC 326. Under former GAAP, an allowance and related provision expense was only recorded for purchased financial assets if the amount of estimated probable losses exceeded the fair value discount for the financial assets. In addition, ASC 326 requires expected credit related losses for available for sale debt securities to be recorded through an ACL, while non-credit related losses will continue to be recognized through OCI. The guidance under ASC 326 had no impact on the Company's available for sale debt securities at January 1, 2020 or December 31, 2020. Management determined that the declines in the fair value of these securities at such dates were not attributable to credit losses. The Company’s held to maturity debt securities are also required to utilize the CECL approach to estimate expected credit losses. Under ASC 326, the Company did not expect credit losses and recorded no ACL for its held to maturity debt securities at January 1, 2020 or December 31, 2020.
Fair Value Measurements and Disclosures	The Company values its financial assets and liabilities measured at fair value in three levels as required by ASC 820, Fair Value Measurements and Disclosures . Under this guidance, fair value should be based on the assumptions market participants would use when pricing the asset or liability and establishes a fair value hierarchy that prioritizes the inputs used to develop those assumptions and measure fair value. The hierarchy requires companies to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: • Level 1 – Quoted prices in active markets for identical assets or liabilities. • Level 2 – Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies, and similar techniques that use significant unobservable inputs. An asset’s or liability’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Management reviews and updates the fair value hierarchy classifications of the Company’s assets and liabilities quarterly.
Receivables	Nonrecurring Basis The Company records loans individually evaluated for impairment at fair value on a nonrecurring basis. A loan is considered impaired if it is probable the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Fair value is measured at the fair value of the collateral for collateral-dependent loans. For non-collateral-dependent loans, fair value is measured by present valuing expected future cash flows. Impaired loans are classified as Level 3 assets when measured using appraisals from third parties of the collateral less any prior liens and when there is no observable market price. Foreclosed assets and ORE are also recorded at fair value on a nonrecurring basis. Foreclosed assets are initially recorded at fair value less estimated costs to sell. ORE is recorded at the lower of its net book value or fair value at the date of transfer to ORE. The fair value of foreclosed assets and ORE is based on property appraisals and an analysis of similar properties available. As such, the Company classifies foreclosed and ORE assets as Level 3 assets.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Schedule of Portfolio Segments by Risk Characteristics	The Company has identified the following portfolio segments based on the risk characteristics described in the table for its pooled loan analysis under ASC 326: Loan Pool Risk Characteristics One- to four-family first mortgage This category consists of loans secured by first liens on residential real estate. The performance of these loans may be adversely affected by, among other factors, unemployment rates, local residential real estate market conditions and the interest rate environment. Generally, these loans are for longer terms than home equity loans and lines. Home equity loans and lines This category consists of loans secured by first and junior liens on residential real estate. The performance of these loans may be adversely affected by, among other factors, unemployment rates, local residential real estate market conditions and the interest rate environment. Commercial real estate ("CRE") This category consists of loans primarily secured by office and industrial buildings, warehouses, retail shopping facilities and various special purpose properties, including hotels and restaurants. The performance of CRE loans may be adversely affected by, among other factors, conditions specific to the relevant industry, the real estate market for the property type and geographic region where the property or borrower is located. Construction and land ("C&D") This category consists of loans to finance the ground-up construction and/or improvement of residential and commercial properties and loans secured by land. The performance of C&D loans is generally dependent upon the successful completion of improvements and/or land development for the end user, the sale of the property to a third party, or a secondary source of cash flow from the owners. The successful completion of planned improvements and development may be adversely affected by changes in the estimated property value upon completion of construction, projected costs and other conditions leading to project delays. Multi-family residential This category consists of loans secured by apartment or residential buildings with five or more units used to accommodate households on a temporary or permanent basis. The performance of multi-family loans is generally dependent on the receipt of rental income from the tenants who occupy the subject property. The occupancy rate of the subject property and the ability of the tenants to pay rent may be adversely affected by the location of the subject property and local economic conditions. Commercial and industrial ("C&I") This category consists of secured and unsecured loans to purchase capital equipment, agriculture operating loans and other business loans for working capital and operating purposes. Secured loans are primarily secured by accounts receivable, inventory and other business assets. The performance of C&I loans may be adversely affected by, among other factors, conditions specific to the relevant industry, fluctuations in the value of the collateral and individual performance factors related to the borrower. Consumer This category consists of loans to individuals for household, family and other personal use. The performance of these loans may be adversely affected by national and local economic conditions, unemployment rates and other factors affecting the borrower's income available to service the debt. Credit cards This category consists of unsecured revolving lines of credit for personal and commercial use. Credit card loans are generally smaller in size and are less complex relative to larger loan categories. Due to their unsecured nature, historical loss rates for credit card loans are generally higher than the loss rates on loans secured by real estate.
Accounting Standards Update and Change in Accounting Principle	The results for reporting periods beginning on or after January 1, 2020 are presented under ASC 326, while prior period amounts continue to be reported in accordance with previously applicable GAAP. The following table illustrates the impact of ASC 326. (dollars in thousands) December 31, 2019 ASC 326 Adoption Impact January 1, 2020 Allowance for credit losses One- to four-family first mortgage $ 2,715 $ 986 $ 3,701 Home equity loans and lines 1,084 (1) 1,083 Commercial real estate 6,541 1,974 8,515 Construction and land 2,670 519 3,189 Multi-family residential 572 (245) 327 Commercial and industrial 3,694 1,243 4,937 Consumer 592 157 749 Total allowance for loan losses 17,868 4,633 22,501 Unfunded lending commitments (1) — 1,425 1,425 Total allowance for credit losses $ 17,868 $ 6,058 $ 23,926 Retained Earnings Total allowance increase $ 6,058 Balance sheet reclassification (2) (996) Decrease to retained earnings, pre-tax 5,062 Tax effect (1,077) Decrease to retained earnings, net of tax effect $ 3,985 (1) The ACL for unfunded lending commitments is recorded within accrued interest payable and other liabilities on the Consolidated Statements of Financial Condition. During the fourth quarter of 2020, a revision to our estimate of the ACL on unfunded lending commitments reduced the ASC 326 adoption impact by $940,000. (2) For PCD loans, formerly classified as PCI, the Company applied the guidance under CECL using the prospective transition approach. As a result, the Company adjusted the amortized cost basis of the PCD loans to reclassify the purchase discount to the ALL on January 1, 2020.

Acquisition Activity (Tables)

Acquisition Activity (Tables)	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Summary of Acquisition Activity	SUMMARY OF ACQUISITION ACTIVITY (dollars in thousands) Acquisition Acquisition Date Total Assets Total Loans Goodwill Core Deposit Intangible Total Deposits Statewide Bank 3/12/2010 $ 188,026 $ 110,415 $ 560 $ 1,429 $ 206,925 GS Financial Corporation 7/15/2011 256,677 182,440 296 859 193,518 Britton & Koontz Capital Corporation 2/14/2014 298,930 161,581 43 3,030 216,600 Louisiana Bancorp, Inc. 9/15/2015 352,897 281,583 8,454 1,586 208,670 St. Martin Bancshares, Inc. 12/6/2017 592,852 439,872 49,135 6,766 533,497 Total Acquisitions $ 1,689,382 $ 1,175,891 $ 58,488 $ 13,670 $ 1,359,210

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Summary Information Regarding Company's Investment Securities Classified as Available for Sale and Held to Maturity	The following table summarizes the Company’s available for sale and held to maturity investment securities at December 31, 2020 and 2019. (dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value December 31, 2020 Less Than Over 1 Available for sale: U.S. agency mortgage-backed $ 138,669 $ 4,162 $ 19 $ — $ 142,812 Collateralized mortgage obligations 74,112 1,565 55 2 75,620 Municipal bonds 27,306 717 12 — 28,011 U.S. government agency 6,210 55 — 10 6,255 Corporate bonds 2,000 54 — — 2,054 Total available for sale $ 248,297 $ 6,553 $ 86 $ 12 $ 254,752 Held to maturity: Municipal bonds $ 2,934 $ 62 $ — $ — $ 2,996 Total held to maturity $ 2,934 $ 62 $ — $ — $ 2,996 (dollars in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value December 31, 2019 Less Than Over 1 Available for sale: U.S. agency mortgage-backed $ 94,446 $ 1,081 $ 292 $ 63 $ 95,172 Collateralized mortgage obligations 142,408 701 300 358 142,451 Municipal bonds 15,895 166 56 — 16,005 U.S. government agency 3,696 11 4 10 3,693 Total available for sale $ 256,445 $ 1,959 $ 652 $ 431 $ 257,321 Held to maturity: Municipal bonds $ 7,149 $ 45 $ — $ — $ 7,194 Total held to maturity $ 7,149 $ 45 $ — $ — $ 7,194
Company's Investment Securities With Unrealized Losses, Aggregated by Type and Length	The Company's investment securities with unrealized losses, aggregated by type and length of time that individual securities have been in a continuous loss position, are summarized in the following tables. (dollars in thousands) Less Than 1 Year Over 1 Year Total December 31, 2020 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale: U.S. agency mortgage-backed $ 13,666 $ 19 $ — $ — $ 13,666 $ 19 Collateralized mortgage obligations 13,615 55 2,309 2 15,924 57 Municipal bonds 1,278 12 — — 1,278 12 U.S. government agency — — 1,196 10 1,196 10 Corporate bonds — — — — — — Total available for sale $ 28,559 $ 86 $ 3,505 $ 12 $ 32,064 $ 98 Held to maturity: Municipal bonds $ — $ — $ — $ — $ — $ — Total held to maturity $ — $ — $ — $ — $ — $ — (dollars in thousands) Less Than 1 Year Over 1 Year Total December 31, 2019 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Available for sale: U.S. agency mortgage-backed $ 28,847 $ 292 $ 5,148 $ 63 $ 33,995 $ 355 Collateralized mortgage obligations 50,004 300 37,131 358 87,135 658 Municipal bonds 3,044 56 — — 3,044 56 U.S. government agency 1,213 4 466 10 1,679 14 Total available for sale $ 83,108 $ 652 $ 42,745 $ 431 $ 125,853 $ 1,083 Held to maturity: Municipal bonds $ — $ — $ — $ — $ — $ — Total held to maturity $ — $ — $ — $ — $ — $ —
Debt Securities, Held-to-maturity	The following table presents the amortized cost of the Company's held to maturity securities by credit quality rating at December 31, 2020. Credit Ratings (dollars in thousands) AAA/AA/A BBB/BB/B Total December 31, 2020 Held to maturity: Municipal bonds 2,934 — 2,934
Amortized Cost and Estimated Fair Value by Maturity of Company's Investment Securities	The amortized cost and estimated fair value by maturity of the Company’s investment securities as of December 31, 2020 are shown in the following tables. Securities are classified according to their contractual maturities without consideration of principal amortization, potential prepayments or call options. The expected maturity of a security may differ from its contractual maturity because of the exercise of call options and potential paydowns. Accordingly, actual maturities may differ from contractual maturities. (dollars in thousands) One Year or Less After One Year through Five Years After Five Years through Ten Years After Ten Years Total Fair Value Available for sale: U.S. agency mortgage-backed $ 3,239 $ 13,335 $ 48,561 $ 77,677 $ 142,812 Collateralized mortgage obligations — 19,689 19,987 35,944 75,620 Municipal bonds 1,321 2,740 8,305 15,645 28,011 U.S. government agency — — 5,837 418 6,255 Corporate bonds — — 2,054 — 2,054 Total securities available for sale $ 4,560 $ 35,764 $ 84,744 $ 129,684 $ 254,752 Held to maturity: Municipal bonds $ — $ 802 $ 2,194 $ — $ 2,996 Total securities held to maturity $ — $ 802 $ 2,194 $ — $ 2,996 (dollars in thousands) One Year or Less After One Year through Five Years After Five Years through Ten Years After Ten Years Total Amortized Cost Available for sale: U.S. agency mortgage-backed $ 3,204 $ 12,868 $ 46,137 $ 76,460 $ 138,669 Collateralized mortgage obligations — 18,902 19,481 35,729 74,112 Municipal bonds 1,317 2,716 7,906 15,367 27,306 U.S. government agency — — 5,786 424 6,210 Corporate bonds — — 2,000 — 2,000 Total securities available for sale $ 4,521 $ 34,486 $ 81,310 $ 127,980 $ 248,297 Held to maturity: Municipal bonds $ — $ 800 $ 2,134 $ — $ 2,934 Total securities held to maturity $ — $ 800 $ 2,134 $ — $ 2,934

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Summary of Loans, Net of Unearned Income	The Company’s loans, net of unearned income, consisted of the following as of December 31 of the years indicated. (dollars in thousands) 2020 2019 Real estate loans: One- to four-family first mortgage $ 395,638 $ 430,820 Home equity loans and lines 67,700 79,812 Commercial real estate 750,623 722,807 Construction and land 221,823 195,748 Multi-family residential 87,332 54,869 Total real estate loans 1,523,116 1,484,056 Other loans: Commercial and industrial 417,926 184,701 Consumer 38,912 45,604 Total other loans 456,838 230,305 Total loans $ 1,979,954 $ 1,714,361
Schedule of Activity in Allowance for Loan Losses	A summary of activity in the ACL and ALL for the years ended December 31, 2020, 2019 and 2018 follows. For the Year Ended December 31, 2020 (dollars in thousands) Beginning Balance ASC 326 Adoption Impact (1) Charge-offs Recoveries Provision Ending Balance Allowance for credit losses: One- to four-family first mortgage $ 2,715 $ 986 $ (99) $ 13 $ (550) $ 3,065 Home equity loans and lines 1,084 (1) (575) 16 152 676 Commercial real estate 6,541 1,974 (5) 55 10,286 18,851 Construction and land 2,670 519 (688) — 1,654 4,155 Multi-family residential 572 (245) — — 750 1,077 Commercial and industrial 3,694 1,243 (984) 106 217 4,276 Consumer 592 157 (250) 145 219 863 Total allowance for loan losses $ 17,868 $ 4,633 $ (2,601) $ 335 $ 12,728 $ 32,963 Unfunded lending commitments — 1,425 — — — 1,425 Total allowance for credit losses $ 17,868 $ 6,058 $ (2,601) $ 335 $ 12,728 $ 34,388 (1) On January 1, 2020, the Company adopted ASC 326, Financial Instruments - Credit Losses , which introduced a new model know as CECL. Refer to Note 2 for more information on the adoption of ASC 326. For the Year Ended December 31, 2019 (dollars in thousands) Beginning Balance Charge-offs Recoveries Provision Ending Balance Allowance for loan losses: One- to four-family first mortgage $ 2,136 $ (4) $ — $ 583 $ 2,715 Home equity loans and lines 1,079 (42) 16 31 1,084 Commercial real estate 6,125 (360) — 776 6,541 Construction and land 2,285 (6) — 391 2,670 Multi-family residential 550 — — 22 572 Commercial and industrial 3,228 (893) 25 1,334 3,694 Consumer 945 (272) 42 (123) 592 Total allowance for loan losses $ 16,348 $ (1,577) $ 83 $ 3,014 $ 17,868 For the Year Ended December 31, 2018 (dollars in thousands) Beginning Balance Charge-offs Recoveries Provision Ending Balance Allowance for loan losses: One- to four-family first mortgage $ 1,663 $ (1) $ — $ 474 $ 2,136 Home equity loans and lines 1,102 — 5 (28) 1,079 Commercial real estate 4,906 — — 1,219 6,125 Construction and land 1,749 — — 536 2,285 Multi-family residential 355 — — 195 550 Commercial and industrial 4,530 (2,506) 158 1,046 3,228 Consumer 502 (74) 16 501 945 Total allowance for loan losses $ 14,807 $ (2,581) $ 179 $ 3,943 $ 16,348
Allowance for Loan Losses and Recorded Investment in Loans	The ACL, which includes the ALL and the ACL on unfunded lending commitments, and recorded investment in loans as of the dates indicated are as follows. As of December 31, 2020 (dollars in thousands) Collectively Evaluated Individually Evaluated Total Allowance for credit losses: One- to four-family first mortgage $ 2,965 $ 100 $ 3,065 Home equity loans and lines 676 — 676 Commercial real estate 17,843 1,008 18,851 Construction and land 4,155 — 4,155 Multi-family residential 1,077 — 1,077 Commercial and industrial 3,845 431 4,276 Consumer 863 — 863 Total allowance for loan losses $ 31,424 $ 1,539 $ 32,963 Unfunded lending commitments (1) $ 1,425 $ — $ 1,425 Total allowance for credit losses $ 32,849 $ 1,539 $ 34,388 As of December 31, 2020 (dollars in thousands) Collectively Evaluated Individually Evaluated (2) Total Loans: One- to four-family first mortgage $ 394,632 $ 1,006 $ 395,638 Home equity loans and lines 67,700 — 67,700 Commercial real estate 743,223 7,400 750,623 Construction and land 221,823 — 221,823 Multi-family residential 87,332 — 87,332 Commercial and industrial 417,320 606 417,926 Consumer 38,912 — 38,912 Total loans $ 1,970,942 $ 9,012 $ 1,979,954 As of December 31, 2019 (dollars in thousands) Collectively Evaluated for Impairment Individually Evaluated for Impairment Acquired with Deteriorated Credit Quality Total Allowance for loan losses: One- to four-family first mortgage $ 2,715 $ — $ — $ 2,715 Home equity loans and lines 736 348 — 1,084 Commercial real estate 6,243 298 — 6,541 Construction and land 2,670 — — 2,670 Multi-family residential 572 — — 572 Commercial and industrial 2,969 701 24 3,694 Consumer 592 — 592 Total allowance for loan losses $ 16,497 $ 1,347 $ 24 $ 17,868 As of December 31, 2019 (dollars in thousands) Collectively Evaluated for Impairment Individually Evaluated for Impairment Acquired with Deteriorated Credit Quality (3) Total Loans: One- to four-family first mortgage $ 429,745 $ 187 $ 888 $ 430,820 Home equity loans and lines 78,446 784 582 79,812 Commercial real estate 711,282 6,518 5,007 722,807 Construction and land 195,374 — 374 195,748 Multi-family residential 54,690 — 179 54,869 Commercial and industrial 183,141 1,223 337 184,701 Consumer 45,573 — 31 45,604 Total loans $ 1,698,251 $ 8,712 $ 7,398 $ 1,714,361 (1) At December 31, 2020, $1.4 million of the ACL related to unfunded lending commitments of $336.9 million. The ACL on unfunded lending commitments is recorded within accrued interest payable and other liabilities on the Consolidated Statements of Financial Condition. (2) At December 31, 2020, loans individually evaluated for impairment included $277,000 of loans acquired with deteriorated credit quality. (3) At December 31, 2019, loans acquired with deteriorated credit quality were deemed to be PCI and were accounted for under ASC 310-30.
Schedule of Credit Quality Indicators of Loan Portfolio	The following table presents the Company’s loan portfolio by credit quality classification and origination year as of December 31, 2020. Term Loans by Origination Year (dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Loans Total One- to four-family first mortgage: Pass $ 58,958 $ 65,070 $ 46,412 $ 48,851 $ 37,039 $ 114,588 $ 17,762 $ 1,457 $ 390,137 Special Mention — — 167 16 — 1,057 — — 1,240 Substandard 129 34 — 335 1,069 2,694 — — 4,261 Doubtful — — — — — — — — — Total one- to four-family first mortgages $ 59,087 $ 65,104 $ 46,579 $ 49,202 $ 38,108 $ 118,339 $ 17,762 $ 1,457 $ 395,638 Home equity loans and lines: Pass $ 1,172 $ 1,307 $ 2,028 $ 964 $ 1,889 $ 5,537 $ 53,309 $ 1,389 $ 67,595 Special Mention — — — 43 — — — — 43 Substandard — — — — — 58 4 — 62 Doubtful — — — — — — — — — Total home equity loans and lines $ 1,172 $ 1,307 $ 2,028 $ 1,007 $ 1,889 $ 5,595 $ 53,313 $ 1,389 $ 67,700 Commercial real estate: Pass $ 235,900 $ 156,646 $ 96,153 $ 102,166 $ 59,859 $ 60,720 $ 22,962 $ 56 $ 734,462 Special Mention — — — 15 951 — — — 966 Substandard 1,606 1,994 1,742 323 1,344 8,164 — 22 15,195 Doubtful — — — — — — — — — Total commercial real estate loans $ 237,506 $ 158,640 $ 97,895 $ 102,504 $ 62,154 $ 68,884 $ 22,962 $ 78 $ 750,623 Construction and land: Pass $ 87,540 $ 91,337 $ 16,703 $ 5,486 $ 2,585 $ 1,505 $ 1,892 $ 429 $ 207,477 Special Mention 877 — — — — 618 — 627 2,122 Substandard 451 50 — — 252 249 — 11,222 12,224 Doubtful — — — — — — — — — Total construction and land loans $ 88,868 $ 91,387 $ 16,703 $ 5,486 $ 2,837 $ 2,372 $ 1,892 $ 12,278 $ 221,823 Term Loans by Origination Year (dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Loans Total Multi-family residential: Pass $ 40,462 $ 24,329 $ 9,711 $ 3,844 $ 2,889 $ 4,539 $ 1,452 $ — $ 87,226 Special Mention — — — — — — — — — Substandard — — — — — 106 — — 106 Doubtful — — — — — — — — — Total multi-family residential loans $ 40,462 $ 24,329 $ 9,711 $ 3,844 $ 2,889 $ 4,645 $ 1,452 $ — $ 87,332 Commercial and industrial: Pass $ 264,079 $ 29,115 $ 21,053 $ 6,001 $ 3,952 $ 2,408 $ 82,039 $ 1,311 $ 409,958 Special Mention 2,089 792 131 — — 1 1,801 — 4,814 Substandard 592 — 427 23 141 16 1,955 — 3,154 Doubtful — — — — — — — — — Total commercial and industrial loans $ 266,760 $ 29,907 $ 21,611 $ 6,024 $ 4,093 $ 2,425 $ 85,795 $ 1,311 $ 417,926 Consumer: Pass $ 6,844 $ 2,667 $ 1,149 $ 2,073 $ 1,118 $ 18,258 $ 6,340 $ 27 $ 38,476 Special Mention 4 — 4 — 13 120 — 5 146 Substandard — 34 3 12 17 223 — 1 290 Doubtful — — — — — — — — — Total consumer loans $ 6,848 $ 2,701 $ 1,156 $ 2,085 $ 1,148 $ 18,601 $ 6,340 $ 33 $ 38,912 Total loans: Pass $ 694,955 $ 370,471 $ 193,209 $ 169,385 $ 109,331 $ 207,555 $ 185,756 $ 4,669 $ 1,935,331 Special Mention 2,970 792 302 74 964 1,796 1,801 632 9,331 Substandard 2,778 2,112 2,172 693 2,823 11,510 1,959 11,245 35,292 Doubtful — — — — — — — — — Total loans $ 700,703 $ 373,375 $ 195,683 $ 170,152 $ 113,118 $ 220,861 $ 189,516 $ 16,546 $ 1,979,954 The following table presents the Company's loan portfolio by credit quality classification as of December 31, 2019. December 31, 2019 (dollars in thousands) Pass Special Substandard Doubtful Total Originated loans: One- to four-family first mortgage $ 248,483 $ 730 $ 2,133 $ — $ 251,346 Home equity loans and lines 56,029 53 882 — 56,964 Commercial real estate 517,615 207 11,317 — 529,139 Construction and land 164,310 8,107 1,270 — 173,687 Multi-family residential 48,661 — — — 48,661 Commercial and industrial 153,286 — 2,438 — 155,724 Consumer 35,545 46 89 — 35,680 Total originated loans $ 1,223,929 $ 9,143 $ 18,129 $ — $ 1,251,201 Acquired loans: One- to four-family first mortgage $ 173,482 $ 1,429 $ 4,563 $ — $ 179,474 Home equity loans and lines 22,370 128 350 — 22,848 Commercial real estate 181,090 1,593 10,985 — 193,668 Construction and land 19,877 747 1,437 — 22,061 Multi-family residential 5,487 502 219 — 6,208 Commercial and industrial 24,856 56 4,065 — 28,977 Consumer 9,668 166 90 — 9,924 Total acquired loans $ 436,830 $ 4,621 $ 21,709 $ — $ 463,160 Total loans: One- to four-family first mortgage $ 421,965 $ 2,159 $ 6,696 $ — $ 430,820 Home equity loans and lines 78,399 181 1,232 — 79,812 Commercial real estate 698,705 1,800 22,302 — 722,807 Construction and land 184,187 8,854 2,707 — 195,748 Multi-family residential 54,148 502 219 — 54,869 Commercial and industrial 178,142 56 6,503 — 184,701 Consumer 45,213 212 179 — 45,604 Total loans $ 1,660,759 $ 13,764 $ 39,838 $ — $ 1,714,361
Schedule of Past Due Loans	Age analysis of past due loans, as of the dates indicated, is as follows. December 31, 2020 (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Greater Than 90 Days Past Due Total Past Due Current Loans Total Loans Originated loans: Real estate loans: One- to four-family first mortgage $ 1,651 $ 66 $ 365 $ 2,082 $ 258,386 $ 260,468 Home equity loans and lines 117 148 — 265 52,101 52,366 Commercial real estate 518 532 6,770 7,820 581,524 589,344 Construction and land — — — — 207,928 207,928 Multi-family residential 94 — — 94 82,051 82,145 Total real estate loans 2,380 746 7,135 10,261 1,181,990 1,192,251 Other loans: Commercial and industrial 797 3 603 1,403 398,377 399,780 Consumer 219 42 145 406 32,702 33,108 Total other loans 1,016 45 748 1,809 431,079 432,888 Total originated loans $ 3,396 $ 791 $ 7,883 $ 12,070 $ 1,613,069 $ 1,625,139 Acquired loans: Real estate loans: One- to four-family first mortgage $ 1,823 $ 502 $ 1,154 $ 3,479 $ 131,691 $ 135,170 Home equity loans and lines 34 43 25 102 15,232 15,334 Commercial real estate 603 303 2,462 3,368 157,911 161,279 Construction and land — — 142 142 13,753 13,895 Multi-family residential 92 — — 92 5,095 5,187 Total real estate loans 2,552 848 3,783 7,183 323,682 330,865 Other loans: Commercial and industrial 3 — 907 910 17,236 18,146 Consumer 126 50 66 242 5,562 5,804 Total other loans 129 50 973 1,152 22,798 23,950 Total acquired loans $ 2,681 $ 898 $ 4,756 $ 8,335 $ 346,480 $ 354,815 Total loans: Real estate loans: One- to four-family first mortgage $ 3,474 $ 568 $ 1,519 $ 5,561 $ 390,077 $ 395,638 Home equity loans and lines 151 191 25 367 67,333 67,700 Commercial real estate 1,121 835 9,232 11,188 739,435 750,623 Construction and land — — 142 142 221,681 221,823 Multi-family residential 186 — — 186 87,146 87,332 Total real estate loans 4,932 1,594 10,918 17,444 1,505,672 1,523,116 Other loans: Commercial and industrial 800 3 1,510 2,313 415,613 417,926 Consumer 345 92 211 648 38,264 38,912 Total other loans 1,145 95 1,721 2,961 453,877 456,838 Total loans $ 6,077 $ 1,689 $ 12,639 $ 20,405 $ 1,959,549 $ 1,979,954 December 31, 2019 (dollars in thousands) 30-59 Days Past Due 60-89 Days Past Due Greater Than 90 Days Past Due Total Past Due Current Loans Total Loans Originated loans: Real estate loans: One- to four-family first mortgage $ 1,524 $ 173 $ 967 $ 2,664 $ 248,682 $ 251,346 Home equity loans and lines 174 — 98 272 56,692 56,964 Commercial real estate 1,124 1,448 8,056 10,628 518,511 529,139 Construction and land — — 1,171 1,171 172,516 173,687 Multi-family residential — — — — 48,661 48,661 Total real estate loans 2,822 1,621 10,292 14,735 1,045,062 1,059,797 Other loans: Commercial and industrial 213 100 869 1,182 154,542 155,724 Consumer 533 57 34 624 35,056 35,680 Total other loans 746 157 903 1,806 189,598 191,404 Total originated loans $ 3,568 $ 1,778 $ 11,195 $ 16,541 $ 1,234,660 $ 1,251,201 Acquired loans: Real estate loans: One- to four-family first mortgage $ 4,555 $ 1,116 $ 1,108 $ 6,779 $ 172,695 $ 179,474 Home equity loans and lines 267 93 330 690 22,158 22,848 Commercial real estate 337 466 1,945 2,748 190,920 193,668 Construction and land 413 — 1,170 1,583 20,478 22,061 Multi-family residential — — — — 6,208 6,208 Total real estate loans 5,572 1,675 4,553 11,800 412,459 424,259 Other loans: Commercial and industrial 3 57 792 852 28,125 28,977 Consumer 259 127 60 446 9,478 9,924 Total other loans 262 184 852 1,298 37,603 38,901 Total acquired loans $ 5,834 $ 1,859 $ 5,405 $ 13,098 $ 450,062 $ 463,160 Total loans: Real estate loans: One- to four-family first mortgage $ 6,079 $ 1,289 $ 2,075 $ 9,443 $ 421,377 $ 430,820 Home equity loans and lines 441 93 428 962 78,850 79,812 Commercial real estate 1,461 1,914 10,001 13,376 709,431 722,807 Construction and land 413 — 2,341 2,754 192,994 195,748 Multi-family residential — — — — 54,869 54,869 Total real estate loans 8,394 3,296 14,845 26,535 1,457,521 1,484,056 Other loans: Commercial and industrial 216 157 1,661 2,034 182,667 184,701 Consumer 792 184 94 1,070 44,534 45,604 Total other loans 1,008 341 1,755 3,104 227,201 230,305 Total loans $ 9,402 $ 3,637 $ 16,600 $ 29,639 $ 1,684,722 $ 1,714,361
Summary of Information Pertaining to Nonaccrual Noncovered Loans	The following table summarizes information pertaining to nonaccrual loans as of dates indicated. December 31, 2020 December 31, 2019 (dollars in thousands) With Related Allowance Without Related Allowance Total (1) Total (2) Nonaccrual loans: One- to four-family first mortgage $ 3,838 $ — $ 3,838 $ 3,948 Home equity loans and lines 63 — 63 1,244 Commercial real estate 12,298 — 12,298 13,325 Construction and land 469 — 469 2,469 Multi-family residential — — — — Commercial and industrial 1,717 — 1,717 3,224 Consumer 292 — 292 176 Total $ 18,677 $ — $ 18,677 $ 24,386 (1) Due to the adoption of ASC 326, PCD loans of $390,000 are included in nonaccrual loans at December 31, 2020. Prior to January 1, 2020, these loans were classified as PCI and excluded from nonperforming loans because they continued to earn interest income from the accretable yield at the pool level. At adoption, the pools were discontinued and performance is based on contractual terms for individual loans. (2) PCI loans which were being accounted for under ASC 310-30 were excluded from nonaccrual loans because they continued to earn interest from accretable yield regardless of their status as past due or otherwise not in compliance with their contractual terms. PCI loans which were being accounted for under ASC 310-30 and which were 90 days or more past due totaled $2.2 million as of December 31, 2019.
Summary of Information Pertaining to Impaired Loans Excluding Acquired Loans	The table below summarizes collateral dependent loans and the related ACL at December 31, 2020 for which the borrower is experiencing financial difficulty. (dollars in thousands) Loans ACL One- to four-family first mortgage $ 1,006 $ 100 Home equity loans and lines — — Commercial real estate 7,400 1,008 Construction and land — — Multi-family residential — — Commercial and industrial 606 431 Consumer — — Total $ 9,012 $ 1,539 Prior to the adoption of ASC 326 on January 1, 2020, the Company accounted for impaired loans under ASC 310. The following provides a summary of information for the Company's impaired loans at and for the years ended December 31, 2019 and 2018. For the Year Ended December 31, 2019 (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: One- to four-family first mortgage $ 187 $ 187 $ — $ 109 $ — Home equity loans and lines 404 450 — 418 — Commercial real estate 19 21 — 41 — Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 291 329 — 1,063 — Consumer — — — — — Total $ 901 $ 987 $ — $ 1,631 $ — With an allowance recorded: One- to four-family first mortgage $ — $ — $ — $ — $ — Home equity loans and lines 380 425 348 400 — Commercial real estate 6,499 6,587 298 6,639 15 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 932 1,214 701 566 — Consumer — — — — — Total $ 7,811 $ 8,226 $ 1,347 $ 7,605 $ 15 Total impaired loans: One- to four-family first mortgage $ 187 $ 187 $ — $ 109 $ — Home equity loans and lines 784 875 348 818 — Commercial real estate 6,518 6,608 298 6,680 15 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 1,223 1,543 701 1,629 — Consumer — — — — — Total $ 8,712 $ 9,213 $ 1,347 $ 9,236 $ 15 For the Year Ended December 31, 2018 (dollars in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: One- to four-family first mortgage $ — $ — $ — $ — $ — Home equity loans and lines 441 476 — 454 — Commercial real estate 149 161 — 32 7 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 1,540 1,904 — 438 — Consumer — — — — — Total $ 2,130 $ 2,541 $ — $ 924 $ 7 With an allowance recorded: One- to four-family first mortgage $ — $ — $ — $ — $ — Home equity loans and lines 425 457 349 440 — Commercial real estate 6,910 6,910 484 2,057 38 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 412 442 321 1,367 1 Consumer — — — — — Total $ 7,747 $ 7,809 $ 1,154 $ 3,864 $ 39 Total impaired loans: One- to four-family first mortgage $ — $ — $ — $ — $ — Home equity loans and lines 866 933 349 894 — Commercial real estate 7,059 7,071 484 2,089 45 Construction and land — — — — — Multi-family residential — — — — — Commercial and industrial 1,952 2,346 321 1,805 1 Consumer — — — — — Total $ 9,877 $ 10,350 $ 1,154 $ 4,788 $ 46
Information about the Company's TDRs	Information about the Company’s TDRs is presented in the following tables. As of December 31, 2020 (dollars in thousands) Current Past Due Greater Than 30 Days Nonaccrual TDRs Total TDRs Originated loans: Real estate loans: One- to four-family first mortgage $ 342 $ 257 $ 1,099 $ 1,698 Home equity loans and lines 48 — 24 72 Commercial real estate 712 — 5,291 6,003 Construction and land 83 — — 83 Multi-family residential — — — — Total real estate loans 1,185 257 6,414 7,856 Other loans: Commercial and industrial — — — — Consumer 70 — 44 114 Total other loans 70 — 44 114 Total loans $ 1,255 $ 257 $ 6,458 $ 7,970 Acquired loans: Real estate loans: One- to four-family first mortgage $ 376 $ — $ 964 $ 1,340 Home equity loans and lines — — 14 14 Commercial real estate 86 — 2,133 2,219 Construction and land — — 185 185 Multi-family residential 102 — — 102 Total real estate loans 564 — 3,296 3,860 Other loans: Commercial and industrial — — 520 520 Consumer 9 — 23 32 Total other loans 9 — 543 552 Total loans $ 573 $ — $ 3,839 $ 4,412 Total loans: Real estate loans: One- to four-family first mortgage $ 718 $ 257 $ 2,063 $ 3,038 Home equity loans and lines 48 — 38 86 Commercial real estate 798 — 7,424 8,222 Construction and land 83 — 185 268 Multi-family residential 102 — — 102 Total real estate loans 1,749 257 9,710 11,716 Other loans: Commercial and industrial — — 520 520 Consumer 79 — 67 146 Total other loans 79 — 587 666 Total loans $ 1,828 $ 257 $ 10,297 $ 12,382 As of December 31, 2019 (dollars in thousands) Current Past Due Nonaccrual Total Originated loans: Real estate loans: One- to four-family first mortgage $ 671 $ 82 $ 1,370 $ 2,123 Home equity loans and lines 235 53 36 324 Commercial real estate 670 — 5,824 6,494 Construction and land 100 — — 100 Multi-family residential — — — — Total real estate loans 1,676 135 7,230 9,041 Other loans: Commercial and industrial — — 303 303 Consumer 92 — 54 146 Total other loans 92 — 357 449 Total loans $ 1,768 $ 135 $ 7,587 $ 9,490 Acquired loans: Real estate loans: One- to four-family first mortgage $ 365 $ — $ 617 $ 982 Home equity loans and lines — — 20 20 Commercial real estate 90 — 194 284 Construction and land — — — — Multi-family residential — — — — Total real estate loans 455 — 831 1,286 Other loans: Commercial and industrial — — 1,362 1,362 Consumer 20 — 25 45 Total other loans 20 — 1,387 1,407 Total loans $ 475 $ — $ 2,218 $ 2,693 Total loans: Real estate loans: One- to four-family first mortgage $ 1,036 $ 82 $ 1,987 $ 3,105 Home equity loans and lines 235 53 56 344 Commercial real estate 760 — 6,018 6,778 Construction and land 100 — — 100 Multi-family residential — — — — Total real estate loans 2,131 135 8,061 10,327 Other loans: Commercial and industrial — — 1,665 1,665 Consumer 112 — 79 191 Total other loans 112 — 1,744 1,856 Total loans $ 2,243 $ 135 $ 9,805 $ 12,183
Summary of Information Pertaining to Loans Modified	A summary of information pertaining to loans modified as of the periods indicated is as follows. For the Year Ended December 31 2020 2019 (dollars in thousands) Number of Contracts Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Number of Contracts Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Troubled debt restructurings: One- to four-family first mortgage 11 $ 1,409 $ 778 6 $ 932 $ 919 Home equity loans and lines — — — — — — Commercial real estate 9 3,193 3,100 2 193 192 Construction and land 1 185 185 — — — Multi-family residential — — — — — — Commercial and industrial 5 96 81 18 842 820 Other consumer 2 13 8 6 78 70 Total 28 $ 4,896 $ 4,152 32 $ 2,045 $ 2,001

Loan Servicing (Tables)

Loan Servicing (Tables)	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Unpaid Principal Balance of Serviced Mortgage Loans for Others	The unpaid principal balances of these loans as of December 31 of the years indicated are summarized as follows: (dollars in thousands) 2020 2019 Mortgage loans sold to Federal Home Loan Mortgage Corporation without recourse $ 2,633 $ 3,723 Mortgage loans sold to Federal National Mortgage Association without recourse 78,080 114,895 Mortgage loans sold to Federal Home Loan Bank without recourse 185 200 Total, end of period $ 80,898 $ 118,818
Activity Related to Servicing Assets	Activity related to servicing assets for the years ended December 31, 2020, 2019 and 2018 is summarized as follows. (dollars in thousands) 2020 2019 2018 Balance, beginning of period $ 161 $ 272 $ 422 Amortization (161) (111) (150) Balance, end of period — 161 272 Fair value, end of period $ — $ 530 $ 789

Office Properties and Equipme_2

Office Properties and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Summary of Office Properties and Equipment	Office properties and equipment consisted of the following at December 31 of the years indicated. (dollars in thousands) 2020 2019 Land $ 14,245 $ 14,245 Buildings and improvements 36,880 36,364 Furniture and equipment 15,416 14,499 Total office properties and equipment 66,541 65,108 Less accumulated depreciation 21,044 18,683 Total office properties and equipment, net $ 45,497 $ 46,425

Goodwill and Intangibles (Table

Goodwill and Intangibles (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Changes in Carrying Amount of Goodwill and Core Deposit Intangible	Changes in carrying amount of the Company’s goodwill and core deposit intangible (“CDI”) for the years ended December 31, 2020, 2019 and 2018 were as follows. (dollars in thousands) Goodwill CDI Balance, December 31, 2017 $ 58,621 $ 9,412 SMB acquisition (133) — Amortization of intangibles — (1,845) Balance, December 31, 2018 58,488 7,567 Amortization of intangibles — (1,583) Balance, December 31, 2019 58,488 5,984 Amortization of intangibles — (1,360) Balance, December 31, 2020 $ 58,488 $ 4,624

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2020
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Schedule of Deposits Classifications	The Company’s deposits consisted of the following major classifications as of December 31 of the years indicated. (dollars in thousands) 2020 2019 Demand deposit accounts $ 615,700 $ 437,828 Savings 250,165 201,887 Money market accounts 333,078 273,741 NOW accounts 646,085 512,054 Certificates of deposit 368,793 395,465 Total deposits $ 2,213,821 $ 1,820,975
Scheduled Maturities of Certificates of Deposit	As of December 31, 2020, the scheduled maturities of the Company’s certificates of deposit were as follows. (dollars in thousands) Amount 2021 $ 297,387 2022 50,672 2023 11,917 2024 4,419 2025 3,221 Thereafter 1,177 Total certificates of deposit $ 368,793

Long-term FHLB Advances (Tables

Long-term FHLB Advances (Tables)	12 Months Ended
	Dec. 31, 2020
Advances from Federal Home Loan Banks [Abstract]
Summary of Long-term Advances	The following table summarizes long-term advances as of December 31, 2020. (dollars in thousands) Amount Weighted Average Rate Fixed rate advances maturing in: 2021 $ 1,174 2.04 % 2022 5,042 2.08 2023 3,066 1.37 2024 4,434 1.76 2025 11,296 1.64 Thereafter 3,812 1.68 Total long-term FHLB advances $ 28,824 1.73 %

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Notional Amounts and Fair Value of Derivative Liabilities	The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statement of Financial Condition as of December 31, 2020. Derivative Assets (1) Derivative Liabilities (1) (dollars in thousands) Notional Amount Fair Value Notional Amount Fair Value Derivatives designated as hedging instruments: Interest rate swaps - variable rate liabilities $ 40,000 $ 214 $ — $ — Derivatives not designated as hedging instruments: Risk participation agreements — — 10,000 58 Netting adjustments — — Net derivative amounts $ 214 $ 58 (1) Derivative assets and liabilities are reported at fair value in accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively, in the Consolidated Statements of Financial Condition.
Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income	The table below presents the effect of cash flow hedge accounting on Accumulated Other Comprehensive Income as of December 31, 2020. Year Ended December 31, 2020 Amount of Gain Recognized in OCI Location of Gain Reclassified from AOCI into Income Amount of Loss Reclassified from AOCI into Income (dollars in thousands) Total Included Component Total Included Component Derivatives in cash flows hedging relationships: Interest rate swaps - variable rate liabilities $ 176 $ 176 Interest expense $ (44) $ (44)
Effect of Company's Derivative Instruments on the Consolidated Statements of Income	The table below presents the effect of the Company’s derivative financial instruments on the Consolidated Statements of Income as of December 31, 2020. (dollars in thousands) Location of Loss Reclassified from AOCI into Income For the Year Ended December 31, 2020 Effects of cash flow hedging Interest rate swaps - variable rate liabilities Interest expense $ (44) The table below presents the effect of the Company’s derivative financial instruments that are not designated as hedging instruments on the Consolidated Statements of Income as of December 31, 2020. (dollars in thousands) Location of Income Recognized on Non-designated Hedges For the Year Ended December 31, 2020 Effects of non-designated hedges Risk participation agreements Other noninterest income $ 111

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Summarized Income Tax (Benefit) Expense	The Company files federal income tax returns on a calendar year basis. Income tax expense for the years indicated is summarized as follows: (dollars in thousands) 2020 2019 2018 Current $ 8,030 $ 6,123 $ 5,747 Deferred (1,588) 137 2,137 NMTC (400) (400) (400) Impact of Tax Cuts and Jobs Act — — (789) Total income tax expense $ 6,042 $ 5,860 $ 6,695
Summarized Deferred Tax Asset	The components of the Company’s net deferred tax asset, which is included in accrued interest receivable and other assets in the accompanying Statement of Financial Condition at December 31 of the years indicated are as follows: (dollars in thousands) 2020 2019 Deferred tax assets: Provision for loan losses $ 5,949 $ 3,752 Discount on purchased loans 1,146 1,842 Salary continuation plan 700 678 Mortgage servicing rights 80 95 Deferred compensation 5 52 Stock-based compensation 257 264 ASC 326 Adoption Impact (1) 1,063 — Other 65 101 Deferred tax assets $ 9,265 $ 6,784 Deferred tax liabilities: FHLB stock dividends $ (64) $ (108) Accumulated depreciation (3,457) (2,974) Intangible assets (628) (858) Premium on investment securities acquired — — Unrealized gain on securities available for sale (1,356) (184) NMTC (72) (48) Other (105) (96) Deferred tax liabilities (5,682) (4,268) Net deferred tax asset $ 3,583 $ 2,516 (1) The company adopted ASC 326 on January 1, 2020 which included a transition adjustment, net of taxes, to retained earnings. The tax impact due to the adoption of ASC 326 shown here does not include the effect of state tax. Refer to Not e 2 for more information on the adoption of ASC 326.
Provision for Federal Income Taxes	For the years ended December 31, 2020, 2019 and 2018, the Company’s provision for federal income taxes differed from the amount computed by applying the federal income tax statutory rate of 21% on income from operations as indicated in the following analysis: (dollars in thousands) 2020 2019 2018 Federal tax based on statutory rate $ 6,544 $ 7,089 $ 8,023 State tax based on statutory rate 42 34 82 (Decrease) increase resulting from: NMTC (400) (400) (400) Effect of tax-exempt income (136) (128) (171) Changes in the cash surrender value of bank owned life insurance (209) (435) (138) Nondeductible share based compensation expense 162 177 191 Exercise of stock options (8) (599) (131) DTA adjustment – impact of Tax Act — — (789) Other 47 122 28 Income tax expense $ 6,042 $ 5,860 $ 6,695 Effective tax rate 19.6 % 17.3 % 17.5 %

Commitments (Tables)

Commitments (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Summary of Outstanding Commitments to Originate Loans and to Advance Additional Amounts	The following table summarizes our outstanding commitments to originate loans and to advance additional amounts pursuant to outstanding letters of credit, lines of credit, and the undisbursed portion of construction loans as of December 31 of the years indicated. Contract Amount (dollars in thousands) 2020 2019 Standby letters of credit $ 5,781 $ 6,098 Available portion of lines of credit 266,349 247,670 Undisbursed portion of loans in process 99,527 111,466 Commitments to originate loans 139,471 87,446

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2020
Federal Home Loan Banks [Abstract]
Company's and the Bank's Actual Capital Amounts and Ratios	The following tables present actual and required capital ratios for the the Bank under the Basel III Capital Rules. The minimum required capital amounts presented include the minimum required capital levels as of December 31, 2020 and 2019 based on the phase-in provisions of the Basel III Capital Rules as of January 1, 2019 when the Basel III Capital Rules were fully phased-in. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Actual Minimum Capital Required – Basel III Fully Phased-In To Be Well Capitalized Under Prompt Corrective Action Provisions (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio December 31, 2020 Bank: Common equity Tier 1 capital $ 245,090 13.92 % $ 123,263 7.00 % $ 114,459 6.50 % Tier 1 risk-based capital 245,090 13.92 149,677 8.50 140,872 8.00 Total risk-based capital 267,254 15.18 184,895 10.50 176,090 10.00 Tier 1 leverage capital 245,090 9.68 101,247 4.00 126,559 5.00 Actual Minimum Capital Required – Basel III Fully Phased-In To Be Well Capitalized Under Prompt Corrective Action Provisions (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio December 31, 2019 Bank: Common equity Tier 1 capital $ 240,176 14.22 % $ 118,213 7.00 % $ 109,769 6.50 % Tier 1 risk-based capital 240,176 14.22 143,545 8.50 135,101 8.00 Total risk-based capital 258,044 15.28 177,320 10.50 168,876 10.00 Tier 1 leverage capital 240,176 11.17 86,004 4.00 107,506 5.00

Benefit Plans (Tables)

Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2020
Postemployment Benefits [Abstract]
Summary of Employee Stock Ownership Plan	A summary of the ESOP share allocation as of December 31, 2020 and 2019 follows. 2020 2019 Shares allocated, beginning of year 303,395 284,290 Shares allocated during the year 35,708 35,708 Shares distributed during the year (21,082) (16,603) Allocated shares held by ESOP trust as of year end 318,021 303,395 Unallocated shares 276,733 312,441 Total ESOP shares 594,754 615,836

Stock-based Payment Arrangeme_2

Stock-based Payment Arrangements (Tables)	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Assumptions Used in Computing Fair Value of All Options Granted	The fair value of each option granted is estimated on the grant date using the Black-Scholes option pricing model. This model requires management to make certain assumptions, including the expected life of the option, the risk-free rate of interest, the expected volatility and the expected dividend yield. The following assumptions were made in estimating 2020 fair values: Expected dividends 3.95% Expected volatility 24.65% Risk-free interest rate 0.7% Expected term (in years) 6.5
Summary of Stock Option Activity	The following table represents stock option activity for the years indicated. Options Number of Options Weighted-Average Exercise Price Weighted-Average Grant Date Fair Value Weighted-Average Remaining Contractual Term (Years) Outstanding as of December 31, 2017 408,478 $ 16.64 $ 4.46 Granted 28,790 44.88 10.35 Exercised (83,348) 12.90 3.99 Forfeited (1,550) 28.34 5.59 Outstanding as of December 31, 2018 352,370 $ 19.78 $ 5.05 3.6 Granted 38,180 35.78 6.52 Exercised (198,786) 12.52 3.85 Forfeited (11,179) 33.13 6.79 Outstanding as of December 31, 2019 180,585 $ 30.33 $ 6.57 6.6 Granted 35,850 22.34 3.03 Exercised (4,625) 21.33 5.30 Forfeited (7,270) 29.47 5.58 Outstanding as of December 31, 2020 204,540 $ 29.17 $ 6.02 6.2 Exercisable as of December 31, 2018 258,319 $ 14.65 $ 4.27 2.0 Exercisable as of December 31, 2019 86,401 24.73 5.94 5.1 Exercisable as of December 31, 2020 113,988 27.07 6.16 4.8
Unvested Restricted Stock Activity	The following table represents unvested restricted stock activity for the years indicated. Restricted Stock Number of Weighted-Average Grant Date Fair Value Balance, December 31, 2017 54,635 $ 29.26 Granted 16,345 44.88 Forfeited (195) 30.79 Released (15,405) 27.46 Balance, December 31, 2018 55,380 $ 34.36 Granted 19,145 35.84 Forfeited (4,336) 36.01 Released (18,711) 31.79 Balance, December 31, 2019 51,478 $ 35.73 Granted 17,305 22.19 Forfeited (5,183) 33.06 Released (19,247) 32.77 Balance, December 31, 2020 44,353 $ 32.04

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings per common share was computed based on the following: Years Ended December 31, (dollars in thousands, except per share data) 2020 2019 2018 Numerator: Income applicable to common shares $ 24,765 $ 27,932 $ 31,590 Denominator: Weighted average common shares outstanding 8,674 9,074 9,069 Effect of dilutive securities: Restricted stock 9 12 20 Stock options 21 60 210 Weighted average common shares outstanding - assuming dilution 8,704 9,146 9,299 Earnings per common share $ 2.86 $ 3.08 $ 3.48 Earnings per common share - assuming dilution $ 2.85 $ 3.05 $ 3.40

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Summary of Related Party Loan Activity	A summary of related party loan activity during 2020 follows. (dollars in thousands) Balance, beginning of year $ 6,215 New loans 2,694 Repayments, net (554) Balance, end of year $ 8,355

Fair Value Measurements and D_2

Fair Value Measurements and Disclosures (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured on Recurring Basis	The following tables present the balances of assets and liabilities measured on a recurring basis as of December 31, 2020 and 2019 aggregated by the level in the fair value hierarchy in which these measurements fall. (dollars in thousands) December 31, 2020 Level 1 Level 2 Level 3 Assets Available for sale securities: U.S. agency mortgage-backed $ 142,812 $ — $ 142,812 $ — Collateralized mortgage obligations 75,620 — 75,620 — Municipal bonds 28,011 — 28,011 — U.S. government agency 6,255 — 6,255 — Corporate bonds 2,054 — 2,054 — Total available for sale securities $ 254,752 $ — $ 254,752 $ — Derivative assets (1) $ 214 $ — $ 214 $ — Total $ 254,966 $ — $ 254,966 $ — Liabilities Derivative liabilities (1) $ 58 $ — $ 58 $ — (1) For more information, refer to Note 13 . (dollars in thousands) December 31, 2019 Level 1 Level 2 Level 3 Assets Available for sale securities: U.S. agency mortgage-backed $ 95,172 $ — $ 95,172 $ — Collateralized mortgage obligations 142,451 — 142,451 — Municipal bonds 16,005 — 16,005 — U.S. government agency 3,693 — 3,693 — Total $ 257,321 $ — $ 257,321 $ —
Summary of Financial Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	The Company has segregated all financial assets and liabilities that are measured at fair value on a nonrecurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date in the tables below. Fair Value Measurements Using (dollars in thousands) December 31, 2020 Level 1 Level 2 Level 3 Assets Loans individually evaluated for impairment $ 7,473 $ — $ — $ 7,473 Foreclosed assets and ORE 1,302 — — 1,302 Total $ 8,775 $ — $ — $ 8,775 Fair Value Measurements Using (dollars in thousands) December 31, 2019 Level 1 Level 2 Level 3 Assets Loans individually evaluated for impairment $ 7,365 $ — $ — $ 7,365 Foreclosed assets and ORE 4,156 — — 4,156 Total $ 11,521 $ — $ — $ 11,521
Schedule of Significant Unobservable Inputs Used in Fair Value Measurement of Level 3 Assets	The following tables show significant unobservable inputs used in the fair value measurement of Level 3 assets. (dollars in thousands) Fair Value Valuation Technique Unobservable Inputs Range of Discounts Weighted Average Discount As of December 31, 2020 Loans individually evaluated for impairment $ 7,473 Third party appraisals and discounted cash flows Collateral values, market discounts and estimated costs to sell 3% - 87% 17 % Foreclosed assets and ORE $ 1,302 Third party appraisals, sales contracts, broker price opinions Collateral values, market discounts and estimated costs to sell 6% - 42% 11 % (dollars in thousands) Fair Value Valuation Technique Unobservable Inputs Range of Discounts Weighted Average Discount As of December 31, 2019 Loans individually evaluated for impairment $ 7,365 Third party appraisals and discounted cash flows Collateral values, market discounts and estimated costs to sell 0% - 84% 13 % Foreclosed assets and ORE $ 4,156 Third party appraisals, sales contracts, broker price opinions Collateral values, market discounts and estimated costs to sell 6% - 61% 14 %
Summary of Fair Values of Company's Financial Instruments	The fair value of off-balance sheet financial instruments as of December 31, 2020 and 2019 was immaterial. Fair Value Measurements at December 31, 2020 (dollars in thousands) Carrying Amount Total Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 187,952 $ 187,952 $ 187,952 $ — $ — Interest-bearing deposits in banks 349 349 349 — — Investment securities available for sale 254,752 254,752 — 254,752 — Investment securities held to maturity 2,934 2,996 — 2,996 — Mortgage loans held for sale 9,559 9,559 — 9,559 — Loans, net 1,946,991 1,957,705 — 1,950,232 7,473 Cash surrender value of BOLI 40,334 40,334 40,334 — — Derivative assets (1) 214 214 — 214 — Financial Liabilities Deposits $ 2,213,821 $ 2,216,002 $ — $ 2,216,002 $ — Other borrowings 5,539 6,224 — 6,224 — Long-term FHLB advances 28,824 29,662 — 29,662 — Derivative liabilities (1) 58 58 — 58 — (1) Derivative assets and liabilities are reported at fair value in accrued interest receivable and other assets and accrued interest payable and other liabilities, respectively, in the Consolidated Statements of Financial Condition. Fair value Measurements at December 31, 2019 (dollars in thousands) Carrying Amount Total Level 1 Level 2 Level 3 Financial Assets Cash and cash equivalents $ 39,847 $ 39,847 $ 39,847 $ — $ — Interest-bearing deposits in banks 449 449 449 — — Investment securities available for sale 257,321 257,321 — 257,321 — Investment securities held to maturity 7,149 7,194 — 7,194 — Mortgage loans held for sale 6,990 6,990 — 6,990 — Loans, net 1,696,493 1,690,308 — 1,682,943 7,365 Cash surrender value of BOLI 39,466 39,466 39,466 — — Financial Liabilities Deposits $ 1,820,975 $ 1,821,868 $ — $ 1,821,868 $ — Other borrowings 5,539 5,895 — 5,895 — Long-term FHLB advances 40,620 40,580 — 40,580 —

Condensed Parent Company Only_2

Condensed Parent Company Only Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheets	Condensed Balance Sheets December 31, 2020 and 2019 (dollars in thousands) 2020 2019 Assets Cash in bank $ 3,048 $ 6,400 Investment in subsidiary 313,476 305,340 Other assets 5,366 4,613 Total assets $ 321,890 $ 316,353 Liabilities $ 48 $ 24 Shareholders’ equity 321,842 316,329 Total liabilities and shareholders’ equity $ 321,890 $ 316,353
Condensed Statements of Operations	Condensed Statements of Income For the Years Ended December 31, 2020, 2019 and 2018 (dollars in thousands) 2020 2019 2018 Operating income Interest income $ — $ — $ — Dividend from subsidiary 18,200 21,000 — Total operating income 18,200 21,000 — Operating expenses Other expenses 234 192 219 Total operating expenses 234 192 219 Income (loss) before income tax benefit and equity in undistributed earnings of subsidiary 17,966 20,808 (219) Income tax benefit 49 40 44 Income (loss) before equity in undistributed earnings of subsidiary 18,015 20,848 (175) Undistributed earnings of subsidiary 6,750 7,084 31,765 Net income $ 24,765 $ 27,932 $ 31,590
Condensed Statements of Cash Flows	Condensed Statements of Cash Flows For the Years Ended December 31, 2020, 2019 and 2018 (dollars in thousands) 2020 2019 2018 Cash flows from operating activities Net income $ 24,765 $ 27,932 $ 31,590 Adjustments to reconcile net income to net cash provided by operating activities: Non-cash compensation 1,261 1,613 1,799 Increase in accrued interest receivable and other assets (753) (1,118) (1,173) Undistributed earnings in subsidiary (6,750) (7,084) (31,765) Increase (decrease) in accrued expenses and other liabilities 24 14 (68) Net cash provided by operating activities 18,547 21,357 383 Cash flows from financing activities Proceeds from exercise of stock options 30 2,231 914 Payment of dividends on common stock (7,903) (7,898) (6,706) Issuance of stock under incentive plan (13) 157 70 Purchase of Company’s common stock (14,013) (15,445) (1,194) Net cash used in financing activities (21,899) (20,955) (6,916) Net change in cash and cash equivalents (3,352) 402 (6,533) Cash and cash equivalents at beginning of year 6,400 5,998 12,531 Cash and cash equivalents at end of year $ 3,048 $ 6,400 $ 5,998

Consolidated Quarterly Result_2

Consolidated Quarterly Results of Operations (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Summary of Consolidated Quarterly Results of Operations	Consolidated Quarterly Results of Operations (unaudited) During the fourth quarter of 2020, we revised our estimate of losses on unfunded lending commitments. As a result, certain reclassifications have been made to prior period results to allow for comparability across quarterly periods during 2020. Refer to Note 2 for more information. (dollars in thousands, except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2020 Total interest income $ 25,249 $ 25,670 $ 25,842 $ 27,368 Total interest expense 3,926 3,253 2,570 2,169 Net interest income 21,323 22,417 23,272 25,199 Provision for loan losses 6,257 6,471 — — Net interest income after provision for loan losses 15,066 15,946 23,272 25,199 Noninterest income 3,358 3,103 3,794 4,050 Noninterest expense 15,416 15,453 16,116 15,996 Income before income taxes 3,008 3,596 10,950 13,253 Income tax expense 526 675 2,168 2,673 Net income $ 2,482 $ 2,921 $ 8,782 $ 10,580 Earnings per share – basic $ 0.27 $ 0.33 $ 1.01 $ 1.25 Earnings per share – diluted $ 0.27 $ 0.33 $ 1.01 $ 1.24 (dollars in thousands, except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2019 Total interest income $ 25,369 $ 25,921 $ 25,474 $ 25,444 Total interest expense 3,647 4,046 4,333 4,186 Net interest income 21,722 21,875 21,141 21,258 Provision for loan losses 390 765 1,146 713 Net interest income after provision for loan losses 21,332 21,110 19,995 20,545 Noninterest income 3,165 2,977 4,774 3,499 Noninterest expense 15,291 15,952 16,610 15,752 Income before income taxes 9,206 8,135 8,159 8,292 Income tax expense 1,316 1,555 1,303 1,686 Net income $ 7,890 $ 6,580 $ 6,856 $ 6,606 Earnings per share – basic $ 0.86 $ 0.72 $ 0.76 $ 0.74 Earnings per share – diluted $ 0.85 $ 0.72 $ 0.75 $ 0.73 (dollars in thousands, except per share data) First Quarter Second Quarter Third Quarter Fourth Quarter Year Ended December 31, 2018 Total interest income $ 24,725 $ 25,575 $ 26,109 $ 25,903 Total interest expense 2,220 2,239 2,599 3,248 Net interest income 22,505 23,336 23,510 22,655 Provision for loan losses 964 581 786 1,612 Net interest income after provision for loan losses 21,541 22,755 22,724 21,043 Noninterest income 3,482 3,345 3,341 3,279 Noninterest expense 15,590 16,322 15,696 15,617 Income before income taxes 9,433 9,778 10,369 8,705 Income tax expense 1,970 2,002 2,107 616 Net income $ 7,463 $ 7,776 $ 8,262 $ 8,089 Earnings per share – basic $ 0.83 $ 0.85 $ 0.91 $ 0.89 Earnings per share – diluted $ 0.81 $ 0.83 $ 0.89 $ 0.87

Description of Business - Addit

Description of Business - Additional Information (Detail)	Dec. 31, 2020Office
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of banking offices for conducting business	40

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	Jan. 01, 2020	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Reserve requirements		$ 0	$ 0	$ 0
Securities held for trading purposes		0	0	0
Mortgage loans held for sale		9,559,000	9,559,000	6,990,000
Threshold for significant investments		250,000	250,000	250,000
Right-of-use asset		4,566,000	4,566,000	4,544,000
Lease liability		$ 4,695,000	$ 4,695,000	$ 4,588,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]		us-gaap:InterestReceivableAndOtherAssets	us-gaap:InterestReceivableAndOtherAssets	us-gaap:InterestReceivableAndOtherAssets
Operating Lease, Liability, Statement of Financial Position [Extensible List]		us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Period for appraises of property			12 months	12 months
Foreclosed assets and ORE		$ 1,302,000	$ 1,302,000	$ 4,156,000
Other investments		15,721,000	15,721,000	17,179,000
Income tax interest or penalties			0	0	$ 0
Accrued liability for interest or penalty payments		0	0	0	0
Tax effect for unrealized gains (losses) on investment securities			1,218,000	770,000	(278,000)
Tax effect on reclassification adjustment in net income			0	0	0
Decrease to retained earnings, net of tax		(321,842,000)	(321,842,000)	(316,329,000)	(304,040,000)	$ (277,871,000)
Retained Earnings
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Decrease to retained earnings, net of tax		(154,282,000)	$ (154,282,000)	(150,158,000)	$ (141,447,000)	$ (117,313,000)
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Purchase discounts reclassified	$ 1,000,000
Decrease to retained earnings, net of tax				3,985,000
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | Retained Earnings
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Decrease to retained earnings, net of tax	4,700,000			3,985,000
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | Unfunded lending commitments
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Increase (release) in allowance	2,400,000	(2,200,000)
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | Unfunded lending commitments | Other non-interest expense
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Increase (release) in allowance		(1,300,000)
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | Unfunded lending commitments | Retained Earnings
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Increase (release) in allowance		(940,000)
Release in allowance, net of taxes		740,000
non-PCD loans | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Increase (release) in allowance	3,600,000
ASU 2016-13 | Retained Earnings
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Decrease to retained earnings, net of tax	3,985,000
ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Purchase discounts reclassified	$ 1,000,000
Servicing Contracts
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Amortization of intangibles			10 years
Nonrecurring
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Foreclosed assets and ORE		1,302,000	$ 1,302,000	4,156,000
Minimum
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of the individual assets			3 years
Minimum | Core Deposits
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Amortization of intangibles			9 years
Maximum
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of the individual assets			40 years
Maximum | Core Deposits
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Amortization of intangibles			15 years
U S Government Agencies
Schedule Of Summary Of Significant Accounting Policies [Line Items]
Outstanding loans sold to government agencies		$ 80,898,000	$ 80,898,000	$ 118,818,000

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Impact of ASC Topic 326 (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	$ 32,963	$ 22,501	$ 17,868	$ 16,348	$ 14,807
Total allowance for credit losses	34,388	23,926	17,868
Decrease to retained earnings, net of tax effect	(321,842)		(316,329)	(304,040)	(277,871)
Unfunded lending commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	1,425	1,425	0
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			4,633
Total allowance for credit losses			6,058
Decrease to retained earnings, net of tax effect			3,985
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | Unfunded lending commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			1,425
Retained Earnings
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Decrease to retained earnings, net of tax effect	(154,282)		(150,158)	(141,447)	(117,313)
Retained Earnings | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Decrease to retained earnings, net of tax effect		4,700	3,985
ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		4,633
Total allowance for credit losses		6,058
ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | Reclassification
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Reclassifications		(996)
ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | Unfunded lending commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		1,425
ASU 2016-13 | Retained Earnings
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Reclassifications		5,062
Tax effect		(1,077)
Decrease to retained earnings, net of tax effect		3,985
One- to four-family first mortgage
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	3,065	3,701	2,715	2,136	1,663
One- to four-family first mortgage | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			986
One- to four-family first mortgage | ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		986
Home equity loans and lines
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	676	1,083	1,084	1,079	1,102
Home equity loans and lines | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			(1)
Home equity loans and lines | ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		(1)
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	18,851	8,515	6,541	6,125	4,906
Commercial real estate | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			1,974
Commercial real estate | ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		1,974
Construction and land
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	4,155	3,189	2,670	2,285	1,749
Construction and land | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			519
Construction and land | ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		519
Multi-family residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	1,077	327	572	550	355
Multi-family residential | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			(245)
Multi-family residential | ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		(245)
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	4,276	4,937	3,694	3,228	4,530
Commercial and industrial | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			1,243
Commercial and industrial | ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		1,243
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase	$ 863	749	592	$ 945	$ 502
Consumer | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase			$ 157
Consumer | ASU 2016-13 | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Total allowance increase		$ 157

Acquisition Activity - Summary

Acquisition Activity - Summary of Acquisition Activity (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 06, 2017	Sep. 15, 2015	Feb. 14, 2014	Jul. 15, 2011	Mar. 12, 2010
Business Acquisition [Line Items]
Total Assets	$ 1,689,382
Total Loans	1,175,891
Goodwill	58,488	$ 58,488	$ 58,488	$ 58,621
Core Deposit Intangible	13,670
Total Deposits	$ 1,359,210
Statewide Bank
Business Acquisition [Line Items]
Total Assets									$ 188,026
Total Loans									110,415
Goodwill									560
Core Deposit Intangible									1,429
Total Deposits									$ 206,925
GS Financial Corporation
Business Acquisition [Line Items]
Total Assets								$ 256,677
Total Loans								182,440
Goodwill								296
Core Deposit Intangible								859
Total Deposits								$ 193,518
Britton & Koontz Capital Corporation
Business Acquisition [Line Items]
Total Assets							$ 298,930
Total Loans							161,581
Goodwill							43
Core Deposit Intangible							3,030
Total Deposits							$ 216,600
Louisiana Bancorp, Inc.
Business Acquisition [Line Items]
Total Assets						$ 352,897
Total Loans						281,583
Goodwill						8,454
Core Deposit Intangible						1,586
Total Deposits						$ 208,670
St. Martin Bancshares, Inc.
Business Acquisition [Line Items]
Total Assets					$ 592,852
Total Loans					439,872
Goodwill					49,135
Core Deposit Intangible					6,766
Total Deposits					$ 533,497

Investment Securities - Summary

Investment Securities - Summary Information Regarding Investment Securities Classified as Available for Sale and Held to Maturity (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, Amortized Cost	$ 248,297	$ 256,445
Securities available for sale, Gross Unrealized Gains	6,553	1,959
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year	86	652
Securities available for sale, Over 1 Year	12	431
Investment securities available for sale	254,752	257,321
Securities held to maturity, Amortized Cost	2,934	7,149
Securities held to maturity, Gross Unrealized Gains	62	45
Securities held to maturity, Gross unrealized losses, Less Than 1 Year	0	0
Securities held to maturity, Gross unrealized losses, Over 1 Year	0	0
Investment securities held to maturity, Fair Value	2,996	7,194
U.S. agency mortgage-backed
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, Amortized Cost	138,669	94,446
Securities available for sale, Gross Unrealized Gains	4,162	1,081
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year	19	292
Securities available for sale, Over 1 Year	0	63
Investment securities available for sale	142,812	95,172
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, Amortized Cost	74,112	142,408
Securities available for sale, Gross Unrealized Gains	1,565	701
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year	55	300
Securities available for sale, Over 1 Year	2	358
Investment securities available for sale	75,620	142,451
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, Amortized Cost	27,306	15,895
Securities available for sale, Gross Unrealized Gains	717	166
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year	12	56
Securities available for sale, Over 1 Year	0	0
Investment securities available for sale	28,011	16,005
Securities held to maturity, Amortized Cost	2,934	7,149
Securities held to maturity, Gross Unrealized Gains	62	45
Securities held to maturity, Gross unrealized losses, Less Than 1 Year	0	0
Securities held to maturity, Gross unrealized losses, Over 1 Year	0	0
Investment securities held to maturity, Fair Value	2,996	7,194
U.S. government agency
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, Amortized Cost	6,210	3,696
Securities available for sale, Gross Unrealized Gains	55	11
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year	0	4
Securities available for sale, Over 1 Year	10	10
Investment securities available for sale	6,255	$ 3,693
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Securities available for sale, Amortized Cost	2,000
Securities available for sale, Gross Unrealized Gains	54
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year	0
Securities available for sale, Over 1 Year	0
Investment securities available for sale	$ 2,054

Investments Securities - Compan

Investments Securities - Company's Investment Securities With Unrealized Losses, Aggregated by Type and Length (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Securities available-for-sale, Fair Value
Fair Value , Less Than 1 Year	$ 28,559	$ 83,108
Fair Value, Over 1 Year	3,505	42,745
Fair Value	32,064	125,853
Securities available-for-sale, Unrealized Losses
Gross unrealized losses, Less Than 1 Year	86	652
Securities available for sale, Over 1 Year	12	431
Unrealized Losses	98	1,083
Securities held-to-maturity, Fair Value
Fair Value, Less Than 1 Year	0	0
Fair Value, Over 1 Year	0	0
Fair Value	0	0
Securities held-to-maturity, Unrealized Losses
Gross unrealized losses, Less Than 1 Year	0	0
Gross unrealized losses, Over 1 Year	0	0
Unrealized Losses	0	0
U.S. agency mortgage-backed
Securities available-for-sale, Fair Value
Fair Value , Less Than 1 Year	13,666	28,847
Fair Value, Over 1 Year	0	5,148
Fair Value	13,666	33,995
Securities available-for-sale, Unrealized Losses
Gross unrealized losses, Less Than 1 Year	19	292
Securities available for sale, Over 1 Year	0	63
Unrealized Losses	19	355
Collateralized mortgage obligations
Securities available-for-sale, Fair Value
Fair Value , Less Than 1 Year	13,615	50,004
Fair Value, Over 1 Year	2,309	37,131
Fair Value	15,924	87,135
Securities available-for-sale, Unrealized Losses
Gross unrealized losses, Less Than 1 Year	55	300
Securities available for sale, Over 1 Year	2	358
Unrealized Losses	57	658
Municipal bonds
Securities available-for-sale, Fair Value
Fair Value , Less Than 1 Year	1,278	3,044
Fair Value, Over 1 Year	0	0
Fair Value	1,278	3,044
Securities available-for-sale, Unrealized Losses
Gross unrealized losses, Less Than 1 Year	12	56
Securities available for sale, Over 1 Year	0	0
Unrealized Losses	12	56
Securities held-to-maturity, Fair Value
Fair Value, Less Than 1 Year	0	0
Fair Value, Over 1 Year	0	0
Fair Value	0	0
Securities held-to-maturity, Unrealized Losses
Gross unrealized losses, Less Than 1 Year	0	0
Gross unrealized losses, Over 1 Year	0	0
Unrealized Losses	0	0
U.S. government agency
Securities available-for-sale, Fair Value
Fair Value , Less Than 1 Year	0	1,213
Fair Value, Over 1 Year	1,196	466
Fair Value	1,196	1,679
Securities available-for-sale, Unrealized Losses
Gross unrealized losses, Less Than 1 Year	0	4
Securities available for sale, Over 1 Year	10	10
Unrealized Losses	10	$ 14
Corporate bonds
Securities available-for-sale, Fair Value
Fair Value , Less Than 1 Year	0
Fair Value, Over 1 Year	0
Fair Value	0
Securities available-for-sale, Unrealized Losses
Gross unrealized losses, Less Than 1 Year	0
Securities available for sale, Over 1 Year	0
Unrealized Losses	$ 0

Investment Securities - Additio

Investment Securities - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020USD ($)security	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Investments, Debt and Equity Securities [Abstract]
Number of debt securities with unrealized losses (securities) | security	33
Percentage of individual securities' amortized cost basis (percent)	0.30%
Percentage of Company's total amortized cost basis of investment securities portfolio (percent)	0.04%
Number of debt securities in continuous loss position for over 12 months (securities) | security	3
Loss duration	12 months
ACL recorded for available for sale investment securities	$ 0
ACL for Company's held to maturity investment securities	0
Gross gain on sale of investment securities	0	$ 0	$ 0
Gross loss on sale of investment securities	0	0	$ 0
Accrued interest receivable for investment securities	744,000	894,000
Securities pledged to secure public deposits	$ 125,889,000	$ 157,091,000

Investment Securities - Amortiz

Investment Securities - Amortized Cost of Held-to-Maturity Securities by Credit Quality (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Investment securities held to maturity	$ 2,934	$ 7,149
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Investment securities held to maturity	2,934	$ 7,149
Municipal bonds | AAA/AA/A
Debt Securities, Available-for-sale [Line Items]
Investment securities held to maturity	2,934
Municipal bonds | BBB/BB/B
Debt Securities, Available-for-sale [Line Items]
Investment securities held to maturity	$ 0

Investment Securities - Amort_2

Investment Securities - Amortized Cost and Estimated Fair Value by Maturity of Company's Investment Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt and Equity Securities, FV-NI [Line Items]
Securities available for sale, One Year or Less, Fair Value	$ 4,560
Securities available for sale, After One Year through Five Years, Fair Value	35,764
Securities available for sale, After Five Years through Ten Years, Fair Value	84,744
Securities available for sale, After Ten Years, Fair Value	129,684
Total available for sale, Fair Value	254,752	$ 257,321
Securities held to maturity, One Year or Less, Fair Value	0
Securities held to maturity, After One Year through Five Years, Fair Value	802
Securities held to maturity, After Five Years through Ten Years, Fair Value	2,194
Securities held to maturity, After Ten Years, Fair Value	0
Total held to maturity, Fair Value	2,996	7,194
Securities available for sale, Amortized Cost, One Year or Less	4,521
Securities available for sale, Amortized Cost, After One Year through Five Years	34,486
Securities available for sale, Amortized Cost, After Five Years through Ten Years	81,310
Securities available for sale, Amortized Cost, After Ten Years	127,980
Securities available for sale, Amortized Cost	248,297	256,445
Securities held to maturity, Amortized Cost, One Year or Less	0
Securities held to maturity, Amortized Cost, After One Year through Five Years	800
Securities held to maturity, Amortized Cost, After Five Years through Ten Years	2,134
Securities held to maturity, Amortized Cost, After Ten Years	0
Securities held to maturity, Amortized Cost	2,934	7,149
U.S. agency mortgage-backed
Debt and Equity Securities, FV-NI [Line Items]
Securities available for sale, One Year or Less, Fair Value	3,239
Securities available for sale, After One Year through Five Years, Fair Value	13,335
Securities available for sale, After Five Years through Ten Years, Fair Value	48,561
Securities available for sale, After Ten Years, Fair Value	77,677
Total available for sale, Fair Value	142,812	95,172
Securities available for sale, Amortized Cost, One Year or Less	3,204
Securities available for sale, Amortized Cost, After One Year through Five Years	12,868
Securities available for sale, Amortized Cost, After Five Years through Ten Years	46,137
Securities available for sale, Amortized Cost, After Ten Years	76,460
Securities available for sale, Amortized Cost	138,669	94,446
Collateralized mortgage obligations
Debt and Equity Securities, FV-NI [Line Items]
Securities available for sale, One Year or Less, Fair Value	0
Securities available for sale, After One Year through Five Years, Fair Value	19,689
Securities available for sale, After Five Years through Ten Years, Fair Value	19,987
Securities available for sale, After Ten Years, Fair Value	35,944
Total available for sale, Fair Value	75,620	142,451
Securities available for sale, Amortized Cost, One Year or Less	0
Securities available for sale, Amortized Cost, After One Year through Five Years	18,902
Securities available for sale, Amortized Cost, After Five Years through Ten Years	19,481
Securities available for sale, Amortized Cost, After Ten Years	35,729
Securities available for sale, Amortized Cost	74,112	142,408
Municipal bonds
Debt and Equity Securities, FV-NI [Line Items]
Securities available for sale, One Year or Less, Fair Value	1,321
Securities available for sale, After One Year through Five Years, Fair Value	2,740
Securities available for sale, After Five Years through Ten Years, Fair Value	8,305
Securities available for sale, After Ten Years, Fair Value	15,645
Total available for sale, Fair Value	28,011	16,005
Securities held to maturity, One Year or Less, Fair Value	0
Securities held to maturity, After One Year through Five Years, Fair Value	802
Securities held to maturity, After Five Years through Ten Years, Fair Value	2,194
Securities held to maturity, After Ten Years, Fair Value	0
Total held to maturity, Fair Value	2,996	7,194
Securities available for sale, Amortized Cost, One Year or Less	1,317
Securities available for sale, Amortized Cost, After One Year through Five Years	2,716
Securities available for sale, Amortized Cost, After Five Years through Ten Years	7,906
Securities available for sale, Amortized Cost, After Ten Years	15,367
Securities available for sale, Amortized Cost	27,306	15,895
Securities held to maturity, Amortized Cost, One Year or Less	0
Securities held to maturity, Amortized Cost, After One Year through Five Years	800
Securities held to maturity, Amortized Cost, After Five Years through Ten Years	2,134
Securities held to maturity, Amortized Cost, After Ten Years	0
Securities held to maturity, Amortized Cost	2,934	7,149
U.S. government agency
Debt and Equity Securities, FV-NI [Line Items]
Securities available for sale, One Year or Less, Fair Value	0
Securities available for sale, After One Year through Five Years, Fair Value	0
Securities available for sale, After Five Years through Ten Years, Fair Value	5,837
Securities available for sale, After Ten Years, Fair Value	418
Total available for sale, Fair Value	6,255	3,693
Securities available for sale, Amortized Cost, One Year or Less	0
Securities available for sale, Amortized Cost, After One Year through Five Years	0
Securities available for sale, Amortized Cost, After Five Years through Ten Years	5,786
Securities available for sale, Amortized Cost, After Ten Years	424
Securities available for sale, Amortized Cost	6,210	$ 3,696
Corporate bonds
Debt and Equity Securities, FV-NI [Line Items]
Securities available for sale, One Year or Less, Fair Value	0
Securities available for sale, After One Year through Five Years, Fair Value	0
Securities available for sale, After Five Years through Ten Years, Fair Value	2,054
Securities available for sale, After Ten Years, Fair Value	0
Total available for sale, Fair Value	2,054
Securities available for sale, Amortized Cost, One Year or Less	0
Securities available for sale, Amortized Cost, After One Year through Five Years	0
Securities available for sale, Amortized Cost, After Five Years through Ten Years	2,000
Securities available for sale, Amortized Cost, After Ten Years	0
Securities available for sale, Amortized Cost	$ 2,000

Loans - Additional Information

Loans - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020USD ($)SecurityLoanproperty	Dec. 31, 2019USD ($)SecurityLoan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Net discount on loans	$ 6,650,000	$ 12,315,000
Unearned income	8,727,000	3,114,000
Total loans	1,979,954,000	1,714,361,000
Accrued interest receivable for loans	8,635,000	6,575,000
Individually evaluated for impairment, Recorded investment in loans	9,012,000
ACL related to unfunded loan commitments	31,424,000
Financing receivable, recorded investment, 90 days past due and still accruing	2,000	0
Threshold for significant investments	250,000	250,000
Nonaccrual loans	18,677,000	24,386,000
Foreclosed assets and ORE	1,302,000	4,156,000
Loans secured by residential real estate that are in process of foreclosure	446,000	723,000
Modified loans	$ 36,047,000
Modified loans as a percentage of outstanding loans (percent)	2.00%
Unfunded commitments to borrowers whose loans had been modified	$ 0	0
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | ASU 2016-13
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual loans	390,000
Held for sale
Financing Receivable, Troubled Debt Restructuring [Line Items]
Carrying value of foreclosed assets	212,000	1,275,000
Expected sale
Financing Receivable, Troubled Debt Restructuring [Line Items]
Carrying value of foreclosed assets	$ 1,035,000
Number of properties sold | property	6
Gains (losses) on sale	$ (126,000)
Nonrecurring
Financing Receivable, Troubled Debt Restructuring [Line Items]
Foreclosed assets and ORE	1,302,000	4,156,000
Originated loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	1,625,139,000	1,251,201,000
Individually evaluated for impairment, Recorded investment in loans		8,712,000
ACL related to unfunded loan commitments		16,497,000
Financial Asset Acquired with Credit Deterioration
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		7,398,000
Financial Asset Acquired with Credit Deterioration | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Individually evaluated for impairment, Recorded investment in loans	$ 277,000
Number of loans | SecurityLoan	1
Acquired loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	$ 354,815,000	463,160,000
Acquired loans | ASC 310-30
Financing Receivable, Troubled Debt Restructuring [Line Items]
Nonaccrual loans		2,200,000
PPP loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Deferred lender fees	5,449,000
Unfunded lending commitments
Financing Receivable, Troubled Debt Restructuring [Line Items]
ACL related to unfunded loan commitments	1,425,000
Unfunded lending commitments | Originated loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	336,900,000
ACL related to unfunded loan commitments	1,400,000
Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Repossessed Assets	877,000	1,737,000
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	417,926,000	184,701,000
Individually evaluated for impairment, Recorded investment in loans	606,000
ACL related to unfunded loan commitments	3,845,000
Nonaccrual loans	1,717,000	3,224,000
Commercial and industrial | Originated loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		155,724,000
Individually evaluated for impairment, Recorded investment in loans		1,223,000
ACL related to unfunded loan commitments		2,969,000
Commercial and industrial | Financial Asset Acquired with Credit Deterioration
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		337,000
Commercial and industrial | Acquired loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		28,977,000
Commercial and industrial | PPP loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	221,220,000
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	750,623,000	722,807,000
Individually evaluated for impairment, Recorded investment in loans	7,400,000
ACL related to unfunded loan commitments	17,843,000
Nonaccrual loans	$ 12,298,000	13,325,000
Number of modified loans with subsequent default within twelve months | SecurityLoan	2
Modified loans that subsequently defaulted within twelve months	$ 282,000
Commercial real estate | Originated loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		529,139,000
Individually evaluated for impairment, Recorded investment in loans		6,518,000
ACL related to unfunded loan commitments		6,243,000
Commercial real estate | Financial Asset Acquired with Credit Deterioration
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		5,007,000
Commercial real estate | Acquired loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		193,668,000
Home equity loans and lines
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	67,700,000	79,812,000
Individually evaluated for impairment, Recorded investment in loans	0
ACL related to unfunded loan commitments	676,000
Nonaccrual loans	$ 63,000	$ 1,244,000
Number of modified loans with subsequent default within twelve months | SecurityLoan	4	2
Modified loans that subsequently defaulted within twelve months	$ 582,000	$ 619,000
Home equity loans and lines | Originated loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		56,964,000
Individually evaluated for impairment, Recorded investment in loans		784,000
ACL related to unfunded loan commitments		736,000
Home equity loans and lines | Financial Asset Acquired with Credit Deterioration
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		582,000
Home equity loans and lines | Acquired loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		22,848,000
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	38,912,000	45,604,000
Individually evaluated for impairment, Recorded investment in loans	0
ACL related to unfunded loan commitments	863,000
Nonaccrual loans	$ 292,000	$ 176,000
Number of modified loans with subsequent default within twelve months | SecurityLoan	1	2
Modified loans that subsequently defaulted within twelve months	$ 4,000	$ 10,000
Consumer | Originated loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		35,680,000
Individually evaluated for impairment, Recorded investment in loans		0
ACL related to unfunded loan commitments		592,000
Consumer | Financial Asset Acquired with Credit Deterioration
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		31,000
Consumer | Acquired loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans		$ 9,924,000

Loans - Summary of Loans, Net o

Loans - Summary of Loans, Net of Unearned Income (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,979,954	$ 1,714,361
Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,523,116	1,484,056
Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	456,838	230,305
One- to four-family first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	395,638	430,820
One- to four-family first mortgage | Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	395,638	430,820
Home equity loans and lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	67,700	79,812
Home equity loans and lines | Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	67,700	79,812
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	750,623	722,807
Commercial real estate | Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	750,623	722,807
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	221,823	195,748
Construction and land | Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	221,823	195,748
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	87,332	54,869
Multi-family residential | Real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	87,332	54,869
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	417,926	184,701
Commercial and industrial | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	417,926	184,701
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	38,912	45,604
Consumer | Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 38,912	$ 45,604

Loans- Schedule of Activity in

Loans- Schedule of Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				$ 17,868				$ 16,348				$ 14,807	$ 17,868	$ 16,348	$ 14,807
Charge-offs													(2,601)	(1,577)	(2,581)
Recoveries													335	83	179
Provision for loan losses	$ 0	$ 0	$ 6,471	6,257	$ 713	$ 1,146	$ 765	390	$ 1,612	$ 786	$ 581	964	12,728	3,014	3,943
Ending Balance	32,963				17,868				16,348				32,963	17,868	16,348
Total allowance for credit losses	34,388				17,868								34,388	17,868		$ 23,926
Credit loss expense (reversal)													12,728
Unfunded lending commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				0									0
Charge-offs													0
Recoveries													0
Provision for loan losses													0
Ending Balance	1,425				0								1,425	0
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				4,633									4,633
Ending Balance					4,633									4,633
Total allowance for credit losses					6,058									6,058
Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax | Unfunded lending commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				1,425									1,425
Ending Balance					1,425									1,425
One- to four-family first mortgage
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				2,715				2,136				1,663	2,715	2,136	1,663
Charge-offs													(99)	(4)	(1)
Recoveries													13	0	0
Provision for loan losses													(550)	583	474
Ending Balance	3,065				2,715				2,136				3,065	2,715	2,136
One- to four-family first mortgage | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				986									986
Ending Balance					986									986
Home equity loans and lines
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				1,084				1,079				1,102	1,084	1,079	1,102
Charge-offs													(575)	(42)	0
Recoveries													16	16	5
Provision for loan losses													152	31	(28)
Ending Balance	676				1,084				1,079				676	1,084	1,079
Home equity loans and lines | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				(1)									(1)
Ending Balance					(1)									(1)
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				6,541				6,125				4,906	6,541	6,125	4,906
Charge-offs													(5)	(360)	0
Recoveries													55	0	0
Provision for loan losses													10,286	776	1,219
Ending Balance	18,851				6,541				6,125				18,851	6,541	6,125
Commercial real estate | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				1,974									1,974
Ending Balance					1,974									1,974
Construction and land
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				2,670				2,285				1,749	2,670	2,285	1,749
Charge-offs													(688)	(6)	0
Recoveries													0	0	0
Provision for loan losses													1,654	391	536
Ending Balance	4,155				2,670				2,285				4,155	2,670	2,285
Construction and land | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				519									519
Ending Balance					519									519
Multi-family residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				572				550				355	572	550	355
Charge-offs													0	0	0
Recoveries													0	0	0
Provision for loan losses													750	22	195
Ending Balance	1,077				572				550				1,077	572	550
Multi-family residential | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				(245)									(245)
Ending Balance					(245)									(245)
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				3,694				3,228				4,530	3,694	3,228	4,530
Charge-offs													(984)	(893)	(2,506)
Recoveries													106	25	158
Provision for loan losses													217	1,334	1,046
Ending Balance	4,276				3,694				3,228				4,276	3,694	3,228
Commercial and industrial | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				1,243									1,243
Ending Balance					1,243									1,243
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				592				$ 945				$ 502	592	945	502
Charge-offs													(250)	(272)	(74)
Recoveries													145	42	16
Provision for loan losses													219	(123)	501
Ending Balance	$ 863				592				$ 945				863	592	$ 945
Consumer | Cumulative effect of change in accounting principle due to the adoption of ASC 326, net of tax
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance				$ 157									$ 157
Ending Balance					$ 157									$ 157

Loans - Allowance for Loan Loss

Loans - Allowance for Loan Losses and Recorded Investment in Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	$ 31,424
Individually evaluated for impairment, Allowance for loan losses	1,539
Allowance for loan losses	32,963	$ 22,501	$ 17,868	$ 16,348	$ 14,807
Total allowance for credit losses	32,849
Total allowance for credit losses	1,539
Total allowance for credit losses	34,388	23,926	17,868
Collectively evaluated for impairment, Recorded investment in loans	1,970,942
Individually evaluated for impairment, Recorded investment in loans	9,012
Total	1,979,954		1,714,361
Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses			16,497
Individually evaluated for impairment, Allowance for loan losses			1,347
Collectively evaluated for impairment, Recorded investment in loans			1,698,251
Individually evaluated for impairment, Recorded investment in loans			8,712
Total	1,625,139		1,251,201
Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			24
Total			7,398
Unfunded lending commitments
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	1,425
Individually evaluated for impairment, Allowance for loan losses	0
Allowance for loan losses	1,425	1,425	0
Unfunded lending commitments | Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	1,400
Total	336,900
One- to four-family first mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	2,965
Individually evaluated for impairment, Allowance for loan losses	100
Allowance for loan losses	3,065	3,701	2,715	2,136	1,663
Collectively evaluated for impairment, Recorded investment in loans	394,632
Individually evaluated for impairment, Recorded investment in loans	1,006
Total	395,638		430,820
One- to four-family first mortgage | Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses			2,715
Individually evaluated for impairment, Allowance for loan losses			0
Collectively evaluated for impairment, Recorded investment in loans			429,745
Individually evaluated for impairment, Recorded investment in loans			187
Total			251,346
One- to four-family first mortgage | Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			0
Total			888
Home equity loans and lines
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	676
Individually evaluated for impairment, Allowance for loan losses	0
Allowance for loan losses	676	1,083	1,084	1,079	1,102
Collectively evaluated for impairment, Recorded investment in loans	67,700
Individually evaluated for impairment, Recorded investment in loans	0
Total	67,700		79,812
Home equity loans and lines | Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses			736
Individually evaluated for impairment, Allowance for loan losses			348
Collectively evaluated for impairment, Recorded investment in loans			78,446
Individually evaluated for impairment, Recorded investment in loans			784
Total			56,964
Home equity loans and lines | Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			0
Total			582
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	17,843
Individually evaluated for impairment, Allowance for loan losses	1,008
Allowance for loan losses	18,851	8,515	6,541	6,125	4,906
Collectively evaluated for impairment, Recorded investment in loans	743,223
Individually evaluated for impairment, Recorded investment in loans	7,400
Total	750,623		722,807
Commercial real estate | Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses			6,243
Individually evaluated for impairment, Allowance for loan losses			298
Collectively evaluated for impairment, Recorded investment in loans			711,282
Individually evaluated for impairment, Recorded investment in loans			6,518
Total			529,139
Commercial real estate | Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			0
Total			5,007
Construction and land
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	4,155
Individually evaluated for impairment, Allowance for loan losses	0
Allowance for loan losses	4,155	3,189	2,670	2,285	1,749
Collectively evaluated for impairment, Recorded investment in loans	221,823
Individually evaluated for impairment, Recorded investment in loans	0
Total	221,823		195,748
Construction and land | Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses			2,670
Individually evaluated for impairment, Allowance for loan losses			0
Collectively evaluated for impairment, Recorded investment in loans			195,374
Individually evaluated for impairment, Recorded investment in loans			0
Total			173,687
Construction and land | Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			0
Total			374
Multi-family residential
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	1,077
Individually evaluated for impairment, Allowance for loan losses	0
Allowance for loan losses	1,077	327	572	550	355
Collectively evaluated for impairment, Recorded investment in loans	87,332
Individually evaluated for impairment, Recorded investment in loans	0
Total	87,332		54,869
Multi-family residential | Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses			572
Individually evaluated for impairment, Allowance for loan losses			0
Collectively evaluated for impairment, Recorded investment in loans			54,690
Individually evaluated for impairment, Recorded investment in loans			0
Total			48,661
Multi-family residential | Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			0
Total			179
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	3,845
Individually evaluated for impairment, Allowance for loan losses	431
Allowance for loan losses	4,276	4,937	3,694	3,228	4,530
Collectively evaluated for impairment, Recorded investment in loans	417,320
Individually evaluated for impairment, Recorded investment in loans	606
Total	417,926		184,701
Commercial and industrial | Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses			2,969
Individually evaluated for impairment, Allowance for loan losses			701
Collectively evaluated for impairment, Recorded investment in loans			183,141
Individually evaluated for impairment, Recorded investment in loans			1,223
Total			155,724
Commercial and industrial | Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses			24
Total			337
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses	863
Individually evaluated for impairment, Allowance for loan losses	0
Allowance for loan losses	863	$ 749	592	$ 945	$ 502
Collectively evaluated for impairment, Recorded investment in loans	38,912
Individually evaluated for impairment, Recorded investment in loans	0
Total	$ 38,912		45,604
Consumer | Originated loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Allowance for loan losses			592
Individually evaluated for impairment, Allowance for loan losses			0
Collectively evaluated for impairment, Recorded investment in loans			45,573
Individually evaluated for impairment, Recorded investment in loans			0
Total			35,680
Consumer | Acquired with Deteriorated Credit Quality
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan losses
Total			$ 31

Loans - Schedule of Loan Portfo

Loans - Schedule of Loan Portfolio by Credit Quality Classification and Origination Year (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
2020	$ 700,703
2019	373,375
2018	195,683
2017	170,152
2016	113,118
Prior	220,861
Revolving Loans	189,516
Revolving Loans Converted to Term Loans	16,546
Total	1,979,954	$ 1,714,361
Pass
Financing Receivable, Recorded Investment [Line Items]
2020	694,955
2019	370,471
2018	193,209
2017	169,385
2016	109,331
Prior	207,555
Revolving Loans	185,756
Revolving Loans Converted to Term Loans	4,669
Total	1,935,331	1,660,759
Special Mention
Financing Receivable, Recorded Investment [Line Items]
2020	2,970
2019	792
2018	302
2017	74
2016	964
Prior	1,796
Revolving Loans	1,801
Revolving Loans Converted to Term Loans	632
Total	9,331	13,764
Substandard
Financing Receivable, Recorded Investment [Line Items]
2020	2,778
2019	2,112
2018	2,172
2017	693
2016	2,823
Prior	11,510
Revolving Loans	1,959
Revolving Loans Converted to Term Loans	11,245
Total	35,292	39,838
Doubtful
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0	0
One- to four-family first mortgage
Financing Receivable, Recorded Investment [Line Items]
2020	59,087
2019	65,104
2018	46,579
2017	49,202
2016	38,108
Prior	118,339
Revolving Loans	17,762
Revolving Loans Converted to Term Loans	1,457
Total	395,638	430,820
One- to four-family first mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
2020	58,958
2019	65,070
2018	46,412
2017	48,851
2016	37,039
Prior	114,588
Revolving Loans	17,762
Revolving Loans Converted to Term Loans	1,457
Total	390,137	421,965
One- to four-family first mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	167
2017	16
2016	0
Prior	1,057
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	1,240	2,159
One- to four-family first mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
2020	129
2019	34
2018	0
2017	335
2016	1,069
Prior	2,694
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	4,261	6,696
One- to four-family first mortgage | Doubtful
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0	0
Home equity loans and lines
Financing Receivable, Recorded Investment [Line Items]
2020	1,172
2019	1,307
2018	2,028
2017	1,007
2016	1,889
Prior	5,595
Revolving Loans	53,313
Revolving Loans Converted to Term Loans	1,389
Total	67,700	79,812
Home equity loans and lines | Pass
Financing Receivable, Recorded Investment [Line Items]
2020	1,172
2019	1,307
2018	2,028
2017	964
2016	1,889
Prior	5,537
Revolving Loans	53,309
Revolving Loans Converted to Term Loans	1,389
Total	67,595	78,399
Home equity loans and lines | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	43
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	43	181
Home equity loans and lines | Substandard
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	58
Revolving Loans	4
Revolving Loans Converted to Term Loans	0
Total	62	1,232
Home equity loans and lines | Doubtful
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0	0
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
2020	237,506
2019	158,640
2018	97,895
2017	102,504
2016	62,154
Prior	68,884
Revolving Loans	22,962
Revolving Loans Converted to Term Loans	78
Total	750,623	722,807
Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
2020	235,900
2019	156,646
2018	96,153
2017	102,166
2016	59,859
Prior	60,720
Revolving Loans	22,962
Revolving Loans Converted to Term Loans	56
Total	734,462	698,705
Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	15
2016	951
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	966	1,800
Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
2020	1,606
2019	1,994
2018	1,742
2017	323
2016	1,344
Prior	8,164
Revolving Loans	0
Revolving Loans Converted to Term Loans	22
Total	15,195	22,302
Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0	0
Construction and land
Financing Receivable, Recorded Investment [Line Items]
2020	88,868
2019	91,387
2018	16,703
2017	5,486
2016	2,837
Prior	2,372
Revolving Loans	1,892
Revolving Loans Converted to Term Loans	12,278
Total	221,823	195,748
Construction and land | Pass
Financing Receivable, Recorded Investment [Line Items]
2020	87,540
2019	91,337
2018	16,703
2017	5,486
2016	2,585
Prior	1,505
Revolving Loans	1,892
Revolving Loans Converted to Term Loans	429
Total	207,477	184,187
Construction and land | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2020	877
2019	0
2018	0
2017	0
2016	0
Prior	618
Revolving Loans	0
Revolving Loans Converted to Term Loans	627
Total	2,122	8,854
Construction and land | Substandard
Financing Receivable, Recorded Investment [Line Items]
2020	451
2019	50
2018	0
2017	0
2016	252
Prior	249
Revolving Loans	0
Revolving Loans Converted to Term Loans	11,222
Total	12,224	2,707
Construction and land | Doubtful
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0	0
Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
2020	40,462
2019	24,329
2018	9,711
2017	3,844
2016	2,889
Prior	4,645
Revolving Loans	1,452
Revolving Loans Converted to Term Loans	0
Total	87,332	54,869
Multi-family residential | Pass
Financing Receivable, Recorded Investment [Line Items]
2020	40,462
2019	24,329
2018	9,711
2017	3,844
2016	2,889
Prior	4,539
Revolving Loans	1,452
Revolving Loans Converted to Term Loans	0
Total	87,226	54,148
Multi-family residential | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0	502
Multi-family residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	106
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	106	219
Multi-family residential | Doubtful
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0	0
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
2020	266,760
2019	29,907
2018	21,611
2017	6,024
2016	4,093
Prior	2,425
Revolving Loans	85,795
Revolving Loans Converted to Term Loans	1,311
Total	417,926	184,701
Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
2020	264,079
2019	29,115
2018	21,053
2017	6,001
2016	3,952
Prior	2,408
Revolving Loans	82,039
Revolving Loans Converted to Term Loans	1,311
Total	409,958	178,142
Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2020	2,089
2019	792
2018	131
2017	0
2016	0
Prior	1
Revolving Loans	1,801
Revolving Loans Converted to Term Loans	0
Total	4,814	56
Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
2020	592
2019	0
2018	427
2017	23
2016	141
Prior	16
Revolving Loans	1,955
Revolving Loans Converted to Term Loans	0
Total	3,154	6,503
Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	0	0
Consumer
Financing Receivable, Recorded Investment [Line Items]
2020	6,848
2019	2,701
2018	1,156
2017	2,085
2016	1,148
Prior	18,601
Revolving Loans	6,340
Revolving Loans Converted to Term Loans	33
Total	38,912	45,604
Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
2020	6,844
2019	2,667
2018	1,149
2017	2,073
2016	1,118
Prior	18,258
Revolving Loans	6,340
Revolving Loans Converted to Term Loans	27
Total	38,476	45,213
Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2020	4
2019	0
2018	4
2017	0
2016	13
Prior	120
Revolving Loans	0
Revolving Loans Converted to Term Loans	5
Total	146	212
Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	34
2018	3
2017	12
2016	17
Prior	223
Revolving Loans	0
Revolving Loans Converted to Term Loans	1
Total	290	179
Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	$ 0	$ 0

Loans - Schedule of Credit Qual

Loans - Schedule of Credit Quality Indicators of Loan Portfolio (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1,979,954	$ 1,714,361
Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,625,139	1,251,201
Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans	354,815	463,160
One- to four-family first mortgage
Financing Receivable, Recorded Investment [Line Items]
Total loans	395,638	430,820
One- to four-family first mortgage | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		251,346
One- to four-family first mortgage | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		179,474
Home equity loans and lines
Financing Receivable, Recorded Investment [Line Items]
Total loans	67,700	79,812
Home equity loans and lines | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		56,964
Home equity loans and lines | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		22,848
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total loans	750,623	722,807
Commercial real estate | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		529,139
Commercial real estate | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		193,668
Construction and land
Financing Receivable, Recorded Investment [Line Items]
Total loans	221,823	195,748
Construction and land | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		173,687
Construction and land | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		22,061
Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	87,332	54,869
Multi-family residential | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		48,661
Multi-family residential | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		6,208
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	417,926	184,701
Commercial and industrial | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		155,724
Commercial and industrial | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		28,977
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	38,912	45,604
Consumer | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		35,680
Consumer | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		9,924
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,935,331	1,660,759
Pass | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		1,223,929
Pass | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		436,830
Pass | One- to four-family first mortgage
Financing Receivable, Recorded Investment [Line Items]
Total loans	390,137	421,965
Pass | One- to four-family first mortgage | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		248,483
Pass | One- to four-family first mortgage | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		173,482
Pass | Home equity loans and lines
Financing Receivable, Recorded Investment [Line Items]
Total loans	67,595	78,399
Pass | Home equity loans and lines | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		56,029
Pass | Home equity loans and lines | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		22,370
Pass | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total loans	734,462	698,705
Pass | Commercial real estate | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		517,615
Pass | Commercial real estate | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		181,090
Pass | Construction and land
Financing Receivable, Recorded Investment [Line Items]
Total loans	207,477	184,187
Pass | Construction and land | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		164,310
Pass | Construction and land | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		19,877
Pass | Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	87,226	54,148
Pass | Multi-family residential | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		48,661
Pass | Multi-family residential | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		5,487
Pass | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	409,958	178,142
Pass | Commercial and industrial | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		153,286
Pass | Commercial and industrial | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		24,856
Pass | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	38,476	45,213
Pass | Consumer | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		35,545
Pass | Consumer | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		9,668
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,331	13,764
Special Mention | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		9,143
Special Mention | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		4,621
Special Mention | One- to four-family first mortgage
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,240	2,159
Special Mention | One- to four-family first mortgage | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		730
Special Mention | One- to four-family first mortgage | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		1,429
Special Mention | Home equity loans and lines
Financing Receivable, Recorded Investment [Line Items]
Total loans	43	181
Special Mention | Home equity loans and lines | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		53
Special Mention | Home equity loans and lines | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		128
Special Mention | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total loans	966	1,800
Special Mention | Commercial real estate | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		207
Special Mention | Commercial real estate | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		1,593
Special Mention | Construction and land
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,122	8,854
Special Mention | Construction and land | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		8,107
Special Mention | Construction and land | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		747
Special Mention | Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	502
Special Mention | Multi-family residential | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Special Mention | Multi-family residential | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		502
Special Mention | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,814	56
Special Mention | Commercial and industrial | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Special Mention | Commercial and industrial | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		56
Special Mention | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	146	212
Special Mention | Consumer | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		46
Special Mention | Consumer | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		166
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	35,292	39,838
Substandard | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		18,129
Substandard | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		21,709
Substandard | One- to four-family first mortgage
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,261	6,696
Substandard | One- to four-family first mortgage | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		2,133
Substandard | One- to four-family first mortgage | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		4,563
Substandard | Home equity loans and lines
Financing Receivable, Recorded Investment [Line Items]
Total loans	62	1,232
Substandard | Home equity loans and lines | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		882
Substandard | Home equity loans and lines | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		350
Substandard | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total loans	15,195	22,302
Substandard | Commercial real estate | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		11,317
Substandard | Commercial real estate | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		10,985
Substandard | Construction and land
Financing Receivable, Recorded Investment [Line Items]
Total loans	12,224	2,707
Substandard | Construction and land | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		1,270
Substandard | Construction and land | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		1,437
Substandard | Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	106	219
Substandard | Multi-family residential | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Substandard | Multi-family residential | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		219
Substandard | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,154	6,503
Substandard | Commercial and industrial | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		2,438
Substandard | Commercial and industrial | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		4,065
Substandard | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	290	179
Substandard | Consumer | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		89
Substandard | Consumer | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		90
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | One- to four-family first mortgage
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful | One- to four-family first mortgage | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | One- to four-family first mortgage | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Home equity loans and lines
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful | Home equity loans and lines | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Home equity loans and lines | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful | Commercial real estate | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Commercial real estate | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Construction and land
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful | Construction and land | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Construction and land | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Multi-family residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful | Multi-family residential | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Multi-family residential | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful | Commercial and industrial | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Commercial and industrial | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 0	0
Doubtful | Consumer | Originated loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Doubtful | Consumer | Acquired loans
Financing Receivable, Recorded Investment [Line Items]
Total loans		$ 0

Loans - Schedule of Past Due Lo

Loans - Schedule of Past Due Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 20,405	$ 29,639
Current Loans	1,959,549	1,684,722
Total	1,979,954	1,714,361
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,077	9,402
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,689	3,637
Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,639	16,600
Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,070	16,541
Current Loans	1,613,069	1,234,660
Total	1,625,139	1,251,201
Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,396	3,568
Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	791	1,778
Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,883	11,195
Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,335	13,098
Current Loans	346,480	450,062
Total	354,815	463,160
Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,681	5,834
Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	898	1,859
Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,756	5,405
Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	17,444	26,535
Current Loans	1,505,672	1,457,521
Total	1,523,116	1,484,056
Real estate loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,932	8,394
Real estate loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,594	3,296
Real estate loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10,918	14,845
Real estate loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	10,261	14,735
Current Loans	1,181,990	1,045,062
Total	1,192,251	1,059,797
Real estate loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,380	2,822
Real estate loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	746	1,621
Real estate loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,135	10,292
Real estate loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,183	11,800
Current Loans	323,682	412,459
Total	330,865	424,259
Real estate loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,552	5,572
Real estate loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	848	1,675
Real estate loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,783	4,553
Other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,961	3,104
Current Loans	453,877	227,201
Total	456,838	230,305
Other loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,145	1,008
Other loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	95	341
Other loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,721	1,755
Other loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,809	1,806
Current Loans	431,079	189,598
Total	432,888	191,404
Other loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,016	746
Other loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	45	157
Other loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	748	903
Other loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,152	1,298
Current Loans	22,798	37,603
Total	23,950	38,901
Other loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	129	262
Other loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	50	184
Other loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	973	852
One- to four-family first mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	395,638	430,820
One- to four-family first mortgage | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		251,346
One- to four-family first mortgage | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		179,474
One- to four-family first mortgage | Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,561	9,443
Current Loans	390,077	421,377
Total	395,638	430,820
One- to four-family first mortgage | Real estate loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,474	6,079
One- to four-family first mortgage | Real estate loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	568	1,289
One- to four-family first mortgage | Real estate loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,519	2,075
One- to four-family first mortgage | Real estate loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,082	2,664
Current Loans	258,386	248,682
Total	260,468	251,346
One- to four-family first mortgage | Real estate loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,651	1,524
One- to four-family first mortgage | Real estate loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	66	173
One- to four-family first mortgage | Real estate loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	365	967
One- to four-family first mortgage | Real estate loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,479	6,779
Current Loans	131,691	172,695
Total	135,170	179,474
One- to four-family first mortgage | Real estate loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,823	4,555
One- to four-family first mortgage | Real estate loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	502	1,116
One- to four-family first mortgage | Real estate loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,154	1,108
Home equity loans and lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	67,700	79,812
Home equity loans and lines | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		56,964
Home equity loans and lines | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		22,848
Home equity loans and lines | Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	367	962
Current Loans	67,333	78,850
Total	67,700	79,812
Home equity loans and lines | Real estate loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	151	441
Home equity loans and lines | Real estate loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	191	93
Home equity loans and lines | Real estate loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	25	428
Home equity loans and lines | Real estate loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	265	272
Current Loans	52,101	56,692
Total	52,366	56,964
Home equity loans and lines | Real estate loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	117	174
Home equity loans and lines | Real estate loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	148	0
Home equity loans and lines | Real estate loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	98
Home equity loans and lines | Real estate loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	102	690
Current Loans	15,232	22,158
Total	15,334	22,848
Home equity loans and lines | Real estate loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	34	267
Home equity loans and lines | Real estate loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	43	93
Home equity loans and lines | Real estate loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	25	330
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	750,623	722,807
Commercial real estate | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		529,139
Commercial real estate | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		193,668
Commercial real estate | Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,188	13,376
Current Loans	739,435	709,431
Total	750,623	722,807
Commercial real estate | Real estate loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,121	1,461
Commercial real estate | Real estate loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	835	1,914
Commercial real estate | Real estate loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,232	10,001
Commercial real estate | Real estate loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,820	10,628
Current Loans	581,524	518,511
Total	589,344	529,139
Commercial real estate | Real estate loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	518	1,124
Commercial real estate | Real estate loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	532	1,448
Commercial real estate | Real estate loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,770	8,056
Commercial real estate | Real estate loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,368	2,748
Current Loans	157,911	190,920
Total	161,279	193,668
Commercial real estate | Real estate loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	603	337
Commercial real estate | Real estate loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	303	466
Commercial real estate | Real estate loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,462	1,945
Construction and land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	221,823	195,748
Construction and land | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		173,687
Construction and land | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		22,061
Construction and land | Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	142	2,754
Current Loans	221,681	192,994
Total	221,823	195,748
Construction and land | Real estate loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	413
Construction and land | Real estate loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Construction and land | Real estate loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	142	2,341
Construction and land | Real estate loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	1,171
Current Loans	207,928	172,516
Total	207,928	173,687
Construction and land | Real estate loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Construction and land | Real estate loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Construction and land | Real estate loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	1,171
Construction and land | Real estate loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	142	1,583
Current Loans	13,753	20,478
Total	13,895	22,061
Construction and land | Real estate loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	413
Construction and land | Real estate loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Construction and land | Real estate loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	142	1,170
Multi-family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	87,332	54,869
Multi-family residential | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		48,661
Multi-family residential | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		6,208
Multi-family residential | Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	186	0
Current Loans	87,146	54,869
Total	87,332	54,869
Multi-family residential | Real estate loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	186	0
Multi-family residential | Real estate loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Multi-family residential | Real estate loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Multi-family residential | Real estate loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	94	0
Current Loans	82,051	48,661
Total	82,145	48,661
Multi-family residential | Real estate loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	94	0
Multi-family residential | Real estate loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Multi-family residential | Real estate loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Multi-family residential | Real estate loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	92	0
Current Loans	5,095	6,208
Total	5,187	6,208
Multi-family residential | Real estate loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	92	0
Multi-family residential | Real estate loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Multi-family residential | Real estate loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	417,926	184,701
Commercial and industrial | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		155,724
Commercial and industrial | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		28,977
Commercial and industrial | Other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,313	2,034
Current Loans	415,613	182,667
Total	417,926	184,701
Commercial and industrial | Other loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	800	216
Commercial and industrial | Other loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3	157
Commercial and industrial | Other loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,510	1,661
Commercial and industrial | Other loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,403	1,182
Current Loans	398,377	154,542
Total	399,780	155,724
Commercial and industrial | Other loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	797	213
Commercial and industrial | Other loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3	100
Commercial and industrial | Other loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	603	869
Commercial and industrial | Other loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	910	852
Current Loans	17,236	28,125
Total	18,146	28,977
Commercial and industrial | Other loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3	3
Commercial and industrial | Other loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	57
Commercial and industrial | Other loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	907	792
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	38,912	45,604
Consumer | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		35,680
Consumer | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total		9,924
Consumer | Other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	648	1,070
Current Loans	38,264	44,534
Total	38,912	45,604
Consumer | Other loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	345	792
Consumer | Other loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	92	184
Consumer | Other loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	211	94
Consumer | Other loans | Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	406	624
Current Loans	32,702	35,056
Total	33,108	35,680
Consumer | Other loans | Originated loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	219	533
Consumer | Other loans | Originated loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	42	57
Consumer | Other loans | Originated loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	145	34
Consumer | Other loans | Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	242	446
Current Loans	5,562	9,478
Total	5,804	9,924
Consumer | Other loans | Acquired loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	126	259
Consumer | Other loans | Acquired loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	50	127
Consumer | Other loans | Acquired loans | Greater Than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 66	$ 60

Loans - Summary of Information

Loans - Summary of Information Pertaining to Non Accrual Non Covered Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
With Related Allowance	$ 18,677
Without Related Allowance	0
Nonaccrual loans	18,677	$ 24,386
One- to four-family first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
With Related Allowance	3,838
Without Related Allowance	0
Nonaccrual loans	3,838	3,948
Home equity loans and lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
With Related Allowance	63
Without Related Allowance	0
Nonaccrual loans	63	1,244
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
With Related Allowance	12,298
Without Related Allowance	0
Nonaccrual loans	12,298	13,325
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
With Related Allowance	469
Without Related Allowance	0
Nonaccrual loans	469	2,469
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
With Related Allowance	0
Without Related Allowance	0
Nonaccrual loans	0	0
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
With Related Allowance	1,717
Without Related Allowance	0
Nonaccrual loans	1,717	3,224
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
With Related Allowance	292
Without Related Allowance	0
Nonaccrual loans	$ 292	$ 176

Loans - Summary of Informatio_2

Loans - Summary of Information Pertaining to Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment			$ 7,811	$ 7,747
Allowance for loan losses	$ 32,963	$ 22,501	17,868	16,348	$ 14,807
Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment	9,012
Allowance for loan losses	1,539
One- to four-family first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment			0	0
Allowance for loan losses	3,065	3,701	2,715	2,136	1,663
One- to four-family first mortgage | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment	1,006
Allowance for loan losses	100
Home equity loans and lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment			380	425
Allowance for loan losses	676	1,083	1,084	1,079	1,102
Home equity loans and lines | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment	0
Allowance for loan losses	0
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment			6,499	6,910
Allowance for loan losses	18,851	8,515	6,541	6,125	4,906
Commercial real estate | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment	7,400
Allowance for loan losses	1,008
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment			0	0
Allowance for loan losses	4,155	3,189	2,670	2,285	1,749
Construction and land | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment	0
Allowance for loan losses	0
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment			0	0
Allowance for loan losses	1,077	327	572	550	355
Multi-family residential | Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment	0
Allowance for loan losses	0
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment			932	412
Allowance for loan losses	4,276	4,937	3,694	3,228	4,530
Commercial and industrial | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment	606
Allowance for loan losses	431
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment			0	0
Allowance for loan losses	863	$ 749	$ 592	$ 945	$ 502
Consumer | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans with an allowance recorded, Recorded Investment	0
Allowance for loan losses	$ 0

Loans - Summary of Informatio_3

Loans - Summary of Information Pertaining to Impaired Loans Excluding Acquired Loans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded Investment	$ 901	$ 2,130
Impaired loans with no related allowance recorded, Unpaid Principal Balance	987	2,541
Impaired loans with no related allowance recorded, Average Recorded Investment	1,631	924
Impaired loans with no related allowance recorded, Interest Income Recognized	0	7
Impaired loans with an allowance recorded, Recorded Investment	7,811	7,747
Impaired loans with an allowance recorded, Unpaid Principal Balance	8,226	7,809
Impaired loans with an allowance recorded, Related Allowance	1,347	1,154
Impaired loans with an allowance recorded, Average Recorded Investment	7,605	3,864
Impaired loans with an allowance recorded, Interest Income Recognized	15	39
Impaired loans Recorded Investment	8,712	9,877
Impaired loans Unpaid Principal Balance	9,213	10,350
Impaired loans Related Allowance	1,347	1,154
Impaired loans Average Recorded Investment	9,236	4,788
Impaired loans Interest Income Recognized	15	46
One- to four-family first mortgage
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded Investment	187	0
Impaired loans with no related allowance recorded, Unpaid Principal Balance	187	0
Impaired loans with no related allowance recorded, Average Recorded Investment	109	0
Impaired loans with no related allowance recorded, Interest Income Recognized	0	0
Impaired loans with an allowance recorded, Recorded Investment	0	0
Impaired loans with an allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with an allowance recorded, Related Allowance	0	0
Impaired loans with an allowance recorded, Average Recorded Investment	0	0
Impaired loans with an allowance recorded, Interest Income Recognized	0	0
Impaired loans Recorded Investment	187	0
Impaired loans Unpaid Principal Balance	187	0
Impaired loans Related Allowance	0	0
Impaired loans Average Recorded Investment	109	0
Impaired loans Interest Income Recognized	0	0
Home equity loans and lines
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded Investment	404	441
Impaired loans with no related allowance recorded, Unpaid Principal Balance	450	476
Impaired loans with no related allowance recorded, Average Recorded Investment	418	454
Impaired loans with no related allowance recorded, Interest Income Recognized	0	0
Impaired loans with an allowance recorded, Recorded Investment	380	425
Impaired loans with an allowance recorded, Unpaid Principal Balance	425	457
Impaired loans with an allowance recorded, Related Allowance	348	349
Impaired loans with an allowance recorded, Average Recorded Investment	400	440
Impaired loans with an allowance recorded, Interest Income Recognized	0	0
Impaired loans Recorded Investment	784	866
Impaired loans Unpaid Principal Balance	875	933
Impaired loans Related Allowance	348	349
Impaired loans Average Recorded Investment	818	894
Impaired loans Interest Income Recognized	0	0
Commercial real estate
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded Investment	19	149
Impaired loans with no related allowance recorded, Unpaid Principal Balance	21	161
Impaired loans with no related allowance recorded, Average Recorded Investment	41	32
Impaired loans with no related allowance recorded, Interest Income Recognized	0	7
Impaired loans with an allowance recorded, Recorded Investment	6,499	6,910
Impaired loans with an allowance recorded, Unpaid Principal Balance	6,587	6,910
Impaired loans with an allowance recorded, Related Allowance	298	484
Impaired loans with an allowance recorded, Average Recorded Investment	6,639	2,057
Impaired loans with an allowance recorded, Interest Income Recognized	15	38
Impaired loans Recorded Investment	6,518	7,059
Impaired loans Unpaid Principal Balance	6,608	7,071
Impaired loans Related Allowance	298	484
Impaired loans Average Recorded Investment	6,680	2,089
Impaired loans Interest Income Recognized	15	45
Construction and land
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded Investment	0	0
Impaired loans with no related allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with no related allowance recorded, Average Recorded Investment	0	0
Impaired loans with no related allowance recorded, Interest Income Recognized	0	0
Impaired loans with an allowance recorded, Recorded Investment	0	0
Impaired loans with an allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with an allowance recorded, Related Allowance	0	0
Impaired loans with an allowance recorded, Average Recorded Investment	0	0
Impaired loans with an allowance recorded, Interest Income Recognized	0	0
Impaired loans Recorded Investment	0	0
Impaired loans Unpaid Principal Balance	0	0
Impaired loans Related Allowance	0	0
Impaired loans Average Recorded Investment	0	0
Impaired loans Interest Income Recognized	0	0
Multi-family residential
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded Investment	0	0
Impaired loans with no related allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with no related allowance recorded, Average Recorded Investment	0	0
Impaired loans with no related allowance recorded, Interest Income Recognized	0	0
Impaired loans with an allowance recorded, Recorded Investment	0	0
Impaired loans with an allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with an allowance recorded, Related Allowance	0	0
Impaired loans with an allowance recorded, Average Recorded Investment	0	0
Impaired loans with an allowance recorded, Interest Income Recognized	0	0
Impaired loans Recorded Investment	0	0
Impaired loans Unpaid Principal Balance	0	0
Impaired loans Related Allowance	0	0
Impaired loans Average Recorded Investment	0	0
Impaired loans Interest Income Recognized	0	0
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded Investment	291	1,540
Impaired loans with no related allowance recorded, Unpaid Principal Balance	329	1,904
Impaired loans with no related allowance recorded, Average Recorded Investment	1,063	438
Impaired loans with no related allowance recorded, Interest Income Recognized	0	0
Impaired loans with an allowance recorded, Recorded Investment	932	412
Impaired loans with an allowance recorded, Unpaid Principal Balance	1,214	442
Impaired loans with an allowance recorded, Related Allowance	701	321
Impaired loans with an allowance recorded, Average Recorded Investment	566	1,367
Impaired loans with an allowance recorded, Interest Income Recognized	0	1
Impaired loans Recorded Investment	1,223	1,952
Impaired loans Unpaid Principal Balance	1,543	2,346
Impaired loans Related Allowance	701	321
Impaired loans Average Recorded Investment	1,629	1,805
Impaired loans Interest Income Recognized	0	1
Consumer
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded Investment	0	0
Impaired loans with no related allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with no related allowance recorded, Average Recorded Investment	0	0
Impaired loans with no related allowance recorded, Interest Income Recognized	0	0
Impaired loans with an allowance recorded, Recorded Investment	0	0
Impaired loans with an allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with an allowance recorded, Related Allowance	0	0
Impaired loans with an allowance recorded, Average Recorded Investment	0	0
Impaired loans with an allowance recorded, Interest Income Recognized	0	0
Impaired loans Recorded Investment	0	0
Impaired loans Unpaid Principal Balance	0	0
Impaired loans Related Allowance	0	0
Impaired loans Average Recorded Investment	0	0
Impaired loans Interest Income Recognized	$ 0	$ 0

Loans - Information about Compa

Loans - Information about Company's TDRs (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 1,828	$ 2,243
Past Due Greater Than 30 Days	257	135
Nonaccrual TDRs	10,297	9,805
Total TDRs	12,382	12,183
Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,749	2,131
Past Due Greater Than 30 Days	257	135
Nonaccrual TDRs	9,710	8,061
Total TDRs	11,716	10,327
Real estate loans | One- to four-family first mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	718	1,036
Past Due Greater Than 30 Days	257	82
Nonaccrual TDRs	2,063	1,987
Total TDRs	3,038	3,105
Real estate loans | Home equity loans and lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	48	235
Past Due Greater Than 30 Days	0	53
Nonaccrual TDRs	38	56
Total TDRs	86	344
Real estate loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	798	760
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	7,424	6,018
Total TDRs	8,222	6,778
Real estate loans | Construction and land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	83	100
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	185	0
Total TDRs	268	100
Real estate loans | Multi-family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	102	0
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	0	0
Total TDRs	102	0
Other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	79	112
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	587	1,744
Total TDRs	666	1,856
Other loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	0	0
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	520	1,665
Total TDRs	520	1,665
Other loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	79	112
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	67	79
Total TDRs	146	191
Originated loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,255	1,768
Past Due Greater Than 30 Days	257	135
Nonaccrual TDRs	6,458	7,587
Total TDRs	7,970	9,490
Originated loans | Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,185	1,676
Past Due Greater Than 30 Days	257	135
Nonaccrual TDRs	6,414	7,230
Total TDRs	7,856	9,041
Originated loans | Real estate loans | One- to four-family first mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	342	671
Past Due Greater Than 30 Days	257	82
Nonaccrual TDRs	1,099	1,370
Total TDRs	1,698	2,123
Originated loans | Real estate loans | Home equity loans and lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	48	235
Past Due Greater Than 30 Days	0	53
Nonaccrual TDRs	24	36
Total TDRs	72	324
Originated loans | Real estate loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	712	670
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	5,291	5,824
Total TDRs	6,003	6,494
Originated loans | Real estate loans | Construction and land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	83	100
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	0	0
Total TDRs	83	100
Originated loans | Real estate loans | Multi-family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	0	0
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	0	0
Total TDRs	0	0
Originated loans | Other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	70	92
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	44	357
Total TDRs	114	449
Originated loans | Other loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	0	0
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	0	303
Total TDRs	0	303
Originated loans | Other loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	70	92
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	44	54
Total TDRs	114	146
Acquired loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	573	475
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	3,839	2,218
Total TDRs	4,412	2,693
Acquired loans | Real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	564	455
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	3,296	831
Total TDRs	3,860	1,286
Acquired loans | Real estate loans | One- to four-family first mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	376	365
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	964	617
Total TDRs	1,340	982
Acquired loans | Real estate loans | Home equity loans and lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	0	0
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	14	20
Total TDRs	14	20
Acquired loans | Real estate loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	86	90
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	2,133	194
Total TDRs	2,219	284
Acquired loans | Real estate loans | Construction and land
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	0	0
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	185	0
Total TDRs	185	0
Acquired loans | Real estate loans | Multi-family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	102	0
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	0	0
Total TDRs	102	0
Acquired loans | Other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	9	20
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	543	1,387
Total TDRs	552	1,407
Acquired loans | Other loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	0	0
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	520	1,362
Total TDRs	520	1,362
Acquired loans | Other loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	9	20
Past Due Greater Than 30 Days	0	0
Nonaccrual TDRs	23	25
Total TDRs	$ 32	$ 45

Loans - Summary of Informatio_4

Loans - Summary of Information Pertaining to Loans Modified (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)contract	Dec. 31, 2019USD ($)contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	28	32
Pre-modification Outstanding Recorded Investment	$ 4,896	$ 2,045
Post-modification Outstanding Recorded Investment	$ 4,152	$ 2,001
One- to four-family first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	11	6
Pre-modification Outstanding Recorded Investment	$ 1,409	$ 932
Post-modification Outstanding Recorded Investment	$ 778	$ 919
Home equity loans and lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Pre-modification Outstanding Recorded Investment	$ 0	$ 0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	9	2
Pre-modification Outstanding Recorded Investment	$ 3,193	$ 193
Post-modification Outstanding Recorded Investment	$ 3,100	$ 192
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	1	0
Pre-modification Outstanding Recorded Investment	$ 185	$ 0
Post-modification Outstanding Recorded Investment	$ 185	$ 0
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	0	0
Pre-modification Outstanding Recorded Investment	$ 0	$ 0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	5	18
Pre-modification Outstanding Recorded Investment	$ 96	$ 842
Post-modification Outstanding Recorded Investment	$ 81	$ 820
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Contracts | contract	2	6
Pre-modification Outstanding Recorded Investment	$ 13	$ 78
Post-modification Outstanding Recorded Investment	$ 8	$ 70

Loan Servicing - Unpaid Princip

Loan Servicing - Unpaid Principal Balance of Serviced Mortgage Loans for Others (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total, end of period	$ 80,898	$ 118,818
Mortgage loans sold to Federal Home Loan Mortgage Corporation without recourse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total, end of period	2,633	3,723
Mortgage loans sold to Federal National Mortgage Association without recourse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total, end of period	78,080	114,895
Mortgage loans sold to Federal Home Loan Bank without recourse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total, end of period	$ 185	$ 200

Loan Servicing - Activity Relat

Loan Servicing - Activity Related to Servicing Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Servicing Asset [Roll Forward]
Balance, beginning of period	$ 161	$ 272	$ 422
Amortization	(161)	(111)	(150)
Balance, end of period	0	161	272
Fair value, end of period	$ 0	$ 530	$ 789

Loan Servicing - Additional Inf

Loan Servicing - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loan servicing arrangements
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foregoing loan servicing arrangements	$ 1,761	$ 2,201

Office Properties and Equipme_3

Office Properties and Equipment - Summary of Office Properties and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total office properties and equipment	$ 66,541	$ 65,108
Less accumulated depreciation	21,044	18,683
Total office properties and equipment, net	45,497	46,425
Land
Property, Plant and Equipment [Line Items]
Total office properties and equipment	14,245	14,245
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total office properties and equipment	36,880	36,364
Furniture and equipment
Property, Plant and Equipment [Line Items]
Total office properties and equipment	$ 15,416	$ 14,499

Office Properties and Equipme_4

Office Properties and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 3,063	$ 2,875	$ 2,504
Held for sale
Property, Plant and Equipment [Line Items]
Carrying value of foreclosed assets	$ 212	$ 1,275

Goodwill and Intangibles (Detai

Goodwill and Intangibles (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill
Goodwill beginning balance	$ 58,488	$ 58,488	$ 58,621
Goodwill acquired during period			(133)
Goodwill ending balance	58,488	58,488	58,488
CDI
Core deposit intangibles beginning balance	5,984	7,567	9,412
Core deposit intangibles amortization of intangibles	(1,360)	(1,583)	(1,845)
Core deposit intangibles ending balance	$ 4,624	$ 5,984	$ 7,567

Deposits - Schedule of Deposits

Deposits - Schedule of Deposits Classifications (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Demand deposit accounts	$ 615,700	$ 437,828
Savings	250,165	201,887
Money market accounts	333,078	273,741
NOW accounts	646,085	512,054
Certificates of deposit	368,793	395,465
Total deposits	$ 2,213,821	$ 1,820,975

Deposits - Scheduled Maturities

Deposits - Scheduled Maturities of Certificates of Deposit (Detail) $ in Thousands	Dec. 31, 2020USD ($)
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
2021	$ 297,387
2022	50,672
2023	11,917
2024	4,419
2025	3,221
Thereafter	1,177
Total certificates of deposit	$ 368,793

Deposits - Additional Informati

Deposits - Additional Information (Detail) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Threshold for significant investments	$ 250,000	$ 250,000
Aggregate amount of certificates of deposit	$ 69,060,000	$ 74,813,000

Other Borrowings (Detail)

Other Borrowings (Detail) - Other Borrowings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Other Borrowings [Line Items]
Note payable	$ 5,539	$ 5,539
Note payable interest rate (percent)	3.83%	3.83%
Note payable leverage loan term	20 years	20 years
Note payable leverage loan payments year	7 years	7 years

Short-term FHLB Advances - Addi

Short-term FHLB Advances - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Advances from Federal Home Loan Banks [Abstract]
Short-term FHLB advances	$ 0	$ 0
Average volume of FHLB balances	8,081,000	17,000
Additional FHLB advances	787,232,000	738,955,000
Loans pledged through the Bank's blanket lien	$ 836,829,000	$ 768,549,000

Long-term FHLB Advances - Addit

Long-term FHLB Advances - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Advances from Federal Home Loan Banks [Abstract]
Long-term FHLB advances	$ 28,824	$ 40,620

Long-term FHLB Advances - Summa

Long-term FHLB Advances - Summary of Long-term Advances (Detail) $ in Thousands	Dec. 31, 2020USD ($)
Amount
2021	$ 1,174
2022	5,042
2023	3,066
2024	4,434
2025	11,296
Thereafter	3,812
Total long-term FHLB advances	$ 28,824
Weighted Average Rate
2021	2.04%
2022	2.08%
2023	1.37%
2024	1.76%
2025	1.64%
Thereafter	1.68%
Total long-term FHLB advances	1.73%

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Estimate of additional amounts to be reclassified as additional interest expense	$ 60
Net derivative liabilities	0
Agreement termination value	$ 0

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Fair Value of Derivative Instruments (Details)	Dec. 31, 2020USD ($)
Interest rate swaps
Derivatives, Fair Value [Line Items]
Netting adjustments	$ 0
Net derivative amounts	214,000
Netting adjustments	0
Net derivative amounts	58,000
Interest rate swaps | Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative asset - notional amount	40,000,000
Derivative assets	214,000
Derivative liabilities - notional amount	0
Derivative liabilities	0
Risk participation agreements | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset - notional amount	0
Derivative assets	0
Derivative liabilities - notional amount	10,000,000
Derivative liabilities	$ 58,000

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities - Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain Recognized in OCI	$ 176
Interest expense | Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from AOCI into Income	$ (44)
Interest expense | Interest rate swaps | Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Reclassified from AOCI into Income		$ (44)
Other noninterest income | Risk participation agreements | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Effect of derivatives not designated as hedging instruments on the Consolidated Statements of Income		$ 111

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal income tax statutory rate (percent)	21.00%	21.00%	21.00%	35.00%
Portion of retained earnings not treated for deferred federal income tax liability	$ 5,837	$ 5,837
Unrecorded deferred income tax liability	$ 1,985	$ 1,985

Income Taxes - Summarized Incom

Income Taxes - Summarized Income Tax (Benefit) Expense (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Current													$ 8,030	$ 6,123	$ 5,747
Deferred													(1,588)	137	2,137
NMTC													(400)	(400)	(400)
Impact of Tax Cuts and Jobs Act													0	0	(789)
Total income tax expense	$ 2,673	$ 2,168	$ 675	$ 526	$ 1,686	$ 1,303	$ 1,555	$ 1,316	$ 616	$ 2,107	$ 2,002	$ 1,970	$ 6,042	$ 5,860	$ 6,695

Income Taxes - Summarized Defer

Income Taxes - Summarized Deferred Tax Asset (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Provision for loan losses	$ 5,949	$ 3,752
Discount on purchased loans	1,146	1,842
Salary continuation plan	700	678
Mortgage servicing rights	80	95
Deferred compensation	5	52
Stock-based compensation	257	264
ASC 326 Adoption Impact	1,063	0
Other	65	101
Deferred tax assets	9,265	6,784
Deferred tax liabilities:
FHLB stock dividends	(64)	(108)
Accumulated depreciation	(3,457)	(2,974)
Intangible assets	(628)	(858)
Premium on investment securities acquired	0	0
Unrealized gain on securities available for sale	(1,356)	(184)
NMTC	(72)	(48)
Other	(105)	(96)
Deferred tax liabilities	(5,682)	(4,268)
Net deferred tax asset	$ 3,583	$ 2,516

Income Taxes - Provision for Fe

Income Taxes - Provision for Federal Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal tax based on statutory rate													$ 6,544	$ 7,089	$ 8,023
State tax based on statutory rate													42	34	82
(Decrease) increase resulting from:
NMTC													(400)	(400)	(400)
Effect of tax-exempt income													(136)	(128)	(171)
Changes in the cash surrender value of bank owned life insurance													(209)	(435)	(138)
Nondeductible share based compensation expense													162	177	191
Exercise of stock options													(8)	(599)	(131)
DTA adjustment – impact of Tax Act													0	0	(789)
Other													47	122	28
Total income tax expense	$ 2,673	$ 2,168	$ 675	$ 526	$ 1,686	$ 1,303	$ 1,555	$ 1,316	$ 616	$ 2,107	$ 2,002	$ 1,970	$ 6,042	$ 5,860	$ 6,695
Effective tax rate (percent)													19.60%	17.30%	17.50%

Commitments - Additional Inform

Commitments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020USD ($)
Commitments and Contingencies Disclosure [Abstract]
Loan commitments maturities period	1 year
Commitments which present an unusual risk	$ 0
Material losses anticipated	$ 0

Commitments - Summary of Outsta

Commitments - Summary of Outstanding Commitments to Originate Loans and to Advance Additional Amounts (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Standby letters of credit
Other Commitments [Line Items]
Contract Amount	$ 5,781	$ 6,098
Available portion of lines of credit
Other Commitments [Line Items]
Contract Amount	266,349	247,670
Undisbursed portion of loans in process
Other Commitments [Line Items]
Contract Amount	99,527	111,466
Commitments to originate loans
Other Commitments [Line Items]
Contract Amount	$ 139,471	$ 87,446

Regulatory Matters (Detail)

Regulatory Matters (Detail) - Home Bank N.A. $ in Thousands	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common equity tier 1 capital ratio, actual amount	$ 245,090	$ 240,176
Tier 1 risk-based capital, Actual amount	245,090	240,176
Total risk-based capital, Actual amount	267,254	258,044
Tier 1 leverage capital, Actual amount	$ 245,090	$ 240,176
Common equity tier 1 capital ratio, actual ratio (percent)	0.1392	0.1422
Tier 1 risk-based capital, Actual ratio (percent)	0.1392	0.1422
Total risk-based capital, Actual ratio (percent)	0.1518	0.1528
Tier 1 leverage capital, Actual ratio (percent)	0.0968	0.1117
Common equity tier 1 capital ratio, Minimum Capital Required - Basel III Fully Phased-In, Amount	$ 123,263	$ 118,213
Tier 1 risk-based capital, Minimum Capital Required - Basel III Fully Phased-In, Amount	149,677	143,545
Total risk-based capital, Minimum Capital Required - Basel III Fully Phased-In, Amount	184,895	177,320
Tier 1 leverage capital, Minimum Capital Required - Basel III Fully Phased-In, Amount	$ 101,247	$ 86,004
Common equity tier 1 capital ratio, Minimum Capital Required - Basel III Fully Phased-In (percent)	7.00%	7.00%
Tier 1 risk-based capital, Minimum Capital Required - Basel III Fully Phased-In (percent)	8.50%	8.50%
Total risk-based capital, Minimum Capital Required - Basel III Fully Phased-In (percent)	10.50%	10.50%
Tier 1 leverage capital, Minimum Capital Required - Basel III Fully Phased-In (percent)	4.00%	4.00%
Common equity tier 1 capital ratio, minimum required to be well capitalized under prompt corrective action provisions amount	$ 114,459	$ 109,769
Tier 1 risk-based capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, amount	140,872	135,101
Total risk-based capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, amount	176,090	168,876
Tier 1 leverage capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, amount	$ 126,559	$ 107,506
Common equity tier 1 capital ratio, minimum required to be well capitalized under prompt corrective action provisions, Ratio (percent)	6.50%	6.50%
Tier 1 risk-based capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (percent)	0.0800	0.0800
Total risk-based capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (percent)	0.1000	0.1000
Tier 1 leverage capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (percent)	0.0500	0.0500

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Detail) $ in Thousands	May 20, 2019	Dec. 31, 2017USD ($)	Sep. 30, 2015USD ($)	Feb. 28, 2014USD ($)	Dec. 31, 2020USD ($)securityemployee	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Aug. 31, 2020USD ($)
Benefit Plans [Line Items]
Eligibility to participate in ESOP based on service					6 months
Eligibility age to participate in ESOP					21 years
Contributions for the plan necessary to amortize the debt to the company, period					20 years
Compensation cost related to ESOP					$ 726	$ 1,085	$ 1,345
Fair value of the unearned ESOP shares					$ 7,746	12,245
401 (k) and Profit Sharing Plan
Benefit Plans [Line Items]
Percent of employee's pretax annual earnings allowed to be contributed into the plan (percent)					75.00%
Employer matching contribution as percentage of employee contributions made on first 2% of employee's pay (percent)					100.00%
Percent of employee's pay to be matched by employer (percent)					2.00%
Additional employer matching contribution on employee contributions between 2% and 6% (percent)					50.00%
Contributions made by company, amount					$ 964	919	$ 872
401 (k) and Profit Sharing Plan | Maximum
Benefit Plans [Line Items]
Percent of employee's pay to be matched by employer (percent)					6.00%
Salary Continuation Agreements
Benefit Plans [Line Items]
Post retirement liability outstanding					$ 3,331	$ 3,227
2007 Salary Continuation Agreements
Benefit Plans [Line Items]
Number of employees covered | employee					3
2007 Salary Continuation Agreements | Chief Executive Officer
Benefit Plans [Line Items]
Period of stated annual benefit					10 years
Vested period					10 years
Percent of period vested (percent)					100.00%
2007 Salary Continuation Agreements | Chief Credit Officer
Benefit Plans [Line Items]
Period of stated annual benefit					10 years
Period for which executive's beneficiary will receive upon death					120 months
Age after which employees will be entitled to a stated annual benefit					65 years
Period of separation from service					24 months
Delay in periods					6 months
2007 Salary Continuation Agreements | Former executive | American Bank
Benefit Plans [Line Items]
Contribution to salary agreement		$ 358
Payment period		14 years
2019 Salary Continuation Agreements | Chief Executive Officer
Benefit Plans [Line Items]
Period of stated annual benefit	10 years
Percent of period vested (percent)	100.00%
Age after which employees will be entitled to a stated annual benefit	65 years
2019 Salary Continuation Agreements | Chief Financial Officer
Benefit Plans [Line Items]
Period of stated annual benefit	10 years
Vested period	10 years
Age after which employees will be entitled to a stated annual benefit	65 years
Period of separation from service	24 months
Vested salary benefits due								$ 36
2014 Salary Continuation Agreements | Former executive | Britton & Koontz
Benefit Plans [Line Items]
Contribution to salary agreement				$ 465
Payment period				15 years
2015 Salary Continuation Agreements | Louisiana Bancorp, Inc.
Benefit Plans [Line Items]
Contribution to salary agreement			$ 1,200
Number of salary continuation agreements | security					2
Stated annual benefit for executive			10 years

Benefit Plans - Summary of Empl

Benefit Plans - Summary of Employee Stock Ownership Plan (Detail) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
ESOP Share Allocation [Roll Forward]
Shares allocated, beginning of year	303,395	284,290
Shares allocated during the year	35,708	35,708
Shares distributed during the year	(21,082)	(16,603)
Allocated shares held by ESOP trust as of year end	318,021	303,395
Unallocated shares	276,733	312,441
Total ESOP shares	594,754	615,836

Stock-based Payment Arrangeme_3

Stock-based Payment Arrangements - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum option term	10 years
Options outstanding (shares)	204,540	180,585	352,370	408,478
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Unrecognized compensation cost	$ 393
Unrecognized compensation cost, period for recognition	2 years 10 months 24 days
Compensation and benefits expense	$ 216	$ 200	$ 168
2009 Stock Option Plan | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares issuable under the Stock Option Plan	892,687
2009 Recognition and Retention Plan | Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares issuable under the Stock Option Plan	357,075
Percent of outstanding common to be approved for restricted stock awards under the RRP (percent)	4.00%
Award vesting period	5 years
Unrecognized compensation cost	$ 1,089
Compensation and benefits expense	573	$ 602	$ 573
Average cost of shares in open market required to fund the 2009 plan (in usd per share)					$ 11.81
Total cost of shares held by the 2009 plan	$ 22
2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (shares)	350,000

Stock-based Payment Arrangeme_4

Stock-based Payment Arrangements - Assumptions Made to Estimate Fair Value (Detail) - Stock Options	12 Months Ended
	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividends (percent)	3.95%
Expected volatility (percent)	24.65%
Risk-free interest rate (percent)	0.70%
Expected term (in years)	6 years 6 months

Stock-based Payment Arrangeme_5

Stock-based Payment Arrangements - Summary of Stock Option Activity (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Number of Options
Outstanding, Number of Option, Beginning Balance (shares)	180,585	352,370	408,478
Granted, Number of Options (shares)	35,850	38,180	28,790
Exercised, Number of Options (shares)	(4,625)	(198,786)	(83,348)
Forfeited, Number of Options (shares)	(7,270)	(11,179)	(1,550)
Outstanding, Number of Option, Ending Balance (shares)	204,540	180,585	352,370
Weighted Average Exercise Price [Abstract]
Outstanding, Weighted Average Exercise Price, Beginning Balance (in usd per share)	$ 30.33	$ 19.78	$ 16.64
Granted, Weighted-Average Exercise Price (in usd per share)	22.34	35.78	44.88
Exercised, Weighted-Average Exercise Price (in usd per share)	21.33	12.52	12.90
Forfeited, Weighted-Average Exercise Price (in usd per share)	29.47	33.13	28.34
Outstanding, Weighted Average Exercise Price, Ending Balance (in usd per share)	29.17	30.33	19.78
Weighted-Average Grant Date Fair Value
Outstanding, Weighted-Average Grant Date Fair Value, Beginning Balance (in usd per share)	6.57	5.05	4.46
Granted, Weighted-Average Grant Date Fair Value (in usd per share)	3.03	6.52	10.35
Exercised, Weighted-Average Grant Date Fair Value (in usd per share)	5.30	3.85	3.99
Forfeited, Weighted-Average Grant Date Fair Value (in usd per share)	5.58	6.79	5.59
Outstanding, Weighted-Average Grant Date Fair Value, Ending Balance (in usd per share)	$ 6.02	$ 6.57	$ 5.05
Exercisable, Number of Options (shares)	113,988	86,401	258,319
Exercisable, Weighted Average Exercise Price (in usd per share)	$ 27.07	$ 24.73	$ 14.65
Exercisable, Weighted-Average Grant Date Fair Value (in usd per share)	$ 6.16	$ 5.94	$ 4.27
Outstanding, Weighted Average Remaining Contractual Term	6 years 2 months 12 days	6 years 7 months 6 days	3 years 7 months 6 days
Exercisable, Weighted Average Remaining Contractual Term	4 years 9 months 18 days	5 years 1 month 6 days	2 years

Stock-based Payment Arrangeme_6

Stock-based Payment Arrangements - Unvested Restricted Stock Activity (Detail) - Restricted Stock Awards - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Number of Shares
Number of Shares, Beginning Balance (shares)	51,478	55,380	54,635
Granted, Number of Shares (shares)	17,305	19,145	16,345
Forfeited, Number of Shares (shares)	(5,183)	(4,336)	(195)
Released, Number of Shares (shares)	(19,247)	(18,711)	(15,405)
Number of Shares, Ending Balance (shares)	44,353	51,478	55,380
Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning Balance (in usd per share)	$ 35.73	$ 34.36	$ 29.26
Granted, Weighted-Average Grant Date Fair Value (in usd per share)	22.19	35.84	44.88
Forfeited, Weighted-Average Grant Date Fair Value (in usd per share)	33.06	36.01	30.79
Released, Weighted-Average Grant Date Fair Value (in usd per share)	32.77	31.79	27.46
Weighted-Average Grant Date Fair Value, Ending Balance (in usd per share)	$ 32.04	$ 35.73	$ 34.36

Earnings Per Share - Earnings P

Earnings Per Share - Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Numerator:
Income applicable to common shares	$ 10,580	$ 8,782	$ 2,921	$ 2,482	$ 6,606	$ 6,856	$ 6,580	$ 7,890	$ 8,089	$ 8,262	$ 7,776	$ 7,463	$ 24,765	$ 27,932	$ 31,590
Denominator:
Weighted average common shares outstanding (shares)													8,674	9,074	9,069
Effect of dilutive securities:
Weighted average common shares outstanding-assuming dilution (shares)													8,704	9,146	9,299
Earnings per common share (in usd per share)	$ 1.25	$ 1.01	$ 0.33	$ 0.27	$ 0.74	$ 0.76	$ 0.72	$ 0.86	$ 0.89	$ 0.91	$ 0.85	$ 0.83	$ 2.86	$ 3.08	$ 3.48
Earnings per common share-assuming dilution (in usd per share)	$ 1.24	$ 1.01	$ 0.33	$ 0.27	$ 0.73	$ 0.75	$ 0.72	$ 0.85	$ 0.87	$ 0.89	$ 0.83	$ 0.81	$ 2.85	$ 3.05	$ 3.40
Restricted Stock Awards
Effect of dilutive securities:
Restricted stock / Stock options (shares)													9	12	20
Stock Options
Effect of dilutive securities:
Restricted stock / Stock options (shares)													21	60	210

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Number of options and common stock not included in computing diluted earnings per share(in shares)	134,714	92,420	29,334

Related Party Transactions - Su

Related Party Transactions - Summary of Related Party Loan Activity (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Related party loan activity [Roll Forward]
Balance, beginning of year	$ 6,215
New loans	2,694
Repayments, net	(554)
Balance, end of year	$ 8,355

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - Management $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)SecurityLoan	Dec. 31, 2019USD ($)
Related Party Transaction [Line Items]
Number of related party loans not treated as impaired | SecurityLoan	0
Maximum limit of percent of shareholders equity related party loans to identified as impaired (percent)	5.00%
Related party deposits | $	$ 6,610	$ 13,887

Fair Value Measurements and D_3

Fair Value Measurements and Disclosures - Summary of Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	$ 254,752	$ 257,321
Derivative assets	214
U.S. agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	142,812	95,172
Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	75,620	142,451
Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	28,011	16,005
U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	6,255	3,693
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	2,054
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	214
Total	254,966
Derivative liabilities	58
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Derivative assets	0
Total	0
Derivative liabilities	0
Recurring | Level 1 | U.S. agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Recurring | Level 1 | Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Recurring | Level 1 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Recurring | Level 1 | U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Recurring | Level 1 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	254,752	257,321
Derivative assets	214
Total	254,966
Derivative liabilities	58
Recurring | Level 2 | U.S. agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	142,812	95,172
Recurring | Level 2 | Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	75,620	142,451
Recurring | Level 2 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	28,011	16,005
Recurring | Level 2 | U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	6,255	3,693
Recurring | Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	2,054
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Derivative assets	0
Total	0
Derivative liabilities	0
Recurring | Level 3 | U.S. agency mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Recurring | Level 3 | Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Recurring | Level 3 | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	0
Recurring | Level 3 | U.S. government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	0	$ 0
Recurring | Level 3 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at fair value	$ 0

Fair Value Measurements and D_4

Fair Value Measurements and Disclosures - Summary of Financial Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets
Foreclosed assets and ORE	$ 1,302	$ 4,156
Nonrecurring
Assets
Loans individually evaluated for impairment	7,473	7,365
Foreclosed assets and ORE	1,302	4,156
Total	8,775	11,521
Level 1 | Nonrecurring
Assets
Loans individually evaluated for impairment	0	0
Foreclosed assets and ORE	0	0
Total	0	0
Level 2 | Nonrecurring
Assets
Loans individually evaluated for impairment	0	0
Foreclosed assets and ORE	0	0
Total	0	0
Level 3 | Nonrecurring
Assets
Loans individually evaluated for impairment	7,473	7,365
Foreclosed assets and ORE	1,302	4,156
Total	$ 8,775	$ 11,521

Fair Value Measurements and D_5

Fair Value Measurements and Disclosures - Schedule of Significant Unobservable Inputs Used in Fair Value Measurement of Level 3 Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Foreclosed assets and ORE	$ 1,302	$ 4,156
Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually evaluated for impairment	7,473	7,365
Foreclosed assets and ORE	1,302	4,156
Level 3 | Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually evaluated for impairment	7,473	7,365
Foreclosed assets and ORE	$ 1,302	$ 4,156
Level 3 | Nonrecurring | Minimum | Collateral values, market discounts and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral discounts and discount rates (percent)	3.00%	0.00%
Level 3 | Nonrecurring | Minimum | Collateral values, market discounts and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral discounts and estimated costs to sell (percent)	6.00%	6.00%
Level 3 | Nonrecurring | Maximum | Collateral values, market discounts and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral discounts and discount rates (percent)	87.00%	84.00%
Level 3 | Nonrecurring | Maximum | Collateral values, market discounts and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral discounts and estimated costs to sell (percent)	42.00%	61.00%
Level 3 | Nonrecurring | Weighted Average | Collateral values, market discounts and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral discounts and discount rates (percent)	17.00%	13.00%
Level 3 | Nonrecurring | Weighted Average | Collateral values, market discounts and estimated costs to sell
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral discounts and estimated costs to sell (percent)	11.00%	14.00%

Fair Value Measurements and D_6

Fair Value Measurements and Disclosures - Summary of Fair Values of Company's Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial Assets
Cash and cash equivalents	$ 187,952	$ 39,847
Interest-bearing deposits in banks	349	449
Investment securities available for sale	254,752	257,321
Investment securities held to maturity	2,934	7,149
Mortgage loans held for sale	9,559	6,990
Total loans	1,946,991	1,696,493
Cash surrender value of BOLI	40,334	39,466
Derivative assets	214
Financial Liabilities
Deposits	2,213,821	1,820,975
Other borrowings	5,539	5,539
Long-term FHLB advances	28,824	40,620
Fair Value
Financial Assets
Cash and cash equivalents	187,952	39,847
Interest-bearing deposits in banks	349	449
Investment securities available for sale	254,752	257,321
Investment securities held to maturity	2,996	7,194
Mortgage loans held for sale	9,559	6,990
Total loans	1,957,705	1,690,308
Cash surrender value of BOLI	40,334	39,466
Derivative assets	214
Financial Liabilities
Deposits	2,216,002	1,821,868
Other borrowings	6,224	5,895
Long-term FHLB advances	29,662	40,580
Derivative liabilities	58
Carrying Amount
Financial Liabilities
Derivative liabilities	58
Level 1 | Fair Value
Financial Assets
Cash and cash equivalents	187,952	39,847
Interest-bearing deposits in banks	349	449
Investment securities available for sale	0	0
Investment securities held to maturity	0	0
Mortgage loans held for sale	0	0
Total loans	0	0
Cash surrender value of BOLI	40,334	39,466
Derivative assets	0
Financial Liabilities
Deposits	0	0
Other borrowings	0	0
Long-term FHLB advances	0	0
Derivative liabilities	0
Level 2 | Fair Value
Financial Assets
Cash and cash equivalents	0	0
Interest-bearing deposits in banks	0	0
Investment securities available for sale	254,752	257,321
Investment securities held to maturity	2,996	7,194
Mortgage loans held for sale	9,559	6,990
Total loans	1,950,232	1,682,943
Cash surrender value of BOLI	0	0
Derivative assets	214
Financial Liabilities
Deposits	2,216,002	1,821,868
Other borrowings	6,224	5,895
Long-term FHLB advances	29,662	40,580
Derivative liabilities	58
Level 3 | Fair Value
Financial Assets
Cash and cash equivalents	0	0
Interest-bearing deposits in banks	0	0
Investment securities available for sale	0	0
Investment securities held to maturity	0	0
Mortgage loans held for sale	0	0
Total loans	7,473	7,365
Cash surrender value of BOLI	0	0
Derivative assets	0
Financial Liabilities
Deposits	0	0
Other borrowings	0	0
Long-term FHLB advances	0	$ 0
Derivative liabilities	$ 0

Condensed Parent Company Only_3

Condensed Parent Company Only Financial Statements - Condensed Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 187,952	$ 39,847
Total Assets	2,591,850	2,200,465
Liabilities	2,270,008	1,884,136
Shareholders’ equity	321,842	316,329	$ 304,040	$ 277,871
Total Liabilities and Shareholders’ Equity	2,591,850	2,200,465
Parent Company
Assets
Cash and cash equivalents	3,048	6,400
Investment in subsidiary	313,476	305,340
Other assets	5,366	4,613
Total Assets	321,890	316,353
Liabilities	48	24
Shareholders’ equity	321,842	316,329
Total Liabilities and Shareholders’ Equity	$ 321,890	$ 316,353

Condensed Parent Company Only_4

Condensed Parent Company Only Financial Statements - Condensed Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating income
Interest income	$ 27,368	$ 25,842	$ 25,670	$ 25,249	$ 25,444	$ 25,474	$ 25,921	$ 25,369	$ 25,903	$ 26,109	$ 25,575	$ 24,725	$ 104,129	$ 102,208	$ 102,312
Operating expenses
Income before income tax expense	13,253	10,950	3,596	3,008	8,292	8,159	8,135	9,206	8,705	10,369	9,778	9,433	30,807	33,792	38,285
Income tax benefit	(2,673)	(2,168)	(675)	(526)	(1,686)	(1,303)	(1,555)	(1,316)	(616)	(2,107)	(2,002)	(1,970)	(6,042)	(5,860)	(6,695)
Net Income	$ 10,580	$ 8,782	$ 2,921	$ 2,482	$ 6,606	$ 6,856	$ 6,580	$ 7,890	$ 8,089	$ 8,262	$ 7,776	$ 7,463	24,765	27,932	31,590
Parent Company
Operating income
Interest income													0	0	0
Dividend from subsidiary													18,200	21,000	0
Total operating income													18,200	21,000	0
Operating expenses
Other expenses													234	192	219
Total operating expenses													234	192	219
Income before income tax expense													17,966	20,808	(219)
Income tax benefit													49	40	44
Income (loss) before equity in undistributed earnings of subsidiary													18,015	20,848	(175)
Undistributed earnings of subsidiary													6,750	7,084	31,765
Net Income													$ 24,765	$ 27,932	$ 31,590

Condensed Parent Company Only_5

Condensed Parent Company Only Financial Statements - Condensed Statements of Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities
Net income	$ 24,765	$ 27,932	$ 31,590
Adjustments to reconcile net income to net cash provided by operating activities:
Non-cash compensation	2,050	2,414	2,540
(Increase) decrease in accrued interest receivable and other assets	(601)	58	(8,970)
Increase (decrease) in accrued expenses and other liabilities	3,651	5,109	(88)
Net cash provided by operating activities	49,030	43,938	47,128
Cash Flows from Financing Activities
Proceeds from exercise of stock options	30	2,231	914
Payment of dividends on common stock	(7,903)	(7,898)	(6,706)
Issuance of stock under incentive plans	(13)	157	70
Purchase of Company’s common stock	(14,013)	(15,445)	(1,194)
Net cash provided by (used in) financing activities	359,111	8,620	(113,243)
Net change in cash and cash equivalents	148,105	(19,771)	(90,800)
Cash and cash equivalents at beginning of year	39,847	59,618	150,418
Cash and cash equivalents at end of year	187,952	39,847	59,618
Parent Company
Cash Flows from Operating Activities
Net income	24,765	27,932	31,590
Adjustments to reconcile net income to net cash provided by operating activities:
Non-cash compensation	1,261	1,613	1,799
(Increase) decrease in accrued interest receivable and other assets	(753)	(1,118)	(1,173)
Undistributed earnings in subsidiary	(6,750)	(7,084)	(31,765)
Increase (decrease) in accrued expenses and other liabilities	24	14	(68)
Net cash provided by operating activities	18,547	21,357	383
Cash Flows from Financing Activities
Proceeds from exercise of stock options	30	2,231	914
Payment of dividends on common stock	(7,903)	(7,898)	(6,706)
Issuance of stock under incentive plans	(13)	157	70
Purchase of Company’s common stock	(14,013)	(15,445)	(1,194)
Net cash provided by (used in) financing activities	(21,899)	(20,955)	(6,916)
Net change in cash and cash equivalents	(3,352)	402	(6,533)
Cash and cash equivalents at beginning of year	6,400	5,998	12,531
Cash and cash equivalents at end of year	$ 3,048	$ 6,400	$ 5,998

Consolidated Quarterly Result_3

Consolidated Quarterly Results of Operations (unaudited) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Data [Abstract]
Interest income	$ 27,368	$ 25,842	$ 25,670	$ 25,249	$ 25,444	$ 25,474	$ 25,921	$ 25,369	$ 25,903	$ 26,109	$ 25,575	$ 24,725	$ 104,129	$ 102,208	$ 102,312
Total interest expense	2,169	2,570	3,253	3,926	4,186	4,333	4,046	3,647	3,248	2,599	2,239	2,220	11,918	16,212	10,306
Net interest income	25,199	23,272	22,417	21,323	21,258	21,141	21,875	21,722	22,655	23,510	23,336	22,505	92,211	85,996	92,006
Provision for loan losses	0	0	6,471	6,257	713	1,146	765	390	1,612	786	581	964	12,728	3,014	3,943
Net interest income after provision for loan losses	25,199	23,272	15,946	15,066	20,545	19,995	21,110	21,332	21,043	22,724	22,755	21,541	79,483	82,982	88,063
Noninterest income	4,050	3,794	3,103	3,358	3,499	4,774	2,977	3,165	3,279	3,341	3,345	3,482	14,305	14,415	13,447
Noninterest expense	15,996	16,116	15,453	15,416	15,752	16,610	15,952	15,291	15,617	15,696	16,322	15,590	62,981	63,605	63,225
Income before income tax expense	13,253	10,950	3,596	3,008	8,292	8,159	8,135	9,206	8,705	10,369	9,778	9,433	30,807	33,792	38,285
Income tax expense	2,673	2,168	675	526	1,686	1,303	1,555	1,316	616	2,107	2,002	1,970	6,042	5,860	6,695
Net Income	$ 10,580	$ 8,782	$ 2,921	$ 2,482	$ 6,606	$ 6,856	$ 6,580	$ 7,890	$ 8,089	$ 8,262	$ 7,776	$ 7,463	$ 24,765	$ 27,932	$ 31,590
Basic (in usd per share)	$ 1.25	$ 1.01	$ 0.33	$ 0.27	$ 0.74	$ 0.76	$ 0.72	$ 0.86	$ 0.89	$ 0.91	$ 0.85	$ 0.83	$ 2.86	$ 3.08	$ 3.48
Diluted (in usd per share)	$ 1.24	$ 1.01	$ 0.33	$ 0.27	$ 0.73	$ 0.75	$ 0.72	$ 0.85	$ 0.87	$ 0.89	$ 0.83	$ 0.81	$ 2.85	$ 3.05	$ 3.40