Red River Bancshares (RRBI) 10-K 27 Mar 20 2019 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Mar. 16, 2020	Jun. 28, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-38888
Entity Registrant Name	Red River Bancshares, Inc.
Entity Incorporation, State or Country Code	LA
Entity Tax Identification Number	72-1412058
Entity Address, Address Line One	1412 Centre Court Drive, Suite 501,
Entity Address, City or Town	Alexandria,
Entity Address, State or Province	LA
Entity Address, Postal Zip Code	71301
City Area Code	318
Local Phone Number	561-5028
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	RRBI
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 Public Float			$ 230.7
Entity Filer Category	Non-accelerated Filer
Entity Small Business Category	true
Entity Emerging Growth Category	true
Entity Ex Transition Period	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		7,322,532
Entity Central Index Key	0001071236
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus (i.e. Q1,Q2,Q3,FY)	FY
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
ASSETS
Cash and due from banks	$ 25,937	$ 34,070
Interest-bearing deposits in other banks	107,355	117,836
Total Cash and Cash Equivalents	133,292	151,906
Securities available-for-sale	335,573	307,877
Equity securities	3,936	3,821
Nonmarketable equity securities	1,350	1,299
Loans held for sale	5,089	2,904
Loans held for investment	1,438,924	1,328,438
Allowance for loan losses	(13,937)	(12,524)
Premises and equipment, net	41,744	39,690
Accrued interest receivable	5,251	5,013
Bank-owned life insurance	21,845	21,301
Intangible assets	1,546	1,546
Right-of-use assets	4,553
Other assets	9,059	9,317
Total Assets	1,988,225	1,860,588
LIABILITIES
Noninterest-bearing deposits	584,915	547,880
Interest-bearing deposits	1,136,205	1,097,703
Total Deposits	1,721,120	1,645,583
Junior subordinated debentures	0	11,341
Accrued interest payable	2,222	1,757
Lease liabilities	4,603
Accrued expenses and other liabilities	8,382	8,204
Total Liabilities	1,736,327	1,666,885
COMMITMENTS AND CONTINGENCIES	0	0
STOCKHOLDERS' EQUITY
Preferred stock, no par value: Authorized - 1,000,000 shares; None Issued and Outstanding	0	0
Common stock, no par value: Authorized - 30,000,000 shares; Issued and Outstanding - 7,306,221 and 6,627,358 shares	68,082	41,094
Additional paid-in capital	1,269	1,042
Retained earnings	182,571	159,073
Accumulated other comprehensive income (loss)	(24)	(7,506)
Total Stockholders' Equity	251,898	193,703
Total Liabilities and Stockholders' Equity	$ 1,988,225	$ 1,860,588

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares, issued (in shares)	7,306,221	6,627,358
Common stock, shares, outstanding (in shares)	7,306,221	6,627,358

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
INTEREST AND DIVIDEND INCOME
Interest and fees on loans	$ 64,570	$ 58,747
Interest on securities	7,241	6,951
Interest on federal funds sold	753	356
Interest on deposits in other banks	1,127	798
Dividends on stock	34	34
Total Interest and Dividend Income	73,725	66,886
INTEREST EXPENSE
Interest on deposits	9,701	7,084
Interest on other borrowed funds	0	7
Interest on junior subordinated debentures	385	558
Total Interest Expense	10,086	7,649
Net Interest Income	63,639	59,237
Provision for loan losses	1,810	1,990
Net Interest Income After Provision for Loan Losses	61,829	57,247
NONINTEREST INCOME
Service charges on deposit accounts	4,573	4,582
Debit card income, net	3,095	2,986
Mortgage loan income	3,002	2,107
Brokerage income	2,125	1,944
Loan and deposit income	1,521	1,359
Bank-owned life insurance income	544	732
Gain (Loss) on equity securities	115	(85)
Gain (Loss) on sale of securities	18	32
SBIC income	819	509
Other income	158	365
Total Noninterest Income	15,970	14,531
OPERATING EXPENSES
Personnel expenses	27,800	26,094
Occupancy and equipment expenses	4,976	4,500
Technology expenses	2,293	2,070
Advertising	1,025	762
Other business development expenses	1,107	1,127
Data processing expense	1,882	1,386
Other taxes	1,579	1,327
Loan and deposit expenses	1,148	852
Legal and professional expenses	1,541	1,422
Regulatory assessment expense	351	642
Other operating expenses	3,633	3,240
Total Operating Expenses	47,335	43,422
Income Before Income Tax Expense	30,464	28,356
Income tax expense	5,640	5,300
Net Income	$ 24,824	$ 23,056
EARNINGS PER SHARE
Basic (in dollars per share)	$ 3.51	$ 3.43
Diluted (in dollars per share)	$ 3.49	$ 3.41

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 24,824	$ 23,056
Other comprehensive income (loss):
Unrealized net gains (loss) on securities arising during period	9,489	(2,727)
Tax effect	(1,993)	557
(Gain) loss on sale of securities included in net income	(18)	(32)
Tax effect	4	7
Total change in other comprehensive income (loss)	7,482	(2,195)
Comprehensive Income	$ 32,306	$ 20,861

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Common Stock		Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of period (in shares) at Dec. 31, 2017	[1]		6,721,146
Balance in the beginning of period at Dec. 31, 2017	[1]	$ 178,103	$ 45,539		$ 849	$ 137,100	$ (5,385)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		23,056			0	23,056
Stock incentive plan		193			193
Issuance of restricted shares of common stock through stock incentive plan, net (in shares)	[1]		6,750
Issuance of restricted shares of common stock through stock incentive plan, net	[1]	$ 0
Issuance of shares of common stock through exercise of stock options (in shares)		5,500	5,010	[1]
Issuance of shares of common stock through exercise of stock options	[1]	$ 53	$ 53
Issuance of shares of common stock as board compensation (in shares)	[1]		2,452
Issuance of shares of common stock as board compensation	[1]	92	$ 92
Repurchase of shares of common stock (in shares)			(108,000)
Repurchase of shares of common stock		(4,590)	$ (4,590)
Cash dividend	[1]	(1,009)				(1,009)
Other comprehensive income (loss)		$ (2,195)					(2,195)
Balance at the end of period (in shares) at Dec. 31, 2018		6,627,358	6,627,358
Balance at the end of period at Dec. 31, 2018		$ 193,703	$ 41,094		1,042	159,073	(7,506)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		24,824				24,824
Stock incentive plan		227			227	0
Issuance of shares of common stock through IPO (in shares)			663,320
Issuance of shares of common stock through IPO		26,812	$ 26,812
Issuance of restricted shares of common stock through stock incentive plan, net (in shares)			5,975
Issuance of restricted shares of common stock through stock incentive plan, net		$ 0
Issuance of shares of common stock through exercise of stock options (in shares)		7,500	7,200
Issuance of shares of common stock through exercise of stock options		$ 80	$ 80
Issuance of shares of common stock as board compensation (in shares)			2,368
Issuance of shares of common stock as board compensation		96	$ 96
Cash dividend		(1,326)				(1,326)
Other comprehensive income (loss)		$ 7,482					7,482
Balance at the end of period (in shares) at Dec. 31, 2019		7,306,221	7,306,221
Balance at the end of period at Dec. 31, 2019		$ 251,898	$ 68,082		$ 1,269	$ 182,571	$ (24)
[1]	Adjusted to give effect to the 2018 2 -for-1 stock split

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical)	1 Months Ended		12 Months Ended
	Feb. 28, 2019$ / shares	May 31, 2018$ / shares	Dec. 31, 2019$ / shares	Dec. 31, 2018$ / shares
Statement of Stockholders' Equity [Abstract]
Conversion ratio				2
Cash dividends (in dollars per share)	$ 0.20	$ 0.15	$ 0.20	$ 0.15

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 24,824	$ 23,056
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	1,733	1,659
Amortization	619	382
Share-based compensation earned	227	193
Share-based board compensation earned	87	96
(Gain) Loss on other assets owned	(18)	(243)
Net (accretion) amortization on securities AFS	1,380	1,311
Net (accretion) amortization on securities HTM	0	11
Gain on sale of securities AFS	(18)	(32)
Provision for loan losses	1,810	1,990
Deferred income tax (benefit) expense	(556)	(452)
Net (increase) decrease in loans HFS	(2,185)	(1,037)
Net (increase) decrease in accrued interest receivable	(238)	(82)
Net (increase) decrease in BOLI	(544)	(732)
Net increase (decrease) in accrued interest payable	465	254
Other operating activities, net	(1,143)	(359)
Net cash provided by (used in) operating activities	26,443	26,015
Activity in securities AFS:
Sales	58,859	5,282
Maturities, prepayments, and calls	67,144	52,692
Purchases	(145,589)	(20,728)
Activity in securities HTM:
Maturities, prepayments, and calls	0	1,235
Purchase of nonmarketable equity securities	(51)	(29)
Net (increase) decrease in loans HFI	(112,574)	(82,923)
Proceeds from the settlement of insurance claims	0	868
Proceeds from sales of foreclosed assets	1,164	1,389
Purchases of premises and equipment	(3,772)	(5,432)
Net cash used in investing activities	(134,819)	(47,646)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in deposits	75,537	119,598
Repayments of other borrowed funds	0	(182)
Redemption of junior subordinated debentures	(11,341)	0
Payment to repurchase common stock	0	(4,590)
Proceeds from exercise of stock options	80	53
Proceeds from initial public offering, net	26,812	0
Cash dividends	(1,326)	(1,009)
Net cash provided by financing activities	89,762	113,870
Net change in cash and cash equivalents	(18,614)	92,239
Cash and cash equivalents - beginning of year	151,906	59,667
Cash and cash equivalents - end of year	133,292	151,906
Cash paid during the year for:
Interest	9,621	7,395
Income taxes	6,286	5,503
Initial measurement and recognition of operating lease assets in exchange for lease liabilities	4,954	0
SUPPLEMENTAL INFORMATION FOR NON-CASH INVESTING AND FINANCING ACTIVITIES
Assets acquired in settlement of loans	1,691	1,790
Transfers of investment securities between HTM and AFS	0	7,745
Unsettled securities AFS purchases at year-end	$ 965	$ 0

Business and Summary of Signifi

Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Business and Summary of Significant Accounting Policies	Business and Summary of Significant Accounting Policies The accounting and reporting policies of the Company conform to GAAP and the prevailing practices within the banking industry. A summary of significant accounting policies is as follows: Business The Company is a bank holding company headquartered in Alexandria, Louisiana. The Company's wholly owned bank subsidiary, Red River Bank, is a Louisiana state-chartered bank that provides a fully integrated suite of banking products and services tailored to the needs of commercial and retail customers. Red River Bank operates from a network of 25 banking centers throughout Louisiana. Banking centers are located in the following Louisiana markets: Central Louisiana, which includes the Alexandria MSA; Northwest Louisiana, which includes the Shreveport-Bossier City MSA; Southeast Louisiana, which includes the Baton Rouge MSA; Southwest Louisiana, which includes the Lake Charles MSA; and the Northshore, which includes Covington. Basis of Presentation The consolidated financial statements include the accounts of the Company and all other entities in which the Company has controlling interest. All significant intercompany accounts and transactions have been eliminated in consolidation. Non-Bank Subsidiaries Red River Bank's consolidated financial statements include its wholly owned subsidiaries Rivermark Properties, LLC and Source BIDCO. The Bank dissolved Source BIDCO in the first quarter of 2020. The Company sponsored three trusts that were not consolidated. These trusts were utilized for the issuance of trust preferred securities. The three trusts were terminated during 2019. For more information on these trusts, see "Note 7. Junior Subordinated Debentures." Operating Segments While the chief decision-makers monitor the revenue streams of the various products and services, operations are managed and financial performance is evaluated on a company-wide basis. Operating segments are aggregated into one as operating results for all segments are similar. Accordingly, all of the financial service operations are considered by management to be aggregated in one reportable operating segment. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at 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. Acquisition Accounting The Company accounts for its acquisitions under ASC Topic 805, Business Combinations, which requires the use of the acquisition method of accounting. Purchased assets, including loans, and assumed liabilities are recorded at their respective acquisition date fair values. Fair values are subject to refinement up to one year after the closing date of an acquisition as information relative to closing date fair values becomes available. Loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in ASC Topic 820, Fair Value Measurements and Disclosures. The fair value estimates associated with the loans include estimates related to expected prepayments and the amount and timing of expected principal, interest, and other cash flows. Acquired loans for which all contractual cash flows are expected to be received are accounted for under the accounting guidance found in ASC Topic 310-20, Receivables - Nonrefundable Fees and Other Costs. Acquired loans with evidence of credit deterioration are accounted for under the accounting guidance found in ASC Topic 310-30, Receivables - Loans and Debt Securities Acquired with Deteriorated Credit Quality. There is no carryover of related allowance for loan losses at the acquisition date as assumptions regarding credit risk are incorporated in the valuation process. However, subsequent to acquisition, the acquired loan portfolio is periodically reviewed, and an allowance for loan losses may be established for probable losses incurred after the acquisition date. Interest-Bearing Deposits in Other Banks Interest-bearing deposits in other banks consist of money market and checking accounts and are carried at cost. Securities All debt securities of the Company as of December 31, 2019 , were classified as AFS and are recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income, net of tax. Realized gains and losses on the sale of securities are determined using the specific-identification method. Purchased premiums and discounts are recognized in interest income using the interest method over the term of the securities. Equity securities include a CRA mutual fund owned by the Company, which subsequent to the adoption of ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10) on January 1, 2018, is carried at fair value with any periodic changes in value recorded through the statements of income. Prior to the adoption of this standard, equity securities were included in AFS securities. Declines in the fair value of HTM and AFS debt securities below their cost that are deemed to be other-than-temporary are reflected in earnings as realized losses to the extent the losses are credit related. FASB issued accounting guidance related to the recognition and presentation of OTTI. The accounting guidance specifies that if (a) a company does not have the intent to sell a debt security prior to recovery; and (b) it is more likely than not that it will not have to sell the debt security prior to recovery, the security would not be considered other-than-temporarily impaired unless there is a credit loss. When an entity does not intend to sell the security, and it is more likely than not that the entity will not have to sell the security before recovery of its cost basis, the entity will recognize the credit component of an OTTI of a debt security in earnings and the remaining portion in other comprehensive income. For HTM debt securities, the amount of OTTI recorded in other comprehensive income for the noncredit portion of an OTTI should be amortized over the remaining life of the security based on the timing of its future estimated cash flows. Nonmarketable Equity Securities Nonmarketable equity securities include investments in the FHLB and First National Banker’s Bank and are carried at cost. Loans Held for Sale Residential mortgage loans originated and intended for sale are carried at the lower of cost or estimated fair value on an individual basis. These mortgage loans are pre-sold prior to funding. Therefore, management believes there to be minimal risk of loss associated with these assets. Loans Held for Investment Loans that management has the intent and ability to hold, for the foreseeable future or until maturity or payoff, are held for investment and carried at their principal amount outstanding, net of deferred loan fees. Interest income on loans is accrued on the principal amount outstanding except for those loans that are classified as nonaccrual. Loan origination fees, net of certain direct costs, of $24,000 and $8,000 as of December 31, 2019 and 2018 , respectively, were deferred and recognized over the estimated lives of the related loans as an adjustment to the loans’ effective yield. Loans are placed on nonaccrual when management determines that a borrower may be unable to meet future contractual payments as they become due or when such loans become 90 days past due, unless they are well secured and in the process of collection. When a loan is placed on nonaccrual, uncollected accrued interest is reversed, reducing interest income, and future income accrual is discontinued. Subsequent payments, if any, of interest and fees are applied as reductions to the loan’s outstanding principal balance. Once the principal balance of a loan placed on nonaccrual has been fully recovered, subsequent payments received are recognized as income on a cash basis. Loans are returned to accrual status when the principal and interest amounts contractually due are brought current and future payments are reasonably assured. A loan is charged-off to the allowance for loan losses in full when management is relatively certain that principal and interest will be uncollectible. Management may elect to partially charge-off a loan to adjust the principal balance to the net realizable value of the collateral that secures the loan. When a partial charge-off is made, the remaining balance of the loan is placed on nonaccrual. Recoveries of amounts previously charged-off, if any, are credited to the allowance for loan losses until the principal balance of the loan is fully recovered. Any subsequent payments are recognized as income. Allowance for Loan Losses The allowance for loan losses provides for known and inherent losses in the loan portfolio based upon management’s best assessment of the loan portfolio at each balance sheet date. It is maintained at a level estimated to be adequate to absorb potential losses through periodic charges to the provision for loan losses. The allowance for loan losses consists of specific and general reserves. Specific reserves relate to loans classified as impaired. Loans are considered impaired when, based on current information and events, it is probable that the Bank will be unable to collect all amounts due in accordance with the contractual terms of the loan. Impaired loans include TDRs and performing and nonperforming loans. Impaired loans are reviewed individually, and a specific allowance is allocated, if necessary, based on evaluation of either the fair value of the collateral underlying the loan or the present value of future cash flows calculated using the loan’s existing interest rate. General reserves relate to the remainder of the loan portfolio, including overdrawn deposit accounts, and are based on evaluation of a number of factors, such as current economic conditions, the quality and composition of the loan portfolio, loss history, and other relevant factors. The Bank’s loans are generally secured by specific items of collateral including real property, consumer assets, and business assets. Although the Bank has a diversified loan portfolio, a substantial portion of its borrowers’ ability to honor their contractual repayment obligations is dependent on changing economic conditions. Because of the uncertainties associated with economic conditions, collateral values, and future cash flows on impaired loans, it is reasonably possible that management’s estimate of loan losses in the loan portfolio and the amount of the allowance needed may change in the future. The determination of the allowance for loan losses is, in a large part, based on estimates that are particularly susceptible to significant changes in the economic environment and market conditions. In situations where the repayment of a loan is dependent on the value of the underlying collateral, an independent appraisal of the collateral’s current market value is customarily obtained and used in the determination of the allowance for loan loss. While management uses available information to recognize losses on loans, further reductions in the carrying amounts of loans may be necessary based on changes in economic conditions. Also regulatory agencies, as an integral part of their examination process, periodically review management’s assessments of the adequacy of the allowance for loan losses. Such agencies may require the Bank to recognize additional losses based on their judgments about information available to them at the time of their examination. Foreclosed Assets Assets acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value less estimated cost to sell at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management, and the assets are carried at the lower of carrying amount or fair value less estimated cost to sell. Foreclosed assets are included in other assets on the consolidated balance sheets. The balance of foreclosed assets was $1.1 million and $646,000 as of December 31, 2019 and 2018 , respectively. Credit Related Financial Information In the ordinary course of business, the Bank has entered into commitments to extend credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they are funded. Premises and Equipment, Net Premises and equipment are stated at cost less accumulated depreciation, which is computed using the straight-line method over the estimated useful lives of the assets, which range from 3 to 39 years. Intangible Assets Intangible assets consist of goodwill. Goodwill represents the excess purchase price over the fair value of net assets acquired in business acquisitions. Goodwill is not amortized but rather evaluated for impairment annually. The Company performed its annual impairment test of goodwill for 2019 and 2018 as required by ASC 350, Intangibles - Goodwill and Other. The evaluation indicated no impairment of the Company’s goodwill. Stock-Based Compensation Plans The Company has adopted stock incentive plans that provide for the granting of stock-based payment arrangements for key employees and non-employee members of the Company’s Board of Directors. The Company accounts for the stock incentive plans in accordance with applicable accounting guidance. Under the fair value recognition provisions of this guidance, stock-based compensation cost is measured at the grant date based on the fair value of the award and recognized as expense on a straight-line basis over the requisite service period, which is the vesting period. The options granted under these plans are to purchase common stock at an exercise price not less than the fair market value of the common stock at the date of the grant. The options vest and become exercisable in twenty percent increments over a five -year period. The restricted stock granted under these plans provide common stock to recipients at the grant date. The restrictions vest in twenty percent increments over a five -year period. The Company recognizes forfeitures as they occur. The Company has a Director Compensation Program which allows directors the option of receiving payment for director fees in Company stock. Board compensation expense is recorded when board service is rendered. Income Tax The provision for income tax is based on taxes payable or receivable for the current year and deferred taxes on temporary differences between the tax bases of assets and liabilities and their reported amounts in the financial statements. Deferred tax assets and liabilities are included in the financial statements at currently enacted income tax rates applicable to the period in which the deferred tax assets and liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. The Company has adopted the provisions of accounting guidance related to accounting for uncertainty in income taxes. This interpretation clarifies that the benefit of a position taken or expected to be taken in a tax return should be recognized in a company’s financial statements when it is more likely than not that the position will be sustained based on technical merits. The Company recognizes interest and penalties on income taxes as a component of income tax expense. The effect on deferred tax assets of a change in tax rate is recognized in income as part of income tax expense for the period that includes the enactment date. As a result of the enactment in 2017 of the Tax Reform Act, deferred tax assets and liabilities have been measured as of December 31, 2019 and 2018 , using the 21.0% corporate tax rate. For the impact on net income, see "Note 9. Income Tax Expense." Earnings per Common Share Basic EPS is computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period, after giving retroactive effect to stock splits. Diluted EPS includes accrued but unissued shares relating to the Directors’ Compensation Program, stock options, and restricted stock determined using the treasury stock method. A reconciliation of the weighted-average shares used in calculating basic EPS and diluted EPS for the reported periods is provided in "Note 17. Earnings Per Common Share." Treasury Stock On January 1, 2015, the Louisiana Business Corporation Act (“the Act”) became effective. Under provisions of the Act, there is no concept of “Treasury Shares.” Rather, shares purchased by the Company constitute authorized but unissued shares. Accordingly, the Company’s consolidated balance sheets reflect the cost of shares purchased by the Company within common stock. Comprehensive Income Comprehensive income is the change in stockholders’ equity during the period from transactions and other events and circumstances from non-owner sources. Other comprehensive income includes unrealized net gains (losses), net of taxes, on AFS securities. Cash and Cash Equivalents Cash and cash equivalents consist of cash and due from banks and interest-bearing deposits in other banks. Advertising Costs Advertising costs are expensed as incurred. Revenue Recognition Effective January 1, 2018, the Company adopted ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) and all subsequent ASUs that modified Topic 606 . As the standard does not apply to revenue associated with receivables or financial instruments, net interest income, gains and losses from securities, and income from BOLI are not impacted by the standard. The Company has identified certain recurring revenue streams related to noninterest income which are within the scope of Topic 606 . In-scope revenue streams are summarized based on the timing of revenue recognition as follows: • Revenue earned at a point in time - Fee income (including wire transfer, check ordering, and other transactional fees), NSF/OD Charges, ATM/Card Fee Income (including ATM transaction fees and credit and debit card interchange income), and brokerage income. Revenue is recorded as transactions occur or services are provided to customers. Revenue recognized under these contracts totaled approximately $12.5 million and $12.0 million for the years ended December 31, 2019 and 2018, respectively. The Company is the principal in each of these contracts with the exception of credit and debit card interchange fees, online transaction interchange fees, sweep income, and brokerage services income, in which case the Company is acting as the agent and records revenue net of expenses paid. • Revenue earned over time (generally under a monthly contract) - Debit card agreement and safe deposit box fees. Revenue is recorded in the period transactions occur or services are rendered to the customer. The Company is the principal in each of these contracts. Revenue recognized under these contracts totaled approximately $319,000 and $317,000 for the period ended December 31, 2019 and 2018, respectively. There are no significant judgments relating to the amount and timing of revenue recognition for revenue streams within the scope of Topic 606 . Due to the nature of the services we provide to our customers, we do not incur costs to obtain contracts, and there are no material incremental costs to fulfill these contracts that should be capitalized. Additionally, there are no material contract assets or receivables as the Company does not typically enter into long-term revenue contracts with customers. As of December 31, 2019 and 2018, the Bank had a $845,000 and $1.0 million , respectively, of contract liability which is reported in accrued expenses and other liabilities. During the years ended December 31, 2019 and 2018, the Bank recognized $175,000 of revenue relating to this contract liability and expects to recognize the remaining liability as revenue ratably through October 2024. The implementation of the new standard did not have a material impact on the measurement or recognition of revenue for any of the identified in-scope revenue streams, and a cumulative effect adjustment to opening retained earnings was not necessary. Results for reporting periods beginning after January 1, 2018, are presented under Topic 606 , using the modified retrospective transition method. Accounting Standards Adopted in 2019 A SU No. 2016-02, Leases (Topic 842) . The primary purpose of this ASU was to increase the transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet requiring more disclosures related to leasing transactions. ASU 2016-02 (Topic 842) and the related amendments using the modified retrospective approach was adopted as of January 1, 2019. The Company recorded right-of-use assets and corresponding lease liabilities of $4.9 million at the time of adoption. The required disclosures are included in "Note 8. Leases" of these audited consolidated financial statements. ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. ASU 2017-12 amends the guidance to better align an entity's risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. These amendments will improve the transparency of information about an entity's risk management activities and simplify the application of hedge accounting. ASU 2017-12 became effective for the Company on January 1, 2019, and did not have a material impact on the Company's financial statements. Issued but Not Adopted Accounting Standards ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The guidance issued in this update simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, and the recognition for deferred tax liabilities for outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted tax changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. ASU 2019-12 is effective for annual periods beginning after December 15, 2020, with early adoption permitted. The adoption of this guidance is not expected to have a material impact on the consolidated financial statements. ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. This ASU eliminates, adds, and modifies certain disclosure requirements for fair value measurements as part of its disclosure framework project. The standard is effective for all entities for financial statements issued for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted. The adoption of this guidance is not expected to have a material impact on the consolidated financial statements. ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairmen t. This ASU simplifies the accounting for goodwill impairment for all entities by requiring impairment charges to be based on the first step in today’s two-step impairment test. Under the new guidance, if a reporting unit’s carrying amount exceeds its fair value, an entity will record an impairment based on that difference. The impairment will be limited to the amount of goodwill allocated to that reporting unit. The standard eliminates the requirement to calculate a goodwill impairment using Step 2, which requires an entity to calculate any impairment by comparing the implied fair value of goodwill with its carrying amount. For public business entities, this ASU is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods. The adoption of ASU 2017-04 is not expected to have a material impact on the amounts or disclosures in the consolidated financial statements. ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. ASU 2016-13 sets forth the CECL model requiring the Company to measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. ASU 2016-13 requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses. In addition, the update amends the accounting for credit losses on AFS securities. As an SEC registrant with smaller reporting company filing status, CECL is effective for the Company January 1, 2023. The Company continues to evaluate the impact of this ASU on the consolidated financial statements and disclosures. In that regard, the Company has formed a cross-functional working group and is currently working through an implementation plan. The implementation plan includes an assessment of data, model development and documentation, documentation of processes, and implementation of a third-party vendor solution to assist in the adoption of ASU 2016-13 . Reclassification Certain amounts in the 2018 consolidated financial statements have been reclassified to conform to the 2019 presentation. These changes in presentation did not have a material impact on the Company's financial condition or results of operations.

Securities

Securities	12 Months Ended
	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Securities	Securities Securities held for indefinite periods of time are classified as AFS and carried at estimated fair value. The Company did not have any HTM securities for the years ended December 31, 2019 and 2018. Investment activity for the twelve months ended December 31, 2019, included $145.6 million of securities purchased, partially offset by $58.9 million in sales, and $67.1 million in maturities, payments, and calls. The investment portfolio had an increase of $9.5 million in market value for the year ended December 31, 2019, compared to December 31, 2018. The amortized cost and estimated fair values of securities AFS are summarized in the following tables: December 31, 2019 (in thousands) Amortized Gross Gross Fair Securities AFS: Mortgage-backed securities $ 236,572 $ 299 $ (1,200 ) $ 235,671 Municipal bonds 91,929 1,108 (279 ) 92,758 U.S. agency securities 7,102 46 (4 ) 7,144 Total Securities AFS $ 335,603 $ 1,453 $ (1,483 ) $ 335,573 December 31, 2018 (in thousands) Amortized Gross Gross Fair Securities AFS: Mortgage-backed securities $ 221,799 $ 11 $ (7,122 ) $ 214,688 Municipal bonds 70,416 94 (2,235 ) 68,275 U.S. agency securities 23,170 6 (261 ) 22,915 U.S. Treasury securities 1,994 5 — 1,999 Total Securities AFS $ 317,379 $ 116 $ (9,618 ) $ 307,877 The amortized costs and estimated market values of debt securities as of December 31, 2019 , by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because issuers have the right to call or repay obligations with or without call or prepayment penalties. (in thousands) Amortized Cost Fair Value Within one year $ 2,182 $ 2,187 After one year but within five years 30,064 29,948 After five years but within ten years 69,467 69,903 After ten years 233,890 233,535 Total $ 335,603 $ 335,573 Information pertaining to securities with gross unrealized losses as of December 31, 2019 and December 31, 2018 , aggregated by investment category and length of time that individual securities have been in a continuous loss position is described as follows: Less than twelve months Twelve months or more (in thousands) Gross Unrealized Losses Fair Value Gross Fair December 31, 2019 Securities AFS: Mortgage-backed securities $ (474 ) $ 109,416 $ (726 ) $ 70,425 Municipal bonds (172 ) 18,735 (107 ) 9,323 U.S. agency securities (4 ) 1,020 — — Total Securities AFS $ (650 ) $ 129,171 $ (833 ) $ 79,748 December 31, 2018 Securities AFS: Mortgage-backed securities $ (75 ) $ 8,845 $ (7,047 ) $ 200,532 Municipal bonds (48 ) 3,389 (2,187 ) 52,879 U.S. agency securities (41 ) 3,801 (220 ) 14,123 Total Securities AFS $ (164 ) $ 16,035 $ (9,454 ) $ 267,534 As of December 31, 2019 , the Company held 84 securities that were in continuous loss positions 12 months or longer and 92 securities that were in continuous loss positions less than 12 months. The aggregate unrealized losses of these securities as of December 31, 2019 , was 0.44% of the amortized cost basis of the total AFS securities portfolio. Management and the Asset-Liability Committee continually monitor the securities portfolio and are able to effectively measure and monitor the unrealized loss positions on these securities. Management does not intend to sell these securities prior to recovery, and it is more likely than not that the Company will have the ability to hold them, primarily due to adequate liquidity, until each security has recovered its cost basis. The unrealized losses of these securities have been determined by management to be a function of the movement of interest rates since the time of purchase. Based on a review of available information, including recent changes in interest rates and credit rating information, management believes the declines in fair value of these securities are temporary. The Company does not consider these securities to have OTTI. Management evaluates securities for OTTI on at least a quarterly basis and more frequently if economic or market concerns merit such evaluation. Consideration is given to (1) the length of time and the extent to which the fair value has been less than cost; (2) the financial condition and near-term prospects of the issuer; and (3) whether the Company intends to, and it is more likely than not that it will be able to, retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value. Additionally, the Company annually performs a detailed credit review of the municipal securities owned to identify any potential credit concerns. There were no OTTI losses on securities recognized during the years ended December 31, 2019 and December 31, 2018 . The proceeds from sales of securities AFS and gross gain (loss) for the years ended December 31, 2019 and 2018, are shown below: Years Ended December 31, (in thousands) 2019 2018 Proceeds (1) $ 58,859 $ 5,282 Gross gain 309 57 Gross loss (291 ) (25 ) (1) The proceeds include the gross gains and losses. Pledged Securities Securities with carrying values of approximately $89.8 million and $93.5 million were pledged to secure public deposits, as of December 31, 2019 and December 31, 2018 , respectively.

Loans and Asset Quality

Loans and Asset Quality	12 Months Ended
	Dec. 31, 2019
Receivables [Abstract]
Loans and Asset Quality	Loans and Asset Quality Loans Total loans HFI by category and loans HFS are summarized below: December 31, (in thousands) 2019 2018 Real estate: Commercial real estate $ 531,990 $ 454,689 One-to-four family residential 420,020 406,963 Construction and development 132,461 102,868 Commercial and industrial 267,940 275,881 Tax-exempt 56,494 60,104 Consumer 30,019 27,933 Total loans HFI $ 1,438,924 $ 1,328,438 Total loans HFS $ 5,089 $ 2,904 Related Party Transactions In the ordinary course of business, certain officers, directors, and principal shareholders, as well as their immediate family members and affiliates in which they have 10% or more beneficial ownership (“related parties”), maintain a variety of banking relationships with the Company. An analysis of loan activity to these related parties is as follows: Years ended December 31, (in thousands) 2019 2018 Balance - beginning of period $ 40,311 $ 41,463 New loans/changes in relationships 33,354 31,688 Repayments/changes in relationships (43,056 ) (32,840 ) Balance - end of period $ 30,609 $ 40,311 Concentrations of Credit Risk The majority of the Bank’s lending activity occurs within Louisiana, primarily in the Central, Southeast, and Northwest market areas. The Bank maintains a diversified loan portfolio with a focus on commercial real estate, one-to-four family residential real estate, and commercial and industrial loans. Substantially all of the Bank’s real estate loans are secured by properties located within Louisiana. Allowance for Loan Losses The following table summarizes the activity in the allowance for loan losses by category for the year ended December 31, 2019 : (in thousands) Beginning Balance Provision for Loan Losses Loans Charged-off Recoveries Ending Balance Real estate: Commercial real estate $ 3,081 $ 373 $ — $ — $ 3,454 One-to-four family residential 3,146 216 (44 ) 5 3,323 Construction and development 951 172 — 88 1,211 Commercial and industrial 4,604 850 (864 ) 585 5,175 Tax-exempt 372 (38 ) — — 334 Consumer 370 237 (311 ) 144 440 Total allowance for loan losses $ 12,524 $ 1,810 $ (1,219 ) $ 822 $ 13,937 The following table summarizes the activity in the allowance for loan losses by category for the year ended December 31, 2018 : (in thousands) Beginning Balance Provision for Loan Losses Loans Charged-off Recoveries Ending Balance Real estate: Commercial real estate $ 3,270 $ (189 ) $ (27 ) $ 27 $ 3,081 One-to-four family residential 3,099 (136 ) (4 ) 187 3,146 Construction and development 852 99 — — 951 Commercial and industrial 2,836 2,112 (353 ) 9 4,604 Tax-exempt 432 (60 ) — — 372 Consumer 406 164 (353 ) 153 370 Total allowance for loan losses $ 10,895 $ 1,990 $ (737 ) $ 376 $ 12,524 The balance in the allowance for loan losses and the related recorded investment in loans by category as of December 31, 2019 , are as follows: (in thousands) Individually Evaluated for Impairment Collectively Acquired with Deteriorated Credit Quality Total Allowance for loan losses: Real estate: Commercial real estate $ 260 $ 3,194 $ — $ 3,454 One-to-four family residential 31 3,292 — 3,323 Construction and development 10 1,201 — 1,211 Commercial and industrial 2,916 2,259 — 5,175 Tax-exempt — 334 — 334 Consumer 71 369 — 440 Total allowance for loan losses $ 3,288 $ 10,649 $ — $ 13,937 Loans: Real estate: Commercial real estate $ 2,639 $ 529,351 $ — $ 531,990 One-to-four family residential 1,193 418,827 — 420,020 Construction and development 38 132,423 — 132,461 Commercial and industrial 8,797 259,143 — 267,940 Tax-exempt — 56,494 — 56,494 Consumer 75 29,944 — 30,019 Total loans HFI $ 12,742 $ 1,426,182 $ — $ 1,438,924 The balance in the allowance for loan losses and the related recorded investment in loans by category as of December 31, 2018 , are as follows: (in thousands) Individually Evaluated for Impairment Collectively Acquired with Deteriorated Credit Quality Total Allowance for loan losses: Real estate: Commercial real estate $ 206 $ 2,875 $ — $ 3,081 One-to-four family residential 20 3,126 — 3,146 Construction and development 12 939 — 951 Commercial and industrial 2,304 2,300 — 4,604 Tax-exempt — 372 — 372 Consumer 75 295 — 370 Total allowance for loan losses $ 2,617 $ 9,907 $ — $ 12,524 Loans: Real estate: Commercial real estate $ 3,829 $ 450,860 $ — $ 454,689 One-to-four family residential 2,348 404,615 — 406,963 Construction and development 55 102,813 — 102,868 Commercial and industrial 15,516 260,365 — 275,881 Tax-exempt — 60,104 — 60,104 Consumer 104 27,829 — 27,933 Total loans HFI $ 21,852 $ 1,306,586 $ — $ 1,328,438 Past Due and Nonaccrual Loans A summary of current, past due, and nonaccrual loans as of December 31, 2019 , is as follows: Accruing (in thousands) Current 30-89 Days 90 Days or More Past Due Nonaccrual Total Loans Real estate: Commercial real estate $ 530,712 $ — $ — $ 1,278 $ 531,990 One-to-four family residential 419,229 184 — 607 420,020 Construction and development 132,423 — — 38 132,461 Commercial and industrial 264,427 143 — 3,370 267,940 Tax-exempt 56,494 — — — 56,494 Consumer 29,973 20 — 26 30,019 Total loans HFI $ 1,433,258 $ 347 $ — $ 5,319 $ 1,438,924 A summary of current, past due, and nonaccrual loans as of December 31, 2018 , is as follows: Accruing (in thousands) Current 30-89 Days 90 Days or More Past Due Nonaccrual Total Loans Real estate: Commercial real estate $ 452,477 $ — $ 850 $ 1,362 $ 454,689 One-to-four family residential 405,961 512 66 424 406,963 Construction and development 102,776 36 1 55 102,868 Commercial and industrial 272,174 32 — 3,675 275,881 Tax-exempt 60,104 — — — 60,104 Consumer 27,851 16 22 44 27,933 Total loans HFI $ 1,321,343 $ 596 $ 939 $ 5,560 $ 1,328,438 Impaired Loans Impaired loans include TDRs and performing and nonperforming loans. Information pertaining to impaired loans as of December 31, 2019 , is as follows: (in thousands) Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Real estate: Commercial real estate $ 1,560 $ 1,537 $ — $ 2,647 $ 74 One-to-four family residential 1,040 984 — 1,194 44 Construction and development — — — 76 — Commercial and industrial 1,805 1,474 — 3,685 3 Tax-exempt — — — — — Consumer 2 2 — 9 — Total with no related allowance 4,407 3,997 — 7,611 121 With allowance recorded: Real estate: Commercial real estate 1,263 1,102 260 1,076 — One-to-four family residential 216 209 31 339 — Construction and development 51 38 10 89 — Commercial and industrial 8,544 7,323 2,916 7,746 299 Tax-exempt — — — — — Consumer 76 73 71 76 4 Total with related allowance 10,150 8,745 3,288 9,326 303 Total impaired loans $ 14,557 $ 12,742 $ 3,288 $ 16,937 $ 424 Information pertaining to impaired loans as of December 31, 2018 , is as follows: (in thousands) Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Real estate: Commercial real estate $ 2,376 $ 2,255 $ — $ 2,470 $ 72 One-to-four family residential 1,912 1,855 — 2,026 149 Construction and development 18 16 — 738 — Commercial and industrial 11,003 9,707 — 8,909 345 Tax-exempt — — — — — Consumer 12 12 — 10 — Total with no related allowance 15,321 13,845 — 14,153 566 With allowance recorded: Real estate: Commercial real estate 1,584 1,574 206 1,715 132 One-to-four family residential 507 493 20 497 23 Construction and development 52 39 12 41 — Commercial and industrial 5,809 5,809 2,304 5,813 210 Tax-exempt — — — — — Consumer 95 92 75 35 1 Total with related allowance 8,047 8,007 2,617 8,101 366 Total impaired loans $ 23,368 $ 21,852 $ 2,617 $ 22,254 $ 932 Troubled Debt Restructurings The restructuring of a loan is considered a TDR if the borrower is experiencing financial difficulties and the bank has granted a concession. Concessions grant terms to the borrower that would not be offered for new debt with similar risk characteristics. Concessions typically include interest rate reductions or below market interest rates, revising amortization schedules to defer principal and interest payments, and other changes necessary to provide payment relief to the borrower and minimize the risk of loss. As of December 31, 2019 and 2018 , the recorded investments in TDRs were $4.9 million and $5.1 million , respectively. There were no unfunded commitments to extend credit related to these loans. A summary of current, past due, and nonaccrual TDR loans as of December 31, 2019 , is as follows: (dollars in thousands) Current 30-89 Days 90 Days or More Past Due Nonaccrual Total TDRs Real estate: Commercial real estate $ 1,361 $ — $ — $ 1,278 $ 2,639 One-to-four family residential 252 — — — 252 Construction and development — — — 38 38 Commercial and industrial 36 — — 1,869 1,905 Tax-exempt — — — — — Consumer 46 — — — 46 Total $ 1,695 $ — $ — $ 3,185 $ 4,880 Number of TDR loans 12 — — 6 18 A summary of current, past due, and nonaccrual TDR loans as of December 31, 2018 , is as follows: (dollars in thousands) Current 30-89 Days 90 Days or More Past Due Nonaccrual Total TDRs Real estate: Commercial real estate $ 1,267 $ — $ — $ 1,362 $ 2,629 One-to-four family residential 208 — — — 208 Construction and development — — — 39 39 Commercial and industrial 41 — — 2,139 2,180 Tax-exempt — — — — — Consumer 56 — — — 56 Total $ 1,572 $ — $ — $ 3,540 $ 5,112 Number of TDR loans 10 — — 6 16 A summary of loans modified as TDRs that occurred during the years ended December 31, 2019 and 2018 , is as follows: 2019 2018 Recorded Investment Recorded Investment (dollars in thousands) Loan Count Pre Modification Post Modification Loan Count Pre Modification Post Modification Real estate: Commercial real estate 1 $ 166 $ 166 1 $ 435 $ 479 One-to-four family residential 1 60 62 1 40 40 Construction and development — — — — — — Commercial and industrial 1 4 4 — — — Tax-exempt — — — — — — Consumer — — — 1 58 58 Total 3 $ 230 $ 232 3 $ 533 $ 577 The TDRs described above increased the allowance for loan losses by $3,000 and $56,000 during the years ended December 31, 2019 and 2018 , respectively. Additionally, there was a partial charge-off totaling $250,000 for both 2019 and 2018. There were no TDRs that subsequently defaulted in 2019 or 2018 . Credit Quality Indicators Loans are categorized based on the degree of risk inherent in the credit and the ability of the borrower to service the debt. A description of the general characteristics of the Bank’s risk rating grades follows: Pass - These ratings are assigned to loans with a risk level ranging from very low to acceptable based on the borrower’s financial condition, financial trends, management strength, and collateral quality. Special Mention - This category includes loans with potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan. Substandard - Loans in this category have well defined weaknesses which jeopardize normal repayment of principal and interest. Doubtful - Loans in this category have well defined weaknesses that make full collection improbable. Loss - Loans classified in this category are considered uncollectible and charged-off to the allowance for loan losses. The following table summarizes loans by risk rating as of December 31, 2019 : (in thousands) Pass Special Mention Substandard Doubtful Loss Total Real estate: Commercial real estate $ 515,926 $ 14,118 $ 1,946 $ — $ — $ 531,990 One-to-four family residential 416,884 2,021 1,115 — — 420,020 Construction and development 131,185 565 711 — — 132,461 Commercial and industrial 247,382 11,473 9,085 — — 267,940 Tax-exempt 56,494 — — — — 56,494 Consumer 29,876 5 138 — — 30,019 Total loans HFI $ 1,397,747 $ 28,182 $ 12,995 $ — $ — $ 1,438,924 The following table summarizes loans by risk rating as of December 31, 2018 : (in thousands) Pass Special Mention Substandard Doubtful Loss Total Real estate: Commercial real estate $ 439,580 $ 11,883 $ 3,226 $ — $ — $ 454,689 One-to-four family residential 402,864 1,992 2,107 — — 406,963 Construction and development 101,754 375 739 — — 102,868 Commercial and industrial 251,987 8,311 15,583 — — 275,881 Tax-exempt 60,104 — — — — 60,104 Consumer 27,729 44 160 — — 27,933 Total loans HFI $ 1,284,018 $ 22,605 $ 21,815 $ — $ — $ 1,328,438 Commitments to Extend Credit Commitments to extend credit are agreements to lend to a customer if all conditions of the commitment have been met. Commitments generally have fixed expiration dates or other termination clauses and may require the payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if it is deemed necessary by the Company upon extension of credit, is based on management’s evaluation of the customer’s ability to repay. As of December 31, 2019 , unfunded loan commitments totaled approximately $257.0 million . As of December 31, 2018 , unfunded loan commitments totaled approximately $231.5 million . Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing, and similar transactions. As of December 31, 2019 , commitments under standby letters of credit totaled approximately $11.1 million . As of December 31, 2018 , commitments under standby letters of credit totaled approximately $11.6 million . The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.

Premises and Equipment, Net

Premises and Equipment, Net	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Premises and Equipment, Net	Premises and Equipment, Net Components of premises and equipment were as follows: December 31, (in thousands) 2019 2018 Land $ 14,495 $ 12,087 Buildings 28,478 23,809 Leasehold improvements 2,720 2,709 Furniture and equipment 12,002 11,285 Vehicles 341 339 Computer equipment 3,185 2,919 Projects in process 1,609 6,152 Total premises and equipment 62,830 59,300 Less: Accumulated depreciation (21,086 ) (19,610 ) Premises and equipment, net $ 41,744 $ 39,690 Depreciation expense amounted to approximately $1.7 million for both years ended December 31, 2019 and 2018 .

Deposits

Deposits	12 Months Ended
	Dec. 31, 2019
Banking and Thrift [Abstract]
Deposits	Deposits Deposits are summarized below: December 31, (in thousands) 2019 2018 Noninterest-bearing demand deposits $ 584,915 $ 547,880 Interest-bearing deposits: NOW accounts 331,374 304,545 Money market deposits 367,689 358,575 Savings accounts 103,984 104,355 Time deposits < $100,000 110,636 119,637 Time deposits $100,000 to $250,000 131,957 128,637 Time deposits > $250,000 90,565 81,954 Total interest-bearing deposits 1,136,205 1,097,703 Total deposits $ 1,721,120 $ 1,645,583 As of December 31, 2019 , the scheduled maturities of all outstanding certificates of deposit were as follows: Years ending December 31, Amount (in thousands) 2020 $ 205,144 2021 62,292 2022 25,032 2023 14,633 2024 11,138 Thereafter 14,919 $ 333,158 As of December 31, 2019 and December 31, 2018 , deposits from directors, executive officers, their immediate family members, and related companies totaled approximately $30.7 million and $26.1 million , respectively.

Other Borrowed Funds

Other Borrowed Funds	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Other Borrowed Funds	Other Borrowed Funds The Company has established various lines of credit with the FHLB and other correspondent banks to provide additional sources of operating funds. As of December 31, 2019, the Company can borrow up to approximately $639.1 million under these combined agreements. As of December 31, 2019 and 2018 , the Company had no borrowings under these agreements.

Junior Subordinated Debentures

Junior Subordinated Debentures	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Junior Subordinated Debentures	Junior Subordinated Debentures The Company previously issued $6.2 million of floating rate junior subordinated debentures and has been the sponsor of three wholly owned business trusts: Trust II, Trust III and FBT CT I. On April 1, 2013, the Company assumed $5.2 million of floating rate junior subordinated debentures and FBT CT I in conjunction with its acquisition of Fidelity Bancorp, Inc. Prior to redemption, these trusts issued a total of $11.0 million of floating rate capital securities (trust preferred securities) to investors and a total of $341,000 of common securities to the Company. On June 17, 2019, the Company redeemed all of its floating rate junior subordinated debentures held by Trust III at a redemption price of 100% of the outstanding principal amount of $3.1 million , plus accrued and unpaid interest thereon through the date of redemption. On June 30, 2019, the Company redeemed all of its floating rate junior subordinated debentures held by Trust II at a redemption price of 100% of the outstanding principal amount of $3.1 million , plus accrued and unpaid interest thereon through the date of redemption. On August 8, 2019, the Company redeemed all of its floating rate junior subordinated debentures held by FBT CT I at a redemption price of 100% of the outstanding principal amount of $5.2 million , plus accrued and unpaid interest thereon through the date of redemption. As of December 31, 2019 and December 31, 2018, floating rate junior subordinated debentures were as follows: (dollars in thousands) Trust II Trust III FBT CT I Total December 31, 2019 Trust preferred securities $ — $ — $ — $ — Common securities $ — $ — $ — $ — Total junior subordinated debentures $ — $ — $ — $ — December 31, 2018 Trust preferred securities $ 3,000 $ 3,000 $ 5,000 $ 11,000 Common securities 93 93 155 341 Total junior subordinated debentures $ 3,093 $ 3,093 $ 5,155 $ 11,341 Issue date May 28, 2003 April 20, 2005 September 4, 2003 Call date May 28, 2008 June 15, 2010 August 8, 2008 Maturity date May 28, 2033 June 15, 2035 August 8, 2033 Redemption date June 30, 2019 June 17, 2019 August 8, 2019 Interest rate as of the redemption date 5.84 % 4.58 % 5.58 % Interest rate as of December 31, 2018 5.65 % 4.30 % 5.34 % The trust preferred securities represented an interest in the Company’s junior subordinated debentures, which were purchased by the business trust and had substantially the same payment terms as the trust preferred securities. The junior subordinated debentures were the only assets of the trusts and interest payments from the debentures, payable quarterly, financed the distributions paid on the trust preferred securities. The junior subordinated debentures were redeemable prior to the maturity date, at the option of the Company, in whole or in part, subject to the terms of the trust indentures.

Leases

Leases	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases	Leases The Company determines if an arrangement is a lease at inception of the contract and assesses the appropriate classification as operating or financing. Operating leases with terms greater than one year are included in right-of-use assets and lease liabilities on the Company's consolidated balance sheets. Agreements with both lease and non-lease components are accounted for separately, with only the lease component capitalized. Operating right-of-use assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the term using the interest rate implicit in the contract, when available, or the Company's incremental collateralized borrowing rate with similar terms. The Company maintains six operating leases on land and buildings for banking center facilities under long-term leases. These operating leases contain renewal options for periods ranging from three to five years that expire at various dates through October 31, 2031, with no residual value guarantees. Future obligations relating to the exercise of renewal options is included in the measurement if, based on the judgment of management, the renewal option is reasonably certain to be exercised. Factors in determining whether an option is reasonably certain of exercise include, but are not limited to, the value of leasehold improvements, the value of the renewal rate compared to market rates, and the presence of factors that would cause a significant economic penalty to the Company if the option is not exercised. Management reasonably plans to exercise all options, and as such, all renewal options are included in the measurement of the right-of-use assets and operating lease liabilities. As of December 31, 2019 , the Company had right-of-use assets of $4.6 million and lease liabilities of $4.6 million . ASC 842, Leases provides several practical expedients available for use in transition. The Company elected to use the standard’s package of practical expedients, which allows the use of previous conclusions about lease identification, lease classification, and the accounting treatment for initial direct costs. The Company also elected the short-term lease recognition exemption for all leases with lease terms of one year or less. Therefore, the Company will not recognize right-of-use assets or lease liabilities on the consolidated balance sheets for such leases. Operating lease expenses for operating leases accounted for under ASC 842, Leases for the years ended December 31, 2019 and 2018, were $549,000 and $592,000 , respectively and are included as a component of occupancy and equipment expenses within the accompanying consolidated statements of income. Accounting for leases in accordance with ASC 842, Leases has not had a material impact on the consolidated statements of income. The table below summarizes other information related to the Company's operating leases: As of and for the Year Ended (dollars in thousands) December 31, 2019 Cash paid for amounts included in measurement of lease liabilities for operating leases $ 500 Weighted average remaining operating lease term 10.3 years Weighted average operating lease discount rate 3.4 % Future obligations over the primary and renewal option terms of the Company’s long-term operating leases as of December 31, 2019 , were as follows: Years Ending December 31, Amount (in thousands) 2020 $ 520 2021 529 2022 537 2023 539 2024 539 Thereafter 2,815 Total lease payments 5,479 Less: Imputed interest (876 ) Present value of lease liabilities $ 4,603 The Company's obligations under financing leases are not material and have not been included in assets and liabilities in the financial statements.

Income Tax Expense

Income Tax Expense	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Tax Expense	Income Tax Expense The components of income tax expense for the years ended December 31, 2019 and 2018 , were as follows: Years Ended December 31, (in thousands) 2019 2018 Current tax expense $ 6,196 $ 5,752 Deferred tax expense (benefit) (556 ) (452 ) Income tax expense $ 5,640 $ 5,300 The Tax Reform Act was effective January 1, 2018, and significantly revised the U.S. corporate income tax law by, among other things, lowering the maximum U.S. corporate income tax rate to 21.0% . The source and tax effect of items reconciling income tax expense to the amount computed by applying the federal income tax rates in effect to income before income tax expense as of December 31, 2019 and 2018 , are as follows: December 31, 2019 2018 (dollars in thousands) Amount Percent Amount Percent Income before income tax expense $ 30,464 100.0 % $ 28,356 100.0 % U.S. federal income tax expense 6,397 21.0 % 5,955 21.0 % Nontaxable income (803 ) (2.7 )% (765 ) (2.7 )% Nondeductible expenses 22 0.1 % 34 0.1 % Other 24 0.1 % 76 0.3 % Income tax expense $ 5,640 18.5 % $ 5,300 18.7 % The Company records deferred income taxes on the tax effect of changes in temporary differences. Deferred tax assets (liabilities) are subject to a valuation allowance unless their realization is more likely than not. The deferred tax assets (liabilities) were comprised of the following as of December 31, 2019 and 2018 : December 31, (in thousands) 2019 2018 Depreciation $ (1,467 ) $ (1,481 ) FHLB stock dividends (16 ) (13 ) Other — (18 ) Gross deferred tax liability (1,483 ) (1,512 ) Allowance for loan losses 2,920 2,572 Allowance for operational losses 36 47 Health insurance self fund 208 212 Deferred compensation 762 689 Unrealized loss on securities 6 1,996 Equity security valuation 14 45 Advance payment 187 224 Accrued bonus 139 — Other 152 126 Gross deferred tax asset 4,424 5,911 Net deferred tax asset (liability) $ 2,941 $ 4,399

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2019
Retirement Benefits [Abstract]
Employee Benefits	Employee Benefits The Company adopted a contributory retirement plan for employees of Red River Bank effective March 1, 1999, and amended as of December 22, 2015. The plan covers all employees who meet the length of service and the number of hours worked requirements and elect to participate. Discretionary employer contributions during the years ended December 31, 2019 and 2018 , totaled approximately $584,000 and $527,000 , respectively. The Bank has entered into nonqualified deferred compensation agreements with certain employees. These agreements are funded by life insurance policies. The Bank is the owner and beneficiary of all policy death benefits. The BOLI policies are recorded as a separate line item at their cash surrender value in the accompanying consolidated balance sheets. The agreements provide for transfer of a portion of the proceeds to certain employees. The related liability recorded was $2.0 million and $1.8 million as of December 31, 2019 and 2018 , respectively.

Stock-Based Compensation Plans

Stock-Based Compensation Plans	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation Plans	Stock-Based Compensation Plans Equity Incentive Plans On April 17, 2008, the Company adopted its 2008 Equity Incentive Plan that provides for the granting of stock-based arrangements for key employees and non-employee members of the Company’s Board of Directors. The Compensation Committee of the Company’s Board of Directors administers the plan, makes determinations with respect to participation, and authorizes stock-based awards under the plan. To date, the Committee has awarded stock options and restricted stock awards as detailed further below. The 2008 plan expired on December 31, 2018, and no new awards were granted under this plan in 2019. However, all outstanding and unexercised awards previously granted under the plan will continue to be governed by the terms and conditions thereof. On October 25, 2018, the Company adopted its 2018 Equity Incentive Plan, which was approved by the Company’s shareholders in April of 2019. The 2018 plan was adopted in anticipation of the expiration of the 2008 plan and provides for the granting of stock-based awards to key employees, directors, and consultants. Similar to the 2008 plan, the Compensation Committee of the Company’s Board of Directors administers the 2018 plan, makes determinations with respect to participation, and authorizes stock-based awards under the plan. As of December 31, 2018, no awards had been granted under the 2018 plan, and the maximum number of shares of the Company’s common stock available for issuance under the 2018 plan was 200,000 shares. During 2019, 5,975 shares were granted under the 2018 plan. As of December 31, 2019, the number of shares available for issuance was 194,025 . All disclosures for stock options and restricted stock shown below relate to outstanding awards under the 2008 and 2018 plans. Disclosures for stock options and restricted stock awards are shown separately due to their dissimilar characteristics. Stock Options The options granted under the 2008 plan are to purchase common stock at an exercise price not less than the fair market value of the common stock at the date of the grant. The granted options vested and became exercisable in twenty percent increments on the first through the fifth anniversaries of the date of the grant and shall expire and may not be exercised later than ten years following the date of the grant. The options expire on various dates through 2022. No options have been granted under the 2018 plan. The fair value of options granted was estimated as of the date granted using the Black Scholes model. No options were granted in 2018 or 2019 . The Company funds the stock options from authorized, but unissued, shares. The status of the Company’s stock option plan is presented below: Stock Options Number of Shares Exercise Price Range Weighted Average Price Outstanding - December 31, 2017 33,500 $12.32 - $17.33 $ 14.56 Exercised (1) (5,500 ) $12.32 - $14.31 $ 13.04 Outstanding - December 31, 2018 28,000 $12.32 - $17.33 $ 14.85 Exercised (2) (7,500 ) $12.32 $ 12.32 Outstanding - December 31, 2019 20,500 $14.31 - $17.33 $ 15.78 (1) A total of 490 shares of the Company’s common stock were surrendered in lieu of payment of a portion of the cash exercise price for options exercised during 2018 , resulting in the net issuance upon exercise of an aggregate of 5,010 shares of the Company’s common stock. (2) A total of 300 shares of the Company’s common stock were surrendered in lieu of payment of a portion of the cash exercise price for options exercised during 2019 , resulting in the net issuance upon exercise of an aggregate of 7,200 shares of the Company’s common stock. As of December 31, 2019 , 20,500 of the outstanding options were fully vested and exercisable with an intrinsic value of approximately $826,000 . The weighted average remaining term for vested options was 1.32 years . No shares vested during the year ended December 31, 2019 . As of December 31, 2018 , 28,000 of the outstanding options were fully vested and exercisable with an intrinsic value of approximately $725,000 . The weighted average remaining term for vested options was 1.75 years . No shares vested during the year ended December 31, 2018 . Restricted Stock Awards The restricted stock awards issued under the 2008 and 2018 plans provide common stock to recipients at the grant date. The restrictions vest in twenty percent increments on the first through fifth anniversaries of the grant date. During 2019 , the Committee granted 5,975 restricted stock awards with a weighted average fair value of $48.15 . For the year ended December 31, 2019 , the compensation expense for the vested restricted stock was $227,000 . As of December 31, 2019 , there was approximately $641,000 of total unrecognized compensation cost related to restricted stock awards. That cost is expected to be recognized over a weighted average period of 4.5 years . During 2018 , the Committee granted 6,750 restricted stock awards with a weighted average fair value of $37.49 . For the year ended December 31, 2018 , the compensation expense for the vested restricted stock was $193,000 . As of December 31, 2018 , there was approximately $568,000 of total unrecognized compensation cost related to restricted stock awards. That cost is expected to be recognized over a weighted average period of 4.5 years . The Company funds the restricted stock from authorized, but unissued, shares. The status of the Company's nonvested restricted stock is presented below: Nonvested Restricted Stock Number of Shares Weighted Average Grant Date Fair Value Nonvested - December 31, 2017 21,650 $ 28.41 Granted 6,750 $ 37.49 Vested (7,210) $ 26.06 Nonvested - December 31, 2018 21,190 $ 32.10 Granted 5,975 $ 48.15 Vested (6,560) $ 30.26 Nonvested - December 31, 2019 20,605 $ 37.34 Director Compensation Program The Company has a Director Compensation Program. This program allows directors the option of receiving a portion of their payment for director fees, for attendance at board meetings, in Company stock. Under the program, board fees are earned and expensed in one year and the related stock is issued the following year. The director compensation program stock earned and the issuance of shares as board compensation for the years ended December 31, 2019 and 2018 , are as follows: Years Ended December 31, (dollars in thousands) 2019 2018 Share-based board compensation earned $ 87 $ 96 Issuance of shares of common stock as board compensation: Number of shares issued 2,368 2,452 Equity impact of shares issued $ 96 $ 92

Self-Insurance

Self-Insurance	12 Months Ended
	Dec. 31, 2019
Insurance [Abstract]
Self-Insurance	Self-Insurance The Company is self-insured for group health insurance. The Company’s liability is limited to the aggregate policy deductible of $125,000 per individual with a maximum of approximately $3.5 million for the group. The Company has reflected its estimated liability for known and incurred but not reported claims in the accompanying financial statements.

Off-Balance Sheet Contractual O

Off-Balance Sheet Contractual Obligations	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Off-Balance Sheet Contractual Obligations	Off-Balance Sheet Contractual Obligations The Company is a party to financial instruments with off-balance sheet risk in the normal course of business. The contract or notional amounts of these instruments reflect the extent of the Company’s involvement in particular classes of financial instruments. The Company’s exposure is represented by the contractual amount of these commitments. Purchase Commitments The Company has committed to an agreement to buy real estate for administrative use for approximately $2.5 million as of December 31, 2019 . Investment Commitment In 2014, the Company committed to an investment into an SBIC limited partnership. As of December 31, 2019 , there is a $226,000 outstanding commitment to this partnership.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value	Fair Value The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair Value Disclosure AFS securities and loans HFS are recorded at fair value on a recurring basis. Additionally, the Company may be required to record at fair value other assets on a nonrecurring basis, such as impaired loans, foreclosed assets, and other certain assets. The nonrecurring fair value adjustments typically involve application of lower of cost or market accounting or write-downs of individual assets. ASC 820, Fair Value Measurements and Disclosures indicates that assets and liabilities are recorded at fair value according to a fair value hierarchy comprised of three levels: Level 1 pricing represents quotes on the exact financial instrument that is traded in active markets. Quoted prices on actively traded equities, for example, are in this category. Level 2 pricing is derived from observable data including market spreads, current and projected rates, prepayment data, and credit quality. The valuation may be based on quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 pricing is derived without the use of observable data. In such case, mark-to-model strategies are typically employed. Often, these types of instruments have no active market, possess unique characteristics, and are thinly traded. The Company used the following methods and significant assumptions to estimate fair value: Investment Securities and other Stocks: The fair values for marketable securities are determined by quoted market prices, if available (Level 1). For securities where quoted prices are not available, fair values are calculated based on market prices of similar securities (Level 2). For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators (Level 3). Loans HFS: Residential mortgage loans originated and held for sale are carried at the lower of cost or estimated fair value on an individual basis. The fair values of mortgage loans HFS are based on commitments on hand from investors within the secondary market for loans with similar characteristics. As such, the fair value adjustments for mortgage loans HFS are recurring Level 2. Loans HFI: The Company does not record loans HFI at fair value on a recurring basis. However, from time to time, a loan may be considered impaired and an allowance for loan losses may be established. Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Once a loan is identified as individually impaired, management measures impairment using estimated fair value methodologies. The fair value of impaired loans is estimated using one of several methods, including collateral value, market value of similar debt, enterprise value, liquidation value and discounted cash flows. When the fair value of the collateral is based on an observable market price or a current appraised value, the Company considers the impaired loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, the Company considers the impaired loan as nonrecurring Level 3. Foreclosed Assets: Foreclosed assets, consisting of properties obtained through foreclosure or in satisfaction of loans, are reported at fair value, determined on the basis of current appraisals, comparable sales, and other estimates of value obtained principally from independent sources, adjusted for estimated selling costs (Level 2). However, foreclosed assets are considered Level 3 in the fair value hierarchy because management has qualitatively applied a discount due to the size, supply of inventory, and the incremental discounts applied to the appraisals. Management also considers other factors, including changes in absorption rates, length of time the property has been on the market, and anticipated sales values, which have resulted in adjustments to the collateral value estimates indicated in certain appraisals. The table below presents the recorded amount of assets measured at fair value on a recurring basis: (in thousands) Fair Value Level 1 Level 2 Level 3 December 31, 2019 Loans HFS $ 5,089 $ — $ 5,089 $ — Securities AFS: Mortgage-backed securities 235,671 — 235,671 — U.S. agency securities 7,144 — 7,144 — Municipal bonds 92,758 — 92,758 — U.S. Treasury securities — — — — Equity securities 3,936 3,936 — — December 31, 2018 Loans HFS $ 2,904 $ — $ 2,904 $ — Securities AFS: Mortgage-backed securities 214,688 — 214,688 — U.S. agency securities 22,915 — 22,915 — Municipal bonds 68,275 — 68,275 — U.S. Treasury securities 1,999 — 1,999 — Equity securities 3,821 3,821 — — There were no transfers between Level 1, 2, or 3 during the years ended December 31, 2019 or 2018 . The following table presents the recorded amount of assets and liabilities measured at fair value on a nonrecurring basis: (in thousands) Fair Value Level 1 Level 2 Level 3 December 31, 2019 Impaired loans $ 9,454 $ — $ — $ 9,454 Foreclosed assets 1,128 — — 1,128 December 31, 2018 Impaired loans $ 19,235 $ — $ — $ 19,235 Foreclosed assets 646 — — 646 The Company had no liabilities measured at fair value on a nonrecurring basis. The unobservable inputs used for the Level 3 fair value measurements on a nonrecurring basis were as follows: Weighted Average Discount December 31, Valuation Technique Unobservable Input 2019 2018 Impaired loans Discounted appraisals Collateral discounts and costs to sell 25.80% 11.97% Foreclosed assets Discounted appraisals Collateral discounts and costs to sell 2.60% 6.21% The carrying amounts and estimated fair values of financial instruments, as of December 31, 2019 and 2018 , were as follows): (in thousands) Carrying Amount Fair Value Level 1 Level 2 Level 3 December 31, 2019 Financial assets: Cash and due from banks $ 25,937 $ 25,937 $ 25,937 $ — $ — Interest-bearing deposits in other banks 107,355 107,355 107,355 — — Securities AFS 335,573 335,573 — 335,573 — Equity securities 3,936 3,936 3,936 — — Nonmarketable equity securities 1,350 1,350 — 1,350 — Loans HFS 5,089 5,089 — 5,089 — Loans HFI, net of allowance 1,424,987 1,426,163 — — 1,426,163 Accrued interest receivable 5,251 5,251 — — 5,251 Financial liabilities: Deposits 1,721,120 1,721,286 — 1,721,286 — Accrued interest payable 2,222 2,222 — 2,222 — December 31, 2018 Financial assets: Cash and due from banks $ 34,070 $ 34,070 $ 34,070 $ — $ — Interest-bearing deposits in other banks 117,836 117,836 117,836 — — Securities AFS 307,877 307,877 — 307,877 — Equity securities 3,821 3,821 3,821 — — Nonmarketable equity securities 1,299 1,299 — 1,299 — Loans HFS 2,904 2,904 — 2,904 — Loans HFI, net of allowance 1,315,914 1,301,960 — — 1,301,960 Accrued interest receivable 5,013 5,013 — — 5,013 Financial liabilities: Deposits 1,645,583 1,641,136 — 1,641,136 — Junior subordinated debentures 11,341 11,341 — 11,341 — Accrued interest payable 1,757 1,757 — 1,757 —

Regulatory Capital Requirements

Regulatory Capital Requirements	12 Months Ended
	Dec. 31, 2019
Banking and Thrift [Abstract]
Regulatory Capital Requirements	Regulatory Capital Requirements Red River Bank The Bank is subject to various regulatory capital requirements administered by the FDIC. 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 Bank's and 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 their assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. The Bank is subject to Basel III capital guidelines. Basel III requires the Bank to maintain certain minimum ratios to meet capital adequacy requirements. In addition, a capital conservation buffer ("CCB") was established above the minimum regulatory capital requirements. The CCB for 2018 was 1.875%. Effective January 1, 2019, the final CCB was fully phased in at 2.500%. It is management’s belief that, as of December 31, 2019 , the Bank met all capital adequacy requirements under Basel III. Management expects that the capital ratios for the Bank under Basel III will continue to exceed capital adequacy requirements. The most recent notification from the FDIC (as of March 31, 2018) categorized the Bank as "well capitalized" under the regulatory framework for prompt corrective action. Capital amounts and ratios for Red River Bank as of December 31, 2019 and 2018 , are presented in the following table: Regulatory Requirements Actual Minimum Minimum Plus CCB (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio December 31, 2019 Total Risk-Based Capital $ 238,021 16.23 % $ 117,325 8.00 % $ 153,989 10.50 % Tier I Risk-Based Capital $ 224,084 15.28 % $ 87,994 6.00 % $ 124,658 8.50 % Common Equity Tier I Capital $ 224,084 15.28 % $ 65,995 4.50 % $ 102,660 7.00 % Tier I Leverage Capital $ 224,084 11.47 % $ 78,114 4.00 % $ 78,114 4.00 % December 31, 2018 Total Risk-Based Capital $ 211,240 15.66 % $ 107,912 8.00 % $ 133,204 9.88 % Tier I Risk-Based Capital $ 198,716 14.73 % $ 80,934 6.00 % $ 106,226 7.88 % Common Equity Tier I Capital $ 198,716 14.73 % $ 60,701 4.50 % $ 85,993 6.38 % Tier I Leverage Capital $ 198,716 10.76 % $ 73,874 4.00 % $ 73,874 4.00 % Red River Bancshares, Inc. As a general matter, bank holding companies are subject to capital adequacy requirements under applicable Federal Reserve regulations. However, bank holding companies which qualify as "small bank holding companies" under the Federal Reserve's Small Bank Holding Company Policy Statement are exempt from the Federal Reserve's capital adequacy guidelines at the holding company level. In May 2018, the Economic Growth Act was enacted, and it increased the asset threshold for "small bank holding companies" from $1.0 billion to $3.0 billion . Because the Company has less than $3.0 billion in assets, it is no longer subject to capital adequacy guidelines on a consolidated basis. Although the minimum regulatory capital requirements are no longer applicable to the Company, the Company calculates these ratios for its own planning and monitoring purposes. Capital amounts and ratios for Red River Bancshares, Inc. as of December 31, 2019 and 2018 , are presented in the following table: Actual (dollars in thousands) Amount Ratio December 31, 2019 Total Risk-Based Capital $ 264,313 18.02 % Tier I Risk-Based Capital $ 250,376 17.07 % Common Equity Tier I Capital $ 250,376 17.07 % Tier I Leverage Capital $ 250,376 12.82 % December 31, 2018 Total Risk-Based Capital $ 223,187 16.55 % Tier I Risk-Based Capital $ 210,663 15.62 % Common Equity Tier I Capital $ 199,663 14.80 % Tier I Leverage Capital $ 210,663 11.40 % Community Bank Leverage Ratio Framework As part of the directive under the Economic Growth Act, on September 17, 2019, the FDIC and other federal bank regulatory agencies approved the community bank leverage ratio ("CBLR") framework. This optional framework became effective January 1, 2020, and will be available as an alternative to the Basel III risk-based capital framework. The CBLR framework provides for a simple measure of capital adequacy for certain community banking organizations. Specifically, depository institutions and depository institution holding companies that have less than $10.0 billion in total consolidated assets and meet other qualifying criteria, including a Tier 1 leverage ratio of greater than 9.00%, are considered qualifying community banking organizations and are eligible to opt into the CBLR framework and replace the applicable Basel III risk-based capital requirements. As of December 31, 2019, the Company and the Bank qualify for the CBLR framework. Management does not intend to utilize the CBLR framework effective January 1, 2020.

Equity Events

Equity Events	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Equity Events	Equity Events IPO The Company's common stock began trading on May 3, 2019, on the Nasdaq Global Select Market under the symbol "RRBI." On May 7, 2019, the Company completed an IPO of its common stock at a public offering price of $45.00 per share. A total of 690,000 shares of the Company's common stock were sold in the IPO, of which the Company sold 663,320 shares (including 90,000 shares sold pursuant to the exercise of the underwriters' option to purchase additional shares) and certain shareholders sold 26,680 shares. The Company received net proceeds of $26.8 million in the offering. Cash Dividends As a Louisiana corporation, the Company is subject to certain restrictions on dividends under the Louisiana Business Corporation Act. Generally, a Louisiana corporation may pay dividends to its shareholders unless, after giving effect to the dividend, either: (1) the corporation would not be able to pay its debts as they come due in the usual course of business; or (2) the corporation’s total assets would be less than the sum of its total liabilities and the amount that would be needed, if the corporation were to be dissolved at the time of the payment of the dividend, to satisfy the preferential rights of shareholders whose preferential rights are superior to those receiving the dividend. The Company's status as a bank holding company also affects its ability to pay dividends in two additional ways. First, since the Company is a holding company with no material business activities of its own, its ability to pay dividends could become dependent upon the ability of Red River Bank to transfer funds to it in the form of dividends, loans, and advances. The Bank’s ability to pay dividends and make other distributions and payments to the Company is itself subject to various legal, regulatory, and other restrictions, and the present and future dividend policy of Red River Bank is subject to the discretion of its board of directors. Second, as a bank holding company, the Company's payment of dividends must comply with the laws, regulations, and policies of the Federal Reserve. The Federal Reserve has issued a supervisory letter on the payment of cash dividends by bank holding companies, which expresses the Federal Reserve’s view that a bank holding company should pay cash dividends only to the extent that: (1) the holding company’s net income for the past four quarters, net of any dividends previously paid during that period, is sufficient to fully fund the dividends; (2) the prospective rate of earnings retention is consistent with the bank holding company’s capital needs, asset quality, and overall financial condition; and (3) the bank holding company will continue to meet, and is not in danger of failing to meet, minimum regulatory capital adequacy ratios. The ability of Red River Bank to pay dividends on its common stock is restricted by Louisiana Banking Law, the FDIA, and by FDIC regulations. In general, the board of directors of a Louisiana state bank may, quarterly, semiannually, or annually, declare or pay dividends on its outstanding capital stock, provided that the bank has surplus at least equal to 50.0% of its capital stock and such surplus will not be reduced below 50.0% following payment of the dividend. Prior approval of the Louisiana Office of Financial Institutions is required for a Louisiana state bank to pay any dividend that would exceed its net profits earned during the current year combined with its retained net profits of the immediately preceding year. In general terms, the FDIA and FDIC regulations restrict the payment of dividends when a bank is undercapitalized, when a bank has failed to pay insurance assessments, or when there are safety and soundness concerns regarding a bank. The Bank and the Company have internal policies regarding dividends. Neither entity would ordinarily pay dividends if following the payment, the entity would not meet minimum capital adequacy plus the CCB requirements. The exception to this policy is in situations where the payment of a dividend from the Bank to the Company is necessary for the Company to be able to meet its obligations, and as long as, after such payment the Bank would still meet minimum capital adequacy requirements. Also, the Company's internal policy requires that the Company maintain a common stockholders' equity to total assets ratio of greater than 7.0% and that trust preferred securities are less than 25.0% of capital. Taking into consideration the Company's performance and capital levels, dividends were paid in both 2018 and 2019. In May 2018, the Company paid a cash dividend of $0.15 per share, adjusted for the 2018 2 -for-1 stock split, to shareholders of record as of March 31, 2018. In February 2019, the Company paid a cash dividend of $0.20 per share to shareholders of record as of January 31, 2019. Stock split In 2018, the Board of Directors authorized a 2 -for-1 stock split, which was accomplished by a stock dividend with a record date of October 1, 2018, whereby each holder of record of our common stock received one additional share of common stock for each share owned as of such date. This transaction is referred to in this report as the 2018 2 -for-1 stock split.

Earnings Per Common Share

Earnings Per Common Share	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share Basic EPS is computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period, after giving retroactive effect to stock splits. Diluted EPS includes accrued but unissued shares relating to the Directors’ Compensation Program, stock options, and restricted stock determined using the treasury stock method. The dilutive EPS calculation assumes all outstanding stock options to purchase common stock have been exercised at the beginning of the year and the pro forma proceeds from the exercised options and restricted stock are used to purchase common stock at the average fair market valuation price. The computations of basic and diluted earnings per common share for the Company were as follows: For the Years Ended December 31, (in thousands, except share amounts) 2019 2018 Numerator: Net income - basic $ 24,824 $ 23,056 Net income - diluted $ 24,824 $ 23,056 Denominator: Weighted average shares outstanding - basic 7,072,689 6,716,943 Plus: Effect of Directors Stock Compensation Program 1,554 2,368 Plus: Effect of stock options and restricted stock 41,271 36,791 Weighted average shares outstanding - diluted 7,115,514 6,756,102 Earnings per common share: Basic $ 3.51 $ 3.43 Diluted $ 3.49 $ 3.41

Quarterly Results of Operations

Quarterly Results of Operations (Unaudited)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Results of Operations (Unaudited)	Quarterly Results of Operations (Unaudited) The following tables present certain unaudited consolidated quarterly financial information regarding the Company's results of operations for each of the eight consecutive quarters in the fiscal years of 2019 and 2018. This information is derived from unaudited consolidated financial statements that include, in our opinion, all adjustments necessary for a fair presentation when read in conjunction with the Company's consolidated financial statements and notes thereto as of and for the years ended December 31, 2019 and 2018. 2019 (in thousands, except per share data) 4th Quarter 3rd Quarter 2nd Quarter 1st Quarter Interest and dividend income $ 18,784 $ 18,781 $ 18,256 $ 17,904 Interest expense 2,441 2,587 2,605 2,452 Net interest income 16,343 16,194 15,651 15,452 Provision for loan losses 378 378 529 526 Net interest income after provision for loan losses 15,965 15,816 15,122 14,926 Noninterest income 4,189 4,386 4,099 3,296 Operating expenses 11,888 11,885 12,404 11,158 Income tax expense 1,523 1,470 1,279 1,368 Net income $ 6,743 $ 6,847 $ 5,538 $ 5,696 Earnings per share Basic $ 0.92 $ 0.94 $ 0.79 $ 0.86 Diluted $ 0.92 $ 0.93 $ 0.78 $ 0.85 2018 (in thousands, except per share data) 4th Quarter 3rd Quarter 2nd Quarter 1st Quarter Interest and dividend income $ 17,680 $ 17,266 $ 16,369 $ 15,572 Interest expense 2,215 1,971 1,803 1,662 Net interest income 15,465 15,295 14,566 13,910 Provision for loan losses 526 526 526 411 Net interest income after provision for loan losses 14,939 14,769 14,040 13,499 Noninterest income 3,767 3,941 3,665 3,157 Operating expenses 10,986 11,181 10,947 10,307 Income tax expense 1,569 1,387 1,226 1,118 Net income $ 6,151 $ 6,142 $ 5,532 $ 5,231 Earnings per share Basic $ 0.92 $ 0.91 $ 0.82 $ 0.78 Diluted $ 0.91 $ 0.91 $ 0.82 $ 0.77

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Management has evaluated subsequent events and transactions through March 27, 2020 , the date that the financial statements were available to be issued. As a result of the spread of the novel coronavirus and the falling interest rate environment, economic uncertainties have arisen which are likely to negatively impact net income. Other financial impact could occur, though such potential impact is unknown at this time.

Parent Company Financial Statem

Parent Company Financial Statements	12 Months Ended
	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
Parent Company Financial Statements	Parent Company Financial Statements PARENT COMPANY BALANCE SHEETS (dollars in thousands, except share amounts) December 31, 2019 2018 ASSETS Cash and cash equivalents $ 26,264 $ 3,711 Interest-bearing deposits in subsidiary bank — 8,000 Investment in subsidiary bank 225,606 192,756 Investment in Red River Statutory Trust II — 93 Investment in Red River Statutory Trust III — 93 Investment in FBT Capital Trust I — 155 Other assets 28 236 Total Assets $ 251,898 $ 205,044 LIABILITIES Debentures payable to Red River Statutory Trust II $ — $ 3,093 Debentures payable to Red River Statutory Trust III — 3,093 Debentures payable to FBT Capital Trust I — 5,155 Total Liabilities — 11,341 STOCKHOLDERS' EQUITY Preferred stock, no par value: — — Common stock, no par value: 68,082 41,094 Additional paid-in capital 1,269 1,042 Retained earnings 182,571 159,073 Accumulated other comprehensive income (loss) (24 ) (7,506 ) Total Stockholders' Equity 251,898 193,703 Total Liabilities and Stockholders' Equity $ 251,898 $ 205,044 PARENT COMPANY STATEMENTS OF INCOME (in thousands) Years ended December 31, 2019 2018 INCOME Interest and dividend income from subsidiaries $ 428 $ 495 Total income 428 495 EXPENSES Interest on junior subordinated debentures 385 558 Technology expenses 76 1 Legal and professional expenses 575 291 Advertising 3 — Other operating expenses 78 34 Total expenses 1,117 884 Income tax expense (benefit) (145 ) (74 ) Income (Loss) Before Equity in Undistributed Earnings of Subsidiaries (544 ) (315 ) Equity in undistributed earnings of subsidiaries 25,368 23,371 Net Income $ 24,824 $ 23,056 PARENT COMPANY STATEMENTS OF CASH FLOWS (in thousands) Years Ended December 31, 2019 2018 CASH FLOWS FROM OPERATING ACTIVITIES Net income $ 24,824 $ 23,056 Adjustments to reconcile net income to net cash Amortization of debt issuance costs 38 3 Undistributed earnings of subsidiaries (25,368 ) (23,371 ) Other operating activities, net 834 88 Net cash provided by (used in) operating activities 328 (224 ) CASH FLOWS FROM INVESTING ACTIVITIES (Increase) decrease interest-bearing deposits in subsidiary bank 8,000 9,000 Net cash provided by (used in) investing activities 8,000 9,000 CASH FLOWS FROM FINANCING ACTIVITIES Redemption of junior subordinated debentures (11,341 ) — Proceeds from exercise of stock options 80 53 Payment to repurchase common stock — (4,590 ) Proceeds from initial public offering, net 26,812 — Cash dividends (1,326 ) (1,009 ) Net cash provided by (used in) financing activities 14,225 (5,546 ) Net change in cash and cash equivalents 22,553 3,230 Cash and cash equivalents - beginning of year 3,711 481 Cash and cash equivalents - end of year $ 26,264 $ 3,711

Business and Summary of Signi_2

Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Business	Business The Company is a bank holding company headquartered in Alexandria, Louisiana. The Company's wholly owned bank subsidiary, Red River Bank, is a Louisiana state-chartered bank that provides a fully integrated suite of banking products and services tailored to the needs of commercial and retail customers. Red River Bank operates from a network of 25 banking centers throughout Louisiana. Banking centers are located in the following Louisiana markets: Central Louisiana, which includes the Alexandria MSA; Northwest Louisiana, which includes the Shreveport-Bossier City MSA; Southeast Louisiana, which includes the Baton Rouge MSA; Southwest Louisiana, which includes the Lake Charles MSA; and the Northshore, which includes Covington.
Basis of Presentation	Basis of Presentation
Non-Bank Subsidiaries	Non-Bank Subsidiaries Red River Bank's consolidated financial statements include its wholly owned subsidiaries Rivermark Properties, LLC and Source BIDCO. The Bank dissolved Source BIDCO in the first quarter of 2020. The Company sponsored three trusts that were not consolidated. These trusts were utilized for the issuance of trust preferred securities. The three trusts were terminated during 2019. For more information on these trusts, see "Note 7. Junior Subordinated Debentures."
Operating Segments	Operating Segments While the chief decision-makers monitor the revenue streams of the various products and services, operations are managed and financial performance is evaluated on a company-wide basis. Operating segments are aggregated into one as operating results for all segments are similar. Accordingly, all of the financial service operations are considered by management to be aggregated in one reportable operating segment.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at 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.
Acquisition Accounting	Acquisition Accounting The Company accounts for its acquisitions under ASC Topic 805, Business Combinations, which requires the use of the acquisition method of accounting. Purchased assets, including loans, and assumed liabilities are recorded at their respective acquisition date fair values. Fair values are subject to refinement up to one year after the closing date of an acquisition as information relative to closing date fair values becomes available. Loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in ASC Topic 820, Fair Value Measurements and Disclosures. The fair value estimates associated with the loans include estimates related to expected prepayments and the amount and timing of expected principal, interest, and other cash flows. Acquired loans for which all contractual cash flows are expected to be received are accounted for under the accounting guidance found in ASC Topic 310-20, Receivables - Nonrefundable Fees and Other Costs. Acquired loans with evidence of credit deterioration are accounted for under the accounting guidance found in ASC Topic 310-30, Receivables - Loans and Debt Securities Acquired with Deteriorated Credit Quality. There is no carryover of related allowance for loan losses at the acquisition date as assumptions regarding credit risk are incorporated in the valuation process. However, subsequent to acquisition, the acquired loan portfolio is periodically reviewed, and an allowance for loan losses may be established for probable losses incurred after the acquisition date.
Interest Bearing Deposits In Other Banks	Interest-Bearing Deposits in Other Banks Interest-bearing deposits in other banks consist of money market and checking accounts and are carried at cost.
Securities	Securities All debt securities of the Company as of December 31, 2019 , were classified as AFS and are recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income, net of tax. Realized gains and losses on the sale of securities are determined using the specific-identification method. Purchased premiums and discounts are recognized in interest income using the interest method over the term of the securities. Equity securities include a CRA mutual fund owned by the Company, which subsequent to the adoption of ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10) on January 1, 2018, is carried at fair value with any periodic changes in value recorded through the statements of income. Prior to the adoption of this standard, equity securities were included in AFS securities. Declines in the fair value of HTM and AFS debt securities below their cost that are deemed to be other-than-temporary are reflected in earnings as realized losses to the extent the losses are credit related. FASB issued accounting guidance related to the recognition and presentation of OTTI. The accounting guidance specifies that if (a) a company does not have the intent to sell a debt security prior to recovery; and (b) it is more likely than not that it will not have to sell the debt security prior to recovery, the security would not be considered other-than-temporarily impaired unless there is a credit loss. When an entity does not intend to sell the security, and it is more likely than not that the entity will not have to sell the security before recovery of its cost basis, the entity will recognize the credit component of an OTTI of a debt security in earnings and the remaining portion in other comprehensive income. For HTM debt securities, the amount of OTTI recorded in other comprehensive income for the noncredit portion of an OTTI should be amortized over the remaining life of the security based on the timing of its future estimated cash flows.
Nonmarketable Equity Securities	Nonmarketable Equity Securities Nonmarketable equity securities include investments in the FHLB and First National Banker’s Bank and are carried at cost.
Loans Held for Sale	Loans Held for Sale Residential mortgage loans originated and intended for sale are carried at the lower of cost or estimated fair value on an individual basis. These mortgage loans are pre-sold prior to funding. Therefore, management believes there to be minimal risk of loss associated with these assets.
Loans Held for Investment	Loans Held for Investment Loans are placed on nonaccrual when management determines that a borrower may be unable to meet future contractual payments as they become due or when such loans become 90 days past due, unless they are well secured and in the process of collection. When a loan is placed on nonaccrual, uncollected accrued interest is reversed, reducing interest income, and future income accrual is discontinued. Subsequent payments, if any, of interest and fees are applied as reductions to the loan’s outstanding principal balance. Once the principal balance of a loan placed on nonaccrual has been fully recovered, subsequent payments received are recognized as income on a cash basis. Loans are returned to accrual status when the principal and interest amounts contractually due are brought current and future payments are reasonably assured. A loan is charged-off to the allowance for loan losses in full when management is relatively certain that principal and interest will be uncollectible. Management may elect to partially charge-off a loan to adjust the principal balance to the net realizable value of the collateral that secures the loan. When a partial charge-off is made, the remaining balance of the loan is placed on nonaccrual. Recoveries of amounts previously charged-off, if any, are credited to the allowance for loan losses until the principal balance of the loan is fully recovered. Any subsequent payments are recognized as income.
Allowance for Loan Losses	Allowance for Loan Losses The allowance for loan losses provides for known and inherent losses in the loan portfolio based upon management’s best assessment of the loan portfolio at each balance sheet date. It is maintained at a level estimated to be adequate to absorb potential losses through periodic charges to the provision for loan losses. The allowance for loan losses consists of specific and general reserves. Specific reserves relate to loans classified as impaired. Loans are considered impaired when, based on current information and events, it is probable that the Bank will be unable to collect all amounts due in accordance with the contractual terms of the loan. Impaired loans include TDRs and performing and nonperforming loans. Impaired loans are reviewed individually, and a specific allowance is allocated, if necessary, based on evaluation of either the fair value of the collateral underlying the loan or the present value of future cash flows calculated using the loan’s existing interest rate. General reserves relate to the remainder of the loan portfolio, including overdrawn deposit accounts, and are based on evaluation of a number of factors, such as current economic conditions, the quality and composition of the loan portfolio, loss history, and other relevant factors. The Bank’s loans are generally secured by specific items of collateral including real property, consumer assets, and business assets. Although the Bank has a diversified loan portfolio, a substantial portion of its borrowers’ ability to honor their contractual repayment obligations is dependent on changing economic conditions. Because of the uncertainties associated with economic conditions, collateral values, and future cash flows on impaired loans, it is reasonably possible that management’s estimate of loan losses in the loan portfolio and the amount of the allowance needed may change in the future. The determination of the allowance for loan losses is, in a large part, based on estimates that are particularly susceptible to significant changes in the economic environment and market conditions. In situations where the repayment of a loan is dependent on the value of the underlying collateral, an independent appraisal of the collateral’s current market value is customarily obtained and used in the determination of the allowance for loan loss. While management uses available information to recognize losses on loans, further reductions in the carrying amounts of loans may be necessary based on changes in economic conditions. Also regulatory agencies, as an integral part of their examination process, periodically review management’s assessments of the adequacy of the allowance for loan losses. Such agencies may require the Bank to recognize additional losses based on their judgments about information available to them at the time of their examination.
Foreclosed Assets	Foreclosed Assets
Credit Related Financial Information	Credit Related Financial Information In the ordinary course of business, the Bank has entered into commitments to extend credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they are funded.
Premises and Equipment, Net	Premises and Equipment, Net Premises and equipment are stated at cost less accumulated depreciation, which is computed using the straight-line method over the estimated useful lives of the assets, which range from 3 to 39 years.
Intangible Assets	Intangible Assets Intangible assets consist of goodwill. Goodwill represents the excess purchase price over the fair value of net assets acquired in business acquisitions. Goodwill is not amortized but rather evaluated for impairment annually. The Company performed its annual impairment test of goodwill for 2019 and 2018 as required by ASC 350, Intangibles - Goodwill and Other. The evaluation indicated no impairment of the Company’s goodwill.
Stock-Based Compensation Plans	Stock-Based Compensation Plans The Company has adopted stock incentive plans that provide for the granting of stock-based payment arrangements for key employees and non-employee members of the Company’s Board of Directors. The Company accounts for the stock incentive plans in accordance with applicable accounting guidance. Under the fair value recognition provisions of this guidance, stock-based compensation cost is measured at the grant date based on the fair value of the award and recognized as expense on a straight-line basis over the requisite service period, which is the vesting period. The options granted under these plans are to purchase common stock at an exercise price not less than the fair market value of the common stock at the date of the grant. The options vest and become exercisable in twenty percent increments over a five -year period. The restricted stock granted under these plans provide common stock to recipients at the grant date. The restrictions vest in twenty percent increments over a five -year period. The Company recognizes forfeitures as they occur. The Company has a Director Compensation Program which allows directors the option of receiving payment for director fees in Company stock. Board compensation expense is recorded when board service is rendered.
Income Tax	ncome Tax The provision for income tax is based on taxes payable or receivable for the current year and deferred taxes on temporary differences between the tax bases of assets and liabilities and their reported amounts in the financial statements. Deferred tax assets and liabilities are included in the financial statements at currently enacted income tax rates applicable to the period in which the deferred tax assets and liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. The Company has adopted the provisions of accounting guidance related to accounting for uncertainty in income taxes. This interpretation clarifies that the benefit of a position taken or expected to be taken in a tax return should be recognized in a company’s financial statements when it is more likely than not that the position will be sustained based on technical merits. The Company recognizes interest and penalties on income taxes as a component of income tax expense. The effect on deferred tax assets of a change in tax rate is recognized in income as part of income tax expense for the period that includes the enactment date. As a result of the enactment in 2017 of the Tax Reform Act, deferred tax assets and liabilities have been measured as of December 31, 2019 and 2018 , using the 21.0% corporate tax rate. For the impact on net income, see "Note 9. Income Tax Expense."
Earnings per Common Share	Earnings per Common Share Basic EPS is computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period, after giving retroactive effect to stock splits. Diluted EPS includes accrued but unissued shares relating to the Directors’ Compensation Program, stock options, and restricted stock determined using the treasury stock method. A reconciliation of the weighted-average shares used in calculating basic EPS and diluted EPS for the reported periods is provided in "Note 17. Earnings Per Common Share."
Treasury Stock	Treasury Stock On January 1, 2015, the Louisiana Business Corporation Act (“the Act”) became effective. Under provisions of the Act, there is no concept of “Treasury Shares.” Rather, shares purchased by the Company constitute authorized but unissued shares. Accordingly, the Company’s consolidated balance sheets reflect the cost of shares purchased by the Company within common stock.
Comprehensive Income	Comprehensive Income Comprehensive income is the change in stockholders’ equity during the period from transactions and other events and circumstances from non-owner sources. Other comprehensive income includes unrealized net gains (losses), net of taxes, on AFS securities.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents consist of cash and due from banks and interest-bearing deposits in other banks.
Advertising Costs	Advertising Costs Advertising costs are expensed as incurred.
Revenue Recognition	The implementation of the new standard did not have a material impact on the measurement or recognition of revenue for any of the identified in-scope revenue streams, and a cumulative effect adjustment to opening retained earnings was not necessary. Results for reporting periods beginning after January 1, 2018, are presented under Topic 606 , using the modified retrospective transition method. the principal in each of these contracts with the exception of credit and debit card interchange fees, online transaction interchange fees, sweep income, and brokerage services income, in which case the Company is acting as the agent and records revenue net of expenses paid. • There are no significant judgments relating to the amount and timing of revenue recognition for revenue streams within the scope of Topic 606 . Due to the nature of the services we provide to our customers, we do not incur costs to obtain contracts, and there are no material incremental costs to fulfill these contracts that should be capitalized. Additionally, there are no material contract assets or receivables as the Company does not typically enter into long-term revenue contracts with customers. Revenue Recognition Effective January 1, 2018, the Company adopted ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) and all subsequent ASUs that modified Topic 606 . As the standard does not apply to revenue associated with receivables or financial instruments, net interest income, gains and losses from securities, and income from BOLI are not impacted by the standard. The Company has identified certain recurring revenue streams related to noninterest income which are within the scope of Topic 606 . In-scope revenue streams are summarized based on the timing of revenue recognition as follows: •
Accounting Standards Adopted in 2019 and Issued but Not Adopted Accounting Standards	Accounting Standards Adopted in 2019 A SU No. 2016-02, Leases (Topic 842) . The primary purpose of this ASU was to increase the transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet requiring more disclosures related to leasing transactions. ASU 2016-02 (Topic 842) and the related amendments using the modified retrospective approach was adopted as of January 1, 2019. The Company recorded right-of-use assets and corresponding lease liabilities of $4.9 million at the time of adoption. The required disclosures are included in "Note 8. Leases" of these audited consolidated financial statements. ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. ASU 2017-12 amends the guidance to better align an entity's risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. These amendments will improve the transparency of information about an entity's risk management activities and simplify the application of hedge accounting. ASU 2017-12 became effective for the Company on January 1, 2019, and did not have a material impact on the Company's financial statements. Issued but Not Adopted Accounting Standards ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The guidance issued in this update simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, and the recognition for deferred tax liabilities for outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted tax changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. ASU 2019-12 is effective for annual periods beginning after December 15, 2020, with early adoption permitted. The adoption of this guidance is not expected to have a material impact on the consolidated financial statements. ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. This ASU eliminates, adds, and modifies certain disclosure requirements for fair value measurements as part of its disclosure framework project. The standard is effective for all entities for financial statements issued for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted. The adoption of this guidance is not expected to have a material impact on the consolidated financial statements. ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairmen t. This ASU simplifies the accounting for goodwill impairment for all entities by requiring impairment charges to be based on the first step in today’s two-step impairment test. Under the new guidance, if a reporting unit’s carrying amount exceeds its fair value, an entity will record an impairment based on that difference. The impairment will be limited to the amount of goodwill allocated to that reporting unit. The standard eliminates the requirement to calculate a goodwill impairment using Step 2, which requires an entity to calculate any impairment by comparing the implied fair value of goodwill with its carrying amount. For public business entities, this ASU is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods. The adoption of ASU 2017-04 is not expected to have a material impact on the amounts or disclosures in the consolidated financial statements. ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. ASU 2016-13 sets forth the CECL model requiring the Company to measure all expected credit losses for financial instruments held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. ASU 2016-13 requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses. In addition, the update amends the accounting for credit losses on AFS securities. As an SEC registrant with smaller reporting company filing status, CECL is effective for the Company January 1, 2023. The Company continues to evaluate the impact of this ASU on the consolidated financial statements and disclosures. In that regard, the Company has formed a cross-functional working group and is currently working through an implementation plan. The implementation plan includes an assessment of data, model development and documentation, documentation of processes, and implementation of a third-party vendor solution to assist in the adoption of ASU 2016-13 .
Reclassification	Reclassification Certain amounts in the 2018 consolidated financial statements have been reclassified to conform to the 2019 presentation. These changes in presentation did not have a material impact on the Company's financial condition or results of operations.

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Schedule of debt securities available for sale	The amortized cost and estimated fair values of securities AFS are summarized in the following tables: December 31, 2019 (in thousands) Amortized Gross Gross Fair Securities AFS: Mortgage-backed securities $ 236,572 $ 299 $ (1,200 ) $ 235,671 Municipal bonds 91,929 1,108 (279 ) 92,758 U.S. agency securities 7,102 46 (4 ) 7,144 Total Securities AFS $ 335,603 $ 1,453 $ (1,483 ) $ 335,573 December 31, 2018 (in thousands) Amortized Gross Gross Fair Securities AFS: Mortgage-backed securities $ 221,799 $ 11 $ (7,122 ) $ 214,688 Municipal bonds 70,416 94 (2,235 ) 68,275 U.S. agency securities 23,170 6 (261 ) 22,915 U.S. Treasury securities 1,994 5 — 1,999 Total Securities AFS $ 317,379 $ 116 $ (9,618 ) $ 307,877
Schedule of maturities of securities available for sale	The amortized costs and estimated market values of debt securities as of December 31, 2019 , by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because issuers have the right to call or repay obligations with or without call or prepayment penalties. (in thousands) Amortized Cost Fair Value Within one year $ 2,182 $ 2,187 After one year but within five years 30,064 29,948 After five years but within ten years 69,467 69,903 After ten years 233,890 233,535 Total $ 335,603 $ 335,573
Schedule of debt securities available for sale in unrealized loss position	Information pertaining to securities with gross unrealized losses as of December 31, 2019 and December 31, 2018 , aggregated by investment category and length of time that individual securities have been in a continuous loss position is described as follows: Less than twelve months Twelve months or more (in thousands) Gross Unrealized Losses Fair Value Gross Fair December 31, 2019 Securities AFS: Mortgage-backed securities $ (474 ) $ 109,416 $ (726 ) $ 70,425 Municipal bonds (172 ) 18,735 (107 ) 9,323 U.S. agency securities (4 ) 1,020 — — Total Securities AFS $ (650 ) $ 129,171 $ (833 ) $ 79,748 December 31, 2018 Securities AFS: Mortgage-backed securities $ (75 ) $ 8,845 $ (7,047 ) $ 200,532 Municipal bonds (48 ) 3,389 (2,187 ) 52,879 U.S. agency securities (41 ) 3,801 (220 ) 14,123 Total Securities AFS $ (164 ) $ 16,035 $ (9,454 ) $ 267,534
Schedule of proceeds from sales of securities AFS and gross gain (loss)	The proceeds from sales of securities AFS and gross gain (loss) for the years ended December 31, 2019 and 2018, are shown below: Years Ended December 31, (in thousands) 2019 2018 Proceeds (1) $ 58,859 $ 5,282 Gross gain 309 57 Gross loss (291 ) (25 ) (1)

Loans and Asset Quality (Tables

Loans and Asset Quality (Tables)	12 Months Ended
	Dec. 31, 2019
Receivables [Abstract]
Schedule of loans information	Total loans HFI by category and loans HFS are summarized below: December 31, (in thousands) 2019 2018 Real estate: Commercial real estate $ 531,990 $ 454,689 One-to-four family residential 420,020 406,963 Construction and development 132,461 102,868 Commercial and industrial 267,940 275,881 Tax-exempt 56,494 60,104 Consumer 30,019 27,933 Total loans HFI $ 1,438,924 $ 1,328,438 Total loans HFS $ 5,089 $ 2,904
Schedule of related party transactions	An analysis of loan activity to these related parties is as follows: Years ended December 31, (in thousands) 2019 2018 Balance - beginning of period $ 40,311 $ 41,463 New loans/changes in relationships 33,354 31,688 Repayments/changes in relationships (43,056 ) (32,840 ) Balance - end of period $ 30,609 $ 40,311
Schedule of allowance for credit losses	The following table summarizes the activity in the allowance for loan losses by category for the year ended December 31, 2019 : (in thousands) Beginning Balance Provision for Loan Losses Loans Charged-off Recoveries Ending Balance Real estate: Commercial real estate $ 3,081 $ 373 $ — $ — $ 3,454 One-to-four family residential 3,146 216 (44 ) 5 3,323 Construction and development 951 172 — 88 1,211 Commercial and industrial 4,604 850 (864 ) 585 5,175 Tax-exempt 372 (38 ) — — 334 Consumer 370 237 (311 ) 144 440 Total allowance for loan losses $ 12,524 $ 1,810 $ (1,219 ) $ 822 $ 13,937 The following table summarizes the activity in the allowance for loan losses by category for the year ended December 31, 2018 : (in thousands) Beginning Balance Provision for Loan Losses Loans Charged-off Recoveries Ending Balance Real estate: Commercial real estate $ 3,270 $ (189 ) $ (27 ) $ 27 $ 3,081 One-to-four family residential 3,099 (136 ) (4 ) 187 3,146 Construction and development 852 99 — — 951 Commercial and industrial 2,836 2,112 (353 ) 9 4,604 Tax-exempt 432 (60 ) — — 372 Consumer 406 164 (353 ) 153 370 Total allowance for loan losses $ 10,895 $ 1,990 $ (737 ) $ 376 $ 12,524 The balance in the allowance for loan losses and the related recorded investment in loans by category as of December 31, 2019 , are as follows: (in thousands) Individually Evaluated for Impairment Collectively Acquired with Deteriorated Credit Quality Total Allowance for loan losses: Real estate: Commercial real estate $ 260 $ 3,194 $ — $ 3,454 One-to-four family residential 31 3,292 — 3,323 Construction and development 10 1,201 — 1,211 Commercial and industrial 2,916 2,259 — 5,175 Tax-exempt — 334 — 334 Consumer 71 369 — 440 Total allowance for loan losses $ 3,288 $ 10,649 $ — $ 13,937 Loans: Real estate: Commercial real estate $ 2,639 $ 529,351 $ — $ 531,990 One-to-four family residential 1,193 418,827 — 420,020 Construction and development 38 132,423 — 132,461 Commercial and industrial 8,797 259,143 — 267,940 Tax-exempt — 56,494 — 56,494 Consumer 75 29,944 — 30,019 Total loans HFI $ 12,742 $ 1,426,182 $ — $ 1,438,924 The balance in the allowance for loan losses and the related recorded investment in loans by category as of December 31, 2018 , are as follows: (in thousands) Individually Evaluated for Impairment Collectively Acquired with Deteriorated Credit Quality Total Allowance for loan losses: Real estate: Commercial real estate $ 206 $ 2,875 $ — $ 3,081 One-to-four family residential 20 3,126 — 3,146 Construction and development 12 939 — 951 Commercial and industrial 2,304 2,300 — 4,604 Tax-exempt — 372 — 372 Consumer 75 295 — 370 Total allowance for loan losses $ 2,617 $ 9,907 $ — $ 12,524 Loans: Real estate: Commercial real estate $ 3,829 $ 450,860 $ — $ 454,689 One-to-four family residential 2,348 404,615 — 406,963 Construction and development 55 102,813 — 102,868 Commercial and industrial 15,516 260,365 — 275,881 Tax-exempt — 60,104 — 60,104 Consumer 104 27,829 — 27,933 Total loans HFI $ 21,852 $ 1,306,586 $ — $ 1,328,438
Schedule of financing receivable past due	A summary of current, past due, and nonaccrual loans as of December 31, 2019 , is as follows: Accruing (in thousands) Current 30-89 Days 90 Days or More Past Due Nonaccrual Total Loans Real estate: Commercial real estate $ 530,712 $ — $ — $ 1,278 $ 531,990 One-to-four family residential 419,229 184 — 607 420,020 Construction and development 132,423 — — 38 132,461 Commercial and industrial 264,427 143 — 3,370 267,940 Tax-exempt 56,494 — — — 56,494 Consumer 29,973 20 — 26 30,019 Total loans HFI $ 1,433,258 $ 347 $ — $ 5,319 $ 1,438,924 A summary of current, past due, and nonaccrual loans as of December 31, 2018 , is as follows: Accruing (in thousands) Current 30-89 Days 90 Days or More Past Due Nonaccrual Total Loans Real estate: Commercial real estate $ 452,477 $ — $ 850 $ 1,362 $ 454,689 One-to-four family residential 405,961 512 66 424 406,963 Construction and development 102,776 36 1 55 102,868 Commercial and industrial 272,174 32 — 3,675 275,881 Tax-exempt 60,104 — — — 60,104 Consumer 27,851 16 22 44 27,933 Total loans HFI $ 1,321,343 $ 596 $ 939 $ 5,560 $ 1,328,438
Schedule of impaired financing receivable	Impaired loans include TDRs and performing and nonperforming loans. Information pertaining to impaired loans as of December 31, 2019 , is as follows: (in thousands) Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Real estate: Commercial real estate $ 1,560 $ 1,537 $ — $ 2,647 $ 74 One-to-four family residential 1,040 984 — 1,194 44 Construction and development — — — 76 — Commercial and industrial 1,805 1,474 — 3,685 3 Tax-exempt — — — — — Consumer 2 2 — 9 — Total with no related allowance 4,407 3,997 — 7,611 121 With allowance recorded: Real estate: Commercial real estate 1,263 1,102 260 1,076 — One-to-four family residential 216 209 31 339 — Construction and development 51 38 10 89 — Commercial and industrial 8,544 7,323 2,916 7,746 299 Tax-exempt — — — — — Consumer 76 73 71 76 4 Total with related allowance 10,150 8,745 3,288 9,326 303 Total impaired loans $ 14,557 $ 12,742 $ 3,288 $ 16,937 $ 424 Information pertaining to impaired loans as of December 31, 2018 , is as follows: (in thousands) Unpaid Principal Balance Recorded Investment Related Allowance Average Recorded Investment Interest Income Recognized With no related allowance recorded: Real estate: Commercial real estate $ 2,376 $ 2,255 $ — $ 2,470 $ 72 One-to-four family residential 1,912 1,855 — 2,026 149 Construction and development 18 16 — 738 — Commercial and industrial 11,003 9,707 — 8,909 345 Tax-exempt — — — — — Consumer 12 12 — 10 — Total with no related allowance 15,321 13,845 — 14,153 566 With allowance recorded: Real estate: Commercial real estate 1,584 1,574 206 1,715 132 One-to-four family residential 507 493 20 497 23 Construction and development 52 39 12 41 — Commercial and industrial 5,809 5,809 2,304 5,813 210 Tax-exempt — — — — — Consumer 95 92 75 35 1 Total with related allowance 8,047 8,007 2,617 8,101 366 Total impaired loans $ 23,368 $ 21,852 $ 2,617 $ 22,254 $ 932
Schedule of TDRs	A summary of current, past due, and nonaccrual TDR loans as of December 31, 2019 , is as follows: (dollars in thousands) Current 30-89 Days 90 Days or More Past Due Nonaccrual Total TDRs Real estate: Commercial real estate $ 1,361 $ — $ — $ 1,278 $ 2,639 One-to-four family residential 252 — — — 252 Construction and development — — — 38 38 Commercial and industrial 36 — — 1,869 1,905 Tax-exempt — — — — — Consumer 46 — — — 46 Total $ 1,695 $ — $ — $ 3,185 $ 4,880 Number of TDR loans 12 — — 6 18 A summary of current, past due, and nonaccrual TDR loans as of December 31, 2018 , is as follows: (dollars in thousands) Current 30-89 Days 90 Days or More Past Due Nonaccrual Total TDRs Real estate: Commercial real estate $ 1,267 $ — $ — $ 1,362 $ 2,629 One-to-four family residential 208 — — — 208 Construction and development — — — 39 39 Commercial and industrial 41 — — 2,139 2,180 Tax-exempt — — — — — Consumer 56 — — — 56 Total $ 1,572 $ — $ — $ 3,540 $ 5,112 Number of TDR loans 10 — — 6 16 A summary of loans modified as TDRs that occurred during the years ended December 31, 2019 and 2018 , is as follows: 2019 2018 Recorded Investment Recorded Investment (dollars in thousands) Loan Count Pre Modification Post Modification Loan Count Pre Modification Post Modification Real estate: Commercial real estate 1 $ 166 $ 166 1 $ 435 $ 479 One-to-four family residential 1 60 62 1 40 40 Construction and development — — — — — — Commercial and industrial 1 4 4 — — — Tax-exempt — — — — — — Consumer — — — 1 58 58 Total 3 $ 230 $ 232 3 $ 533 $ 577
Schedule of financing receivable by credit risk	The following table summarizes loans by risk rating as of December 31, 2019 : (in thousands) Pass Special Mention Substandard Doubtful Loss Total Real estate: Commercial real estate $ 515,926 $ 14,118 $ 1,946 $ — $ — $ 531,990 One-to-four family residential 416,884 2,021 1,115 — — 420,020 Construction and development 131,185 565 711 — — 132,461 Commercial and industrial 247,382 11,473 9,085 — — 267,940 Tax-exempt 56,494 — — — — 56,494 Consumer 29,876 5 138 — — 30,019 Total loans HFI $ 1,397,747 $ 28,182 $ 12,995 $ — $ — $ 1,438,924 The following table summarizes loans by risk rating as of December 31, 2018 : (in thousands) Pass Special Mention Substandard Doubtful Loss Total Real estate: Commercial real estate $ 439,580 $ 11,883 $ 3,226 $ — $ — $ 454,689 One-to-four family residential 402,864 1,992 2,107 — — 406,963 Construction and development 101,754 375 739 — — 102,868 Commercial and industrial 251,987 8,311 15,583 — — 275,881 Tax-exempt 60,104 — — — — 60,104 Consumer 27,729 44 160 — — 27,933 Total loans HFI $ 1,284,018 $ 22,605 $ 21,815 $ — $ — $ 1,328,438

Premises and Equipment, Net (Ta

Premises and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Schedule of components of premises and equipment	Components of premises and equipment were as follows: December 31, (in thousands) 2019 2018 Land $ 14,495 $ 12,087 Buildings 28,478 23,809 Leasehold improvements 2,720 2,709 Furniture and equipment 12,002 11,285 Vehicles 341 339 Computer equipment 3,185 2,919 Projects in process 1,609 6,152 Total premises and equipment 62,830 59,300 Less: Accumulated depreciation (21,086 ) (19,610 ) Premises and equipment, net $ 41,744 $ 39,690

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2019
Banking and Thrift [Abstract]
Schedule of deposits	Deposits are summarized below: December 31, (in thousands) 2019 2018 Noninterest-bearing demand deposits $ 584,915 $ 547,880 Interest-bearing deposits: NOW accounts 331,374 304,545 Money market deposits 367,689 358,575 Savings accounts 103,984 104,355 Time deposits < $100,000 110,636 119,637 Time deposits $100,000 to $250,000 131,957 128,637 Time deposits > $250,000 90,565 81,954 Total interest-bearing deposits 1,136,205 1,097,703 Total deposits $ 1,721,120 $ 1,645,583
Schedule of maturities of outstanding certificates of deposit	As of December 31, 2019 , the scheduled maturities of all outstanding certificates of deposit were as follows: Years ending December 31, Amount (in thousands) 2020 $ 205,144 2021 62,292 2022 25,032 2023 14,633 2024 11,138 Thereafter 14,919 $ 333,158

Junior Subordinated Debentures

Junior Subordinated Debentures (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of junior subordinated debentures	As of December 31, 2019 and December 31, 2018, floating rate junior subordinated debentures were as follows: (dollars in thousands) Trust II Trust III FBT CT I Total December 31, 2019 Trust preferred securities $ — $ — $ — $ — Common securities $ — $ — $ — $ — Total junior subordinated debentures $ — $ — $ — $ — December 31, 2018 Trust preferred securities $ 3,000 $ 3,000 $ 5,000 $ 11,000 Common securities 93 93 155 341 Total junior subordinated debentures $ 3,093 $ 3,093 $ 5,155 $ 11,341 Issue date May 28, 2003 April 20, 2005 September 4, 2003 Call date May 28, 2008 June 15, 2010 August 8, 2008 Maturity date May 28, 2033 June 15, 2035 August 8, 2033 Redemption date June 30, 2019 June 17, 2019 August 8, 2019 Interest rate as of the redemption date 5.84 % 4.58 % 5.58 % Interest rate as of December 31, 2018 5.65 % 4.30 % 5.34 %

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Information about operating leases	The table below summarizes other information related to the Company's operating leases: As of and for the Year Ended (dollars in thousands) December 31, 2019 Cash paid for amounts included in measurement of lease liabilities for operating leases $ 500 Weighted average remaining operating lease term 10.3 years Weighted average operating lease discount rate 3.4 %
Schedule of maturity of operating lease liability	Future obligations over the primary and renewal option terms of the Company’s long-term operating leases as of December 31, 2019 , were as follows: Years Ending December 31, Amount (in thousands) 2020 $ 520 2021 529 2022 537 2023 539 2024 539 Thereafter 2,815 Total lease payments 5,479 Less: Imputed interest (876 ) Present value of lease liabilities $ 4,603

Income Tax Expense (Tables)

Income Tax Expense (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Schedule of components of income tax expense	The components of income tax expense for the years ended December 31, 2019 and 2018 , were as follows: Years Ended December 31, (in thousands) 2019 2018 Current tax expense $ 6,196 $ 5,752 Deferred tax expense (benefit) (556 ) (452 ) Income tax expense $ 5,640 $ 5,300
Schedule of effective income tax rate reconciliation	The source and tax effect of items reconciling income tax expense to the amount computed by applying the federal income tax rates in effect to income before income tax expense as of December 31, 2019 and 2018 , are as follows: December 31, 2019 2018 (dollars in thousands) Amount Percent Amount Percent Income before income tax expense $ 30,464 100.0 % $ 28,356 100.0 % U.S. federal income tax expense 6,397 21.0 % 5,955 21.0 % Nontaxable income (803 ) (2.7 )% (765 ) (2.7 )% Nondeductible expenses 22 0.1 % 34 0.1 % Other 24 0.1 % 76 0.3 % Income tax expense $ 5,640 18.5 % $ 5,300 18.7 %
Schedule of deferred tax assets (liabilities)	The deferred tax assets (liabilities) were comprised of the following as of December 31, 2019 and 2018 : December 31, (in thousands) 2019 2018 Depreciation $ (1,467 ) $ (1,481 ) FHLB stock dividends (16 ) (13 ) Other — (18 ) Gross deferred tax liability (1,483 ) (1,512 ) Allowance for loan losses 2,920 2,572 Allowance for operational losses 36 47 Health insurance self fund 208 212 Deferred compensation 762 689 Unrealized loss on securities 6 1,996 Equity security valuation 14 45 Advance payment 187 224 Accrued bonus 139 — Other 152 126 Gross deferred tax asset 4,424 5,911 Net deferred tax asset (liability) $ 2,941 $ 4,399

Stock-Based Compensation Plans

Stock-Based Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Schedule of stock option plan	The status of the Company’s stock option plan is presented below: Stock Options Number of Shares Exercise Price Range Weighted Average Price Outstanding - December 31, 2017 33,500 $12.32 - $17.33 $ 14.56 Exercised (1) (5,500 ) $12.32 - $14.31 $ 13.04 Outstanding - December 31, 2018 28,000 $12.32 - $17.33 $ 14.85 Exercised (2) (7,500 ) $12.32 $ 12.32 Outstanding - December 31, 2019 20,500 $14.31 - $17.33 $ 15.78 (1) A total of 490 shares of the Company’s common stock were surrendered in lieu of payment of a portion of the cash exercise price for options exercised during 2018 , resulting in the net issuance upon exercise of an aggregate of 5,010 shares of the Company’s common stock. (2) A total of 300 shares of the Company’s common stock were surrendered in lieu of payment of a portion of the cash exercise price for options exercised during 2019 , resulting in the net issuance upon exercise of an aggregate of 7,200 shares of the Company’s common stock.
Schedule of nonvested restricted stock	The status of the Company's nonvested restricted stock is presented below: Nonvested Restricted Stock Number of Shares Weighted Average Grant Date Fair Value Nonvested - December 31, 2017 21,650 $ 28.41 Granted 6,750 $ 37.49 Vested (7,210) $ 26.06 Nonvested - December 31, 2018 21,190 $ 32.10 Granted 5,975 $ 48.15 Vested (6,560) $ 30.26 Nonvested - December 31, 2019 20,605 $ 37.34
Schedule of director compensation program	The director compensation program stock earned and the issuance of shares as board compensation for the years ended December 31, 2019 and 2018 , are as follows: Years Ended December 31, (dollars in thousands) 2019 2018 Share-based board compensation earned $ 87 $ 96 Issuance of shares of common stock as board compensation: Number of shares issued 2,368 2,452 Equity impact of shares issued $ 96 $ 92

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of fair value of assets measured on recurring basis	The table below presents the recorded amount of assets measured at fair value on a recurring basis: (in thousands) Fair Value Level 1 Level 2 Level 3 December 31, 2019 Loans HFS $ 5,089 $ — $ 5,089 $ — Securities AFS: Mortgage-backed securities 235,671 — 235,671 — U.S. agency securities 7,144 — 7,144 — Municipal bonds 92,758 — 92,758 — U.S. Treasury securities — — — — Equity securities 3,936 3,936 — — December 31, 2018 Loans HFS $ 2,904 $ — $ 2,904 $ — Securities AFS: Mortgage-backed securities 214,688 — 214,688 — U.S. agency securities 22,915 — 22,915 — Municipal bonds 68,275 — 68,275 — U.S. Treasury securities 1,999 — 1,999 — Equity securities 3,821 3,821 — —
Schedule of fair value of assets measured on nonrecurring basis	The following table presents the recorded amount of assets and liabilities measured at fair value on a nonrecurring basis: (in thousands) Fair Value Level 1 Level 2 Level 3 December 31, 2019 Impaired loans $ 9,454 $ — $ — $ 9,454 Foreclosed assets 1,128 — — 1,128 December 31, 2018 Impaired loans $ 19,235 $ — $ — $ 19,235 Foreclosed assets 646 — — 646
Schedule of inputs used for the Level 3 fair value measurement	The unobservable inputs used for the Level 3 fair value measurements on a nonrecurring basis were as follows: Weighted Average Discount December 31, Valuation Technique Unobservable Input 2019 2018 Impaired loans Discounted appraisals Collateral discounts and costs to sell 25.80% 11.97% Foreclosed assets Discounted appraisals Collateral discounts and costs to sell 2.60% 6.21%
Schedule of carrying amounts and estimated fair values of financial instruments	The carrying amounts and estimated fair values of financial instruments, as of December 31, 2019 and 2018 , were as follows): (in thousands) Carrying Amount Fair Value Level 1 Level 2 Level 3 December 31, 2019 Financial assets: Cash and due from banks $ 25,937 $ 25,937 $ 25,937 $ — $ — Interest-bearing deposits in other banks 107,355 107,355 107,355 — — Securities AFS 335,573 335,573 — 335,573 — Equity securities 3,936 3,936 3,936 — — Nonmarketable equity securities 1,350 1,350 — 1,350 — Loans HFS 5,089 5,089 — 5,089 — Loans HFI, net of allowance 1,424,987 1,426,163 — — 1,426,163 Accrued interest receivable 5,251 5,251 — — 5,251 Financial liabilities: Deposits 1,721,120 1,721,286 — 1,721,286 — Accrued interest payable 2,222 2,222 — 2,222 — December 31, 2018 Financial assets: Cash and due from banks $ 34,070 $ 34,070 $ 34,070 $ — $ — Interest-bearing deposits in other banks 117,836 117,836 117,836 — — Securities AFS 307,877 307,877 — 307,877 — Equity securities 3,821 3,821 3,821 — — Nonmarketable equity securities 1,299 1,299 — 1,299 — Loans HFS 2,904 2,904 — 2,904 — Loans HFI, net of allowance 1,315,914 1,301,960 — — 1,301,960 Accrued interest receivable 5,013 5,013 — — 5,013 Financial liabilities: Deposits 1,645,583 1,641,136 — 1,641,136 — Junior subordinated debentures 11,341 11,341 — 11,341 — Accrued interest payable 1,757 1,757 — 1,757 —

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	12 Months Ended
	Dec. 31, 2019
Banking and Thrift [Abstract]
Schedule of compliance with regulatory capital requirements under banking regulations	Capital amounts and ratios for Red River Bancshares, Inc. as of December 31, 2019 and 2018 , are presented in the following table: Actual (dollars in thousands) Amount Ratio December 31, 2019 Total Risk-Based Capital $ 264,313 18.02 % Tier I Risk-Based Capital $ 250,376 17.07 % Common Equity Tier I Capital $ 250,376 17.07 % Tier I Leverage Capital $ 250,376 12.82 % December 31, 2018 Total Risk-Based Capital $ 223,187 16.55 % Tier I Risk-Based Capital $ 210,663 15.62 % Common Equity Tier I Capital $ 199,663 14.80 % Tier I Leverage Capital $ 210,663 11.40 % Capital amounts and ratios for Red River Bank as of December 31, 2019 and 2018 , are presented in the following table: Regulatory Requirements Actual Minimum Minimum Plus CCB (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio December 31, 2019 Total Risk-Based Capital $ 238,021 16.23 % $ 117,325 8.00 % $ 153,989 10.50 % Tier I Risk-Based Capital $ 224,084 15.28 % $ 87,994 6.00 % $ 124,658 8.50 % Common Equity Tier I Capital $ 224,084 15.28 % $ 65,995 4.50 % $ 102,660 7.00 % Tier I Leverage Capital $ 224,084 11.47 % $ 78,114 4.00 % $ 78,114 4.00 % December 31, 2018 Total Risk-Based Capital $ 211,240 15.66 % $ 107,912 8.00 % $ 133,204 9.88 % Tier I Risk-Based Capital $ 198,716 14.73 % $ 80,934 6.00 % $ 106,226 7.88 % Common Equity Tier I Capital $ 198,716 14.73 % $ 60,701 4.50 % $ 85,993 6.38 % Tier I Leverage Capital $ 198,716 10.76 % $ 73,874 4.00 % $ 73,874 4.00 %

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Schedule of earnings per share	The computations of basic and diluted earnings per common share for the Company were as follows: For the Years Ended December 31, (in thousands, except share amounts) 2019 2018 Numerator: Net income - basic $ 24,824 $ 23,056 Net income - diluted $ 24,824 $ 23,056 Denominator: Weighted average shares outstanding - basic 7,072,689 6,716,943 Plus: Effect of Directors Stock Compensation Program 1,554 2,368 Plus: Effect of stock options and restricted stock 41,271 36,791 Weighted average shares outstanding - diluted 7,115,514 6,756,102 Earnings per common share: Basic $ 3.51 $ 3.43 Diluted $ 3.49 $ 3.41

Quarterly Results of Operatio_2

Quarterly Results of Operations (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Schedule of quarterly results of operations	The following tables present certain unaudited consolidated quarterly financial information regarding the Company's results of operations for each of the eight consecutive quarters in the fiscal years of 2019 and 2018. This information is derived from unaudited consolidated financial statements that include, in our opinion, all adjustments necessary for a fair presentation when read in conjunction with the Company's consolidated financial statements and notes thereto as of and for the years ended December 31, 2019 and 2018. 2019 (in thousands, except per share data) 4th Quarter 3rd Quarter 2nd Quarter 1st Quarter Interest and dividend income $ 18,784 $ 18,781 $ 18,256 $ 17,904 Interest expense 2,441 2,587 2,605 2,452 Net interest income 16,343 16,194 15,651 15,452 Provision for loan losses 378 378 529 526 Net interest income after provision for loan losses 15,965 15,816 15,122 14,926 Noninterest income 4,189 4,386 4,099 3,296 Operating expenses 11,888 11,885 12,404 11,158 Income tax expense 1,523 1,470 1,279 1,368 Net income $ 6,743 $ 6,847 $ 5,538 $ 5,696 Earnings per share Basic $ 0.92 $ 0.94 $ 0.79 $ 0.86 Diluted $ 0.92 $ 0.93 $ 0.78 $ 0.85 2018 (in thousands, except per share data) 4th Quarter 3rd Quarter 2nd Quarter 1st Quarter Interest and dividend income $ 17,680 $ 17,266 $ 16,369 $ 15,572 Interest expense 2,215 1,971 1,803 1,662 Net interest income 15,465 15,295 14,566 13,910 Provision for loan losses 526 526 526 411 Net interest income after provision for loan losses 14,939 14,769 14,040 13,499 Noninterest income 3,767 3,941 3,665 3,157 Operating expenses 10,986 11,181 10,947 10,307 Income tax expense 1,569 1,387 1,226 1,118 Net income $ 6,151 $ 6,142 $ 5,532 $ 5,231 Earnings per share Basic $ 0.92 $ 0.91 $ 0.82 $ 0.78 Diluted $ 0.91 $ 0.91 $ 0.82 $ 0.77

Parent Company Financial Stat_2

Parent Company Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
Schedule of condensed balance sheets	PARENT COMPANY BALANCE SHEETS (dollars in thousands, except share amounts) December 31, 2019 2018 ASSETS Cash and cash equivalents $ 26,264 $ 3,711 Interest-bearing deposits in subsidiary bank — 8,000 Investment in subsidiary bank 225,606 192,756 Investment in Red River Statutory Trust II — 93 Investment in Red River Statutory Trust III — 93 Investment in FBT Capital Trust I — 155 Other assets 28 236 Total Assets $ 251,898 $ 205,044 LIABILITIES Debentures payable to Red River Statutory Trust II $ — $ 3,093 Debentures payable to Red River Statutory Trust III — 3,093 Debentures payable to FBT Capital Trust I — 5,155 Total Liabilities — 11,341 STOCKHOLDERS' EQUITY Preferred stock, no par value: — — Common stock, no par value: 68,082 41,094 Additional paid-in capital 1,269 1,042 Retained earnings 182,571 159,073 Accumulated other comprehensive income (loss) (24 ) (7,506 ) Total Stockholders' Equity 251,898 193,703 Total Liabilities and Stockholders' Equity $ 251,898 $ 205,044
Schedule of condensed statements of income	PARENT COMPANY STATEMENTS OF INCOME (in thousands) Years ended December 31, 2019 2018 INCOME Interest and dividend income from subsidiaries $ 428 $ 495 Total income 428 495 EXPENSES Interest on junior subordinated debentures 385 558 Technology expenses 76 1 Legal and professional expenses 575 291 Advertising 3 — Other operating expenses 78 34 Total expenses 1,117 884 Income tax expense (benefit) (145 ) (74 ) Income (Loss) Before Equity in Undistributed Earnings of Subsidiaries (544 ) (315 ) Equity in undistributed earnings of subsidiaries 25,368 23,371 Net Income $ 24,824 $ 23,056
Schedule of condensed statements of cash flows	PARENT COMPANY STATEMENTS OF CASH FLOWS (in thousands) Years Ended December 31, 2019 2018 CASH FLOWS FROM OPERATING ACTIVITIES Net income $ 24,824 $ 23,056 Adjustments to reconcile net income to net cash Amortization of debt issuance costs 38 3 Undistributed earnings of subsidiaries (25,368 ) (23,371 ) Other operating activities, net 834 88 Net cash provided by (used in) operating activities 328 (224 ) CASH FLOWS FROM INVESTING ACTIVITIES (Increase) decrease interest-bearing deposits in subsidiary bank 8,000 9,000 Net cash provided by (used in) investing activities 8,000 9,000 CASH FLOWS FROM FINANCING ACTIVITIES Redemption of junior subordinated debentures (11,341 ) — Proceeds from exercise of stock options 80 53 Payment to repurchase common stock — (4,590 ) Proceeds from initial public offering, net 26,812 — Cash dividends (1,326 ) (1,009 ) Net cash provided by (used in) financing activities 14,225 (5,546 ) Net change in cash and cash equivalents 22,553 3,230 Cash and cash equivalents - beginning of year 3,711 481 Cash and cash equivalents - end of year $ 26,264 $ 3,711

Business and Summary of Signi_3

Business and Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2019USD ($)segmentbanking_centertrust	Dec. 31, 2018USD ($)	Jan. 01, 2019USD ($)
Variable Interest Entity [Line Items]
Number of banking centers | banking_center	25
Number of sponsored business trusts | trust	3
Number of trusts terminated | trust	3
Number of operating segments | segment	1
Number of reportable segments | segment	1
Loan origination fees	$ 24,000	$ 8,000
Foreclosed assets	1,100,000	646,000
Goodwill, impairment	0	0
Revenue recognized	175,000	175,000
Contract liability	845,000	1,000,000
Right-of-use assets	4,553,000
Lease liabilities	$ 4,603,000
Minimum
Variable Interest Entity [Line Items]
Estimated useful lives of the assets	P3Y
Maximum
Variable Interest Entity [Line Items]
Estimated useful lives of the assets	P39Y
Options
Variable Interest Entity [Line Items]
Vesting period	5 years
Restricted Stock
Variable Interest Entity [Line Items]
Vesting period	5 years
Year 1 | Options
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 1 | Restricted Stock
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 2 | Options
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 2 | Restricted Stock
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 3 | Options
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 3 | Restricted Stock
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 4 | Options
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 4 | Restricted Stock
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 5 | Options
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Year 5 | Restricted Stock
Variable Interest Entity [Line Items]
Vesting percentage	20.00%
Transferred at Point in Time
Variable Interest Entity [Line Items]
Revenue recognized	$ 12,500,000	12,000,000
Transferred over Time
Variable Interest Entity [Line Items]
Revenue recognized	$ 319,000	$ 317,000
ASU 2016-02
Variable Interest Entity [Line Items]
Right-of-use assets			$ 4,900,000
Lease liabilities			$ 4,900,000

Securities - Narrative (Details

Securities - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)security	Dec. 31, 2018USD ($)
Investments, Debt and Equity Securities [Abstract]
Purchases	$ 145,589	$ 20,728
Sales	58,859	5,282
Maturities, prepayments, and calls	67,144	52,692
Gains on investments	$ 9,500
Number of positions,12 months or longer | security	84
Number of positions, less than 12 months | security	92
Securities in a loss position as a percent of total AFS securities	0.44%
Securities pledged to secure public deposits	$ 89,800	$ 93,500

Securities - Schedule of Amorti

Securities - Schedule of Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 335,603	$ 317,379
Gross Unrealized Gains	1,453	116
Gross Unrealized Losses	(1,483)	(9,618)
Fair Value	335,573	307,877
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	236,572	221,799
Gross Unrealized Gains	299	11
Gross Unrealized Losses	(1,200)	(7,122)
Fair Value	235,671	214,688
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	91,929	70,416
Gross Unrealized Gains	1,108	94
Gross Unrealized Losses	(279)	(2,235)
Fair Value	92,758	68,275
U.S. agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,102	23,170
Gross Unrealized Gains	46	6
Gross Unrealized Losses	(4)	(261)
Fair Value	$ 7,144	22,915
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		1,994
Gross Unrealized Gains		5
Gross Unrealized Losses		0
Fair Value		$ 1,999

Securities - Schedule of AFS De

Securities - Schedule of AFS Debt Securities, By Maturity Date (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Amortized Cost
Within one year	$ 2,182
After one year but within five years	30,064
After five years but within ten years	69,467
After ten years	233,890
Amortized Cost	335,603	$ 317,379
Fair Value
Within one year	2,187
After one year but within five years	29,948
After five years but within ten years	69,903
After ten years	233,535
Fair Value	$ 335,573

Securities - Schedule of Securi

Securities - Schedule of Securities With Gross Unrealized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses, Less than twelve months	$ (650)	$ (164)
Fair Value, Less than twelve months	129,171	16,035
Gross Unrealized Losses, Twelve months or more	(833)	(9,454)
Fair Value, Twelve months or more	79,748	267,534
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses, Less than twelve months	(474)	(75)
Fair Value, Less than twelve months	109,416	8,845
Gross Unrealized Losses, Twelve months or more	(726)	(7,047)
Fair Value, Twelve months or more	70,425	200,532
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses, Less than twelve months	(172)	(48)
Fair Value, Less than twelve months	18,735	3,389
Gross Unrealized Losses, Twelve months or more	(107)	(2,187)
Fair Value, Twelve months or more	9,323	52,879
U.S. agency securities
Debt Securities, Available-for-sale [Line Items]
Gross Unrealized Losses, Less than twelve months	(4)	(41)
Fair Value, Less than twelve months	1,020	3,801
Gross Unrealized Losses, Twelve months or more	0	(220)
Fair Value, Twelve months or more	$ 0	$ 14,123

Securities - Schedule of Procee

Securities - Schedule of Proceeds from Sales of Securities AFS and Gross Gain (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Proceeds	$ 58,859	$ 5,282
Gross gain	309	57
Gross loss	$ (291)	$ (25)

Loans and Asset Quality - Total

Loans and Asset Quality - Total Loans Held for Investment by Category and Loans Held for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	$ 1,438,924	$ 1,328,438
Total loans HFS	5,089	2,904
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	267,940	275,881
Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	56,494	60,104
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	30,019	27,933
Commercial real estate | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	531,990	454,689
One-to-four family residential | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	420,020	406,963
Construction and development | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	$ 132,461	$ 102,868

Loans and Asset Quality - Sched

Loans and Asset Quality - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Balance - beginning of period	$ 40,311	$ 41,463
New loans/changes in relationships	33,354	31,688
Repayments/changes in relationships	(43,056)	(32,840)
Balance - end of period	$ 30,609	$ 40,311

Loans and Asset Quality - Sch_2

Loans and Asset Quality - Schedule of Allowance of Loan Losses By Category (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	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, 2019	Dec. 31, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				$ 12,524				$ 10,895	$ 12,524	$ 10,895
Provision for loan losses	$ 378	$ 378	$ 529	526	$ 526	$ 526	$ 526	411	1,810	1,990
Loans Charged-off									(1,219)	(737)
Recoveries									822	376
Ending Balance	13,937				12,524				13,937	12,524
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				4,604				2,836	4,604	2,836
Provision for loan losses									850	2,112
Loans Charged-off									(864)	(353)
Recoveries									585	9
Ending Balance	5,175				4,604				5,175	4,604
Tax-exempt
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				372				432	372	432
Provision for loan losses									(38)	(60)
Loans Charged-off									0	0
Recoveries									0	0
Ending Balance	334				372				334	372
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				370				406	370	406
Provision for loan losses									237	164
Loans Charged-off									(311)	(353)
Recoveries									144	153
Ending Balance	440				370				440	370
Commercial real estate | Real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				3,081				3,270	3,081	3,270
Provision for loan losses									373	(189)
Loans Charged-off									0	(27)
Recoveries									0	27
Ending Balance	3,454				3,081				3,454	3,081
One-to-four family residential | Real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				3,146				3,099	3,146	3,099
Provision for loan losses									216	(136)
Loans Charged-off									(44)	(4)
Recoveries									5	187
Ending Balance	3,323				3,146				3,323	3,146
Construction and development | Real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				$ 951				$ 852	951	852
Provision for loan losses									172	99
Loans Charged-off									0	0
Recoveries									88	0
Ending Balance	$ 1,211				$ 951				$ 1,211	$ 951

Loans and Asset Quality - Sch_3

Loans and Asset Quality - Schedule of Allowance for Loan Losses and the Related Recorded Investment in Loans by Category (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Allowance for loan losses:
Individually Evaluated for Impairment	$ 3,288	$ 2,617
Collectively Evaluated for Impairment	10,649	9,907
Total	13,937	12,524
Loans:
Individually Evaluated for Impairment	12,742	21,852
Collectively Evaluated for Impairment	1,426,182	1,306,586
Loans held for investment	1,438,924	1,328,438
Real estate | Commercial real estate
Allowance for loan losses:
Individually Evaluated for Impairment	260	206
Collectively Evaluated for Impairment	3,194	2,875
Total	3,454	3,081
Loans:
Individually Evaluated for Impairment	2,639	3,829
Collectively Evaluated for Impairment	529,351	450,860
Loans held for investment	531,990	454,689
Real estate | One-to-four family residential
Allowance for loan losses:
Individually Evaluated for Impairment	31	20
Collectively Evaluated for Impairment	3,292	3,126
Total	3,323	3,146
Loans:
Individually Evaluated for Impairment	1,193	2,348
Collectively Evaluated for Impairment	418,827	404,615
Loans held for investment	420,020	406,963
Real estate | Construction and development
Allowance for loan losses:
Individually Evaluated for Impairment	10	12
Collectively Evaluated for Impairment	1,201	939
Total	1,211	951
Loans:
Individually Evaluated for Impairment	38	55
Collectively Evaluated for Impairment	132,423	102,813
Loans held for investment	132,461	102,868
Commercial and industrial
Allowance for loan losses:
Individually Evaluated for Impairment	2,916	2,304
Collectively Evaluated for Impairment	2,259	2,300
Total	5,175	4,604
Loans:
Individually Evaluated for Impairment	8,797	15,516
Collectively Evaluated for Impairment	259,143	260,365
Loans held for investment	267,940	275,881
Tax-exempt
Allowance for loan losses:
Individually Evaluated for Impairment	0	0
Collectively Evaluated for Impairment	334	372
Total	334	372
Loans:
Individually Evaluated for Impairment	0	0
Collectively Evaluated for Impairment	56,494	60,104
Loans held for investment	56,494	60,104
Consumer
Allowance for loan losses:
Individually Evaluated for Impairment	71	75
Collectively Evaluated for Impairment	369	295
Total	440	370
Loans:
Individually Evaluated for Impairment	75	104
Collectively Evaluated for Impairment	29,944	27,829
Loans held for investment	30,019	27,933
Acquired with Deteriorated Credit Quality
Allowance for loan losses:
Total	0	0
Loans:
Loans held for investment	0	0
Acquired with Deteriorated Credit Quality | Real estate | Commercial real estate
Allowance for loan losses:
Total	0	0
Loans:
Loans held for investment	0	0
Acquired with Deteriorated Credit Quality | Real estate | One-to-four family residential
Allowance for loan losses:
Total	0	0
Loans:
Loans held for investment	0	0
Acquired with Deteriorated Credit Quality | Real estate | Construction and development
Allowance for loan losses:
Total	0	0
Loans:
Loans held for investment	0	0
Acquired with Deteriorated Credit Quality | Commercial and industrial
Allowance for loan losses:
Total	0	0
Loans:
Loans held for investment	0	0
Acquired with Deteriorated Credit Quality | Tax-exempt
Allowance for loan losses:
Total	0	0
Loans:
Loans held for investment	0	0
Acquired with Deteriorated Credit Quality | Consumer
Allowance for loan losses:
Total	0	0
Loans:
Loans held for investment	$ 0	$ 0

Loans and Asset Quality - Summa

Loans and Asset Quality - Summary of Current, Past Due, and Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Current	$ 1,433,258	$ 1,321,343
Nonaccrual	5,319	5,560
Loans held for investment	1,438,924	1,328,438
Real estate | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Current	530,712	452,477
Nonaccrual	1,278	1,362
Loans held for investment	531,990	454,689
Real estate | One-to-four family residential
Loans and Leases Receivable Disclosure [Line Items]
Current	419,229	405,961
Nonaccrual	607	424
Loans held for investment	420,020	406,963
Real estate | Construction and development
Loans and Leases Receivable Disclosure [Line Items]
Current	132,423	102,776
Nonaccrual	38	55
Loans held for investment	132,461	102,868
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Current	264,427	272,174
Nonaccrual	3,370	3,675
Loans held for investment	267,940	275,881
Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Current	56,494	60,104
Nonaccrual	0	0
Loans held for investment	56,494	60,104
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Current	29,973	27,851
Nonaccrual	26	44
Loans held for investment	30,019	27,933
30-89 Days Past Due
Loans and Leases Receivable Disclosure [Line Items]
Past Due	347	596
30-89 Days Past Due | Real estate | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	0
30-89 Days Past Due | Real estate | One-to-four family residential
Loans and Leases Receivable Disclosure [Line Items]
Past Due	184	512
30-89 Days Past Due | Real estate | Construction and development
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	36
30-89 Days Past Due | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Past Due	143	32
30-89 Days Past Due | Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	0
30-89 Days Past Due | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Past Due	20	16
90 Days or More Past Due
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	939
90 Days or More Past Due | Real estate | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	850
90 Days or More Past Due | Real estate | One-to-four family residential
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	66
90 Days or More Past Due | Real estate | Construction and development
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	1
90 Days or More Past Due | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	0
90 Days or More Past Due | Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Past Due	0	0
90 Days or More Past Due | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Past Due	$ 0	$ 22

Loans and Asset Quality - Sch_4

Loans and Asset Quality - Schedule of Loans Impaired (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Unpaid Principal Balance
With no related allowance recorded:	$ 4,407	$ 15,321
With allowance recorded:	10,150	8,047
Total impaired loans	14,557	23,368
Recorded Investment
With no related allowance recorded:	3,997	13,845
With allowance recorded:	8,745	8,007
Total impaired loans	12,742	21,852
Related Allowance	3,288	2,617
Average Recorded Investment
With no related allowance recorded:	7,611	14,153
With allowance recorded:	9,326	8,101
Total impaired loans	16,937	22,254
Interest Income Recognized
With no related allowance recorded:	121	566
With allowance recorded:	303	366
Total impaired loans	424	932
Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded:	1,805	11,003
With allowance recorded:	8,544	5,809
Recorded Investment
With no related allowance recorded:	1,474	9,707
With allowance recorded:	7,323	5,809
Related Allowance	2,916	2,304
Average Recorded Investment
With no related allowance recorded:	3,685	8,909
With allowance recorded:	7,746	5,813
Interest Income Recognized
With no related allowance recorded:	3	345
With allowance recorded:	299	210
Tax-exempt
Unpaid Principal Balance
With no related allowance recorded:	0	0
With allowance recorded:	0	0
Recorded Investment
With no related allowance recorded:	0	0
With allowance recorded:	0	0
Related Allowance	0	0
Average Recorded Investment
With no related allowance recorded:	0	0
With allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With allowance recorded:	0	0
Consumer
Unpaid Principal Balance
With no related allowance recorded:	2	12
With allowance recorded:	76	95
Recorded Investment
With no related allowance recorded:	2	12
With allowance recorded:	73	92
Related Allowance	71	75
Average Recorded Investment
With no related allowance recorded:	9	10
With allowance recorded:	76	35
Interest Income Recognized
With no related allowance recorded:	0	0
With allowance recorded:	4	1
Commercial real estate | Real estate
Unpaid Principal Balance
With no related allowance recorded:	1,560	2,376
With allowance recorded:	1,263	1,584
Recorded Investment
With no related allowance recorded:	1,537	2,255
With allowance recorded:	1,102	1,574
Related Allowance	260	206
Average Recorded Investment
With no related allowance recorded:	2,647	2,470
With allowance recorded:	1,076	1,715
Interest Income Recognized
With no related allowance recorded:	74	72
With allowance recorded:	0	132
One-to-four family residential | Real estate
Unpaid Principal Balance
With no related allowance recorded:	1,040	1,912
With allowance recorded:	216	507
Recorded Investment
With no related allowance recorded:	984	1,855
With allowance recorded:	209	493
Related Allowance	31	20
Average Recorded Investment
With no related allowance recorded:	1,194	2,026
With allowance recorded:	339	497
Interest Income Recognized
With no related allowance recorded:	44	149
With allowance recorded:	0	23
Construction and development | Real estate
Unpaid Principal Balance
With no related allowance recorded:	0	18
With allowance recorded:	51	52
Recorded Investment
With no related allowance recorded:	0	16
With allowance recorded:	38	39
Related Allowance	10	12
Average Recorded Investment
With no related allowance recorded:	76	738
With allowance recorded:	89	41
Interest Income Recognized
With no related allowance recorded:	0	0
With allowance recorded:	$ 0	$ 0

Loans and Asset Quality - Narra

Loans and Asset Quality - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
TDRs investments	$ 4,880,000	$ 5,112,000
Increase for allowance for loan losses	13,937,000	12,524,000	$ 10,895,000
Loans charge-off	(250,000)	(250,000)
TDRs that subsequently defaulted	0	0
Unfunded Loan Commitment
Loans and Leases Receivable Disclosure [Line Items]
Other commitments	257,000,000	231,500,000
Standby Letters of Credit
Loans and Leases Receivable Disclosure [Line Items]
Other commitments	11,100,000	11,600,000
TDRs
Loans and Leases Receivable Disclosure [Line Items]
Increase for allowance for loan losses	$ 3,000	$ 56,000

Loans and Asset Quality - Sum_2

Loans and Asset Quality - Summary of Current, Past Due, and Nonaccrual TDR Loans (Details) $ in Thousands	Dec. 31, 2019USD ($)loan	Dec. 31, 2018USD ($)loan	Dec. 31, 2019USD ($)loan	Dec. 31, 2018USD ($)loan
TDR
Current	$ 1,695	$ 1,572	$ 1,695	$ 1,572
Nonaccrual	3,185	3,540	3,185	3,540
Total TDRs	$ 4,880	$ 5,112	$ 4,880	$ 5,112
Number of TDR loans
Current | loan	12	10
Nonaccrual | loan	6	6
Total TDRs | loan	18	16	3	3
30-89 Days Past Due
TDR
Past Due	$ 0	$ 0	$ 0	$ 0
Number of TDR loans
Past Due | loan	0	0
90 Days or More Past Due
TDR
Past Due	$ 0	$ 0	0	0
Number of TDR loans
Past Due | loan	0	0
Commercial and industrial
TDR
Current	$ 36	$ 41	36	41
Nonaccrual	1,869	2,139	1,869	2,139
Total TDRs	1,905	2,180	$ 1,905	$ 2,180
Number of TDR loans
Total TDRs | loan			1	0
Commercial and industrial | 30-89 Days Past Due
TDR
Past Due	0	0	$ 0	$ 0
Commercial and industrial | 90 Days or More Past Due
TDR
Past Due	0	0	0	0
Tax-exempt
TDR
Current	0	0	0	0
Nonaccrual	0	0	0	0
Total TDRs	0	0	$ 0	$ 0
Number of TDR loans
Total TDRs | loan			0	0
Tax-exempt | 30-89 Days Past Due
TDR
Past Due	0	0	$ 0	$ 0
Tax-exempt | 90 Days or More Past Due
TDR
Past Due	0	0	0	0
Consumer
TDR
Current	46	56	46	56
Nonaccrual	0	0	0	0
Total TDRs	46	56	$ 46	$ 56
Number of TDR loans
Total TDRs | loan			0	1
Consumer | 30-89 Days Past Due
TDR
Past Due	0	0	$ 0	$ 0
Consumer | 90 Days or More Past Due
TDR
Past Due	0	0	0	0
Commercial real estate | Real estate
TDR
Current	1,361	1,267	1,361	1,267
Nonaccrual	1,278	1,362	1,278	1,362
Total TDRs	2,639	2,629	$ 2,639	$ 2,629
Number of TDR loans
Total TDRs | loan			1	1
Commercial real estate | Real estate | 30-89 Days Past Due
TDR
Past Due	0	0	$ 0	$ 0
Commercial real estate | Real estate | 90 Days or More Past Due
TDR
Past Due	0	0	0	0
One-to-four family residential | Real estate
TDR
Current	252	208	252	208
Nonaccrual	0	0	0	0
Total TDRs	252	208	$ 252	$ 208
Number of TDR loans
Total TDRs | loan			1	1
One-to-four family residential | Real estate | 30-89 Days Past Due
TDR
Past Due	0	0	$ 0	$ 0
One-to-four family residential | Real estate | 90 Days or More Past Due
TDR
Past Due	0	0	0	0
Construction and development | Real estate
TDR
Current	0	0	0	0
Nonaccrual	38	39	38	39
Total TDRs	38	39	$ 38	$ 39
Number of TDR loans
Total TDRs | loan			0	0
Construction and development | Real estate | 30-89 Days Past Due
TDR
Past Due	0	0	$ 0	$ 0
Construction and development | Real estate | 90 Days or More Past Due
TDR
Past Due	$ 0	$ 0	$ 0	$ 0

Loans and Asset Quality - Sum_3

Loans and Asset Quality - Summary of Loans Modified as TDRs That Occurred During Period (Details) $ in Thousands	Dec. 31, 2019loan	Dec. 31, 2018loan	Dec. 31, 2019USD ($)loan	Dec. 31, 2018USD ($)loan
Loans and Leases Receivable Disclosure [Line Items]
Loan Count | loan	18	16	3	3
Pre Modification			$ 230	$ 533
Post Modification			$ 232	$ 577
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Loan Count | loan			1	0
Pre Modification			$ 4	$ 0
Post Modification			$ 4	$ 0
Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Loan Count | loan			0	0
Pre Modification			$ 0	$ 0
Post Modification			$ 0	$ 0
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loan Count | loan			0	1
Pre Modification			$ 0	$ 58
Post Modification			$ 0	$ 58
Commercial real estate | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Loan Count | loan			1	1
Pre Modification			$ 166	$ 435
Post Modification			$ 166	$ 479
One-to-four family residential | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Loan Count | loan			1	1
Pre Modification			$ 60	$ 40
Post Modification			$ 62	$ 40
Construction and development | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Loan Count | loan			0	0
Pre Modification			$ 0	$ 0
Post Modification			$ 0	$ 0

Loans and Asset Quality - Sum_4

Loans and Asset Quality - Summary of Loans by Risk Rating (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	$ 1,438,924	$ 1,328,438
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	267,940	275,881
Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	56,494	60,104
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	30,019	27,933
Pass
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	1,397,747	1,284,018
Pass | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	247,382	251,987
Pass | Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	56,494	60,104
Pass | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	29,876	27,729
Special Mention
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	28,182	22,605
Special Mention | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	11,473	8,311
Special Mention | Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Special Mention | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	5	44
Substandard
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	12,995	21,815
Substandard | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	9,085	15,583
Substandard | Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Substandard | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	138	160
Doubtful
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Doubtful | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Doubtful | Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Doubtful | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Loss
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Loss | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Loss | Tax-exempt
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Loss | Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Commercial real estate | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	531,990	454,689
Commercial real estate | Pass | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	515,926	439,580
Commercial real estate | Special Mention | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	14,118	11,883
Commercial real estate | Substandard | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	1,946	3,226
Commercial real estate | Doubtful | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Commercial real estate | Loss | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
One-to-four family residential | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	420,020	406,963
One-to-four family residential | Pass | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	416,884	402,864
One-to-four family residential | Special Mention | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	2,021	1,992
One-to-four family residential | Substandard | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	1,115	2,107
One-to-four family residential | Doubtful | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
One-to-four family residential | Loss | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Construction and development | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	132,461	102,868
Construction and development | Pass | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	131,185	101,754
Construction and development | Special Mention | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	565	375
Construction and development | Substandard | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	711	739
Construction and development | Doubtful | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	0	0
Construction and development | Loss | Real estate
Loans and Leases Receivable Disclosure [Line Items]
Total loans HFI	$ 0	$ 0

Premises and Equipment, Net - S

Premises and Equipment, Net - Schedule of Components of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 62,830	$ 59,300
Less: Accumulated depreciation	(21,086)	(19,610)
Premises and equipment, net	41,744	39,690
Land
Property, Plant and Equipment [Line Items]
Total premises and equipment	14,495	12,087
Buildings
Property, Plant and Equipment [Line Items]
Total premises and equipment	28,478	23,809
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total premises and equipment	2,720	2,709
Furniture and equipment
Property, Plant and Equipment [Line Items]
Total premises and equipment	12,002	11,285
Vehicles
Property, Plant and Equipment [Line Items]
Total premises and equipment	341	339
Computer equipment
Property, Plant and Equipment [Line Items]
Total premises and equipment	3,185	2,919
Projects in process
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 1,609	$ 6,152

Premises and Equipment, Net - N

Premises and Equipment, Net - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 1,733	$ 1,659

Deposits - Schedule of Deposits

Deposits - Schedule of Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Banking and Thrift [Abstract]
Noninterest-bearing deposits	$ 584,915	$ 547,880
Interest-bearing deposits:
NOW accounts	331,374	304,545
Money market deposits	367,689	358,575
Savings accounts	103,984	104,355
Time deposits $100,000	110,636	119,637
Time deposits $100,000 to $250,000	131,957	128,637
Time deposits $250,000	90,565	81,954
Total interest-bearing deposits	1,136,205	1,097,703
Total Deposits	$ 1,721,120	$ 1,645,583

Deposits - Schedule of Maturiti

Deposits - Schedule of Maturities of Outstanding Certificates of Deposit (Details) $ in Thousands	Dec. 31, 2019USD ($)
Banking and Thrift [Abstract]
2020	$ 205,144
2021	62,292
2022	25,032
2023	14,633
2024	11,138
Thereafter	14,919
Total	$ 333,158

Deposits - Narrative (Details)

Deposits - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Banking and Thrift [Abstract]
Related party deposits	$ 30.7	$ 26.1

Other Borrowed Funds (Details)

Other Borrowed Funds (Details) - Line of Credit - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 639,100,000
Borrowing under the agreements	$ 0	$ 0

Junior Subordinated Debenture_2

Junior Subordinated Debentures - Narrative (Details)	Aug. 08, 2019USD ($)	Jun. 30, 2019USD ($)	Jun. 17, 2019USD ($)	Dec. 31, 2019USD ($)trust	Jun. 16, 2019USD ($)	Dec. 31, 2018USD ($)	Apr. 01, 2013USD ($)
Debt Instrument [Line Items]
Number of sponsored business trusts | trust				3
Junior Subordinated Debt
Debt Instrument [Line Items]
Debt amount				$ 6,200,000
Total junior subordinated debentures				0		$ 11,341,000
Junior Subordinated Debt | Trust preferred securities
Debt Instrument [Line Items]
Total junior subordinated debentures				0	$ 11,000,000	11,000,000
Junior Subordinated Debt | Common securities
Debt Instrument [Line Items]
Total junior subordinated debentures				0	$ 341,000	341,000
Junior Subordinated Debt | Fidelity Bancorp Acquisition
Debt Instrument [Line Items]
Debt amount							$ 5,200,000
Trust III | Junior Subordinated Debt
Debt Instrument [Line Items]
Total junior subordinated debentures				0		3,093,000
Redemption price, percent			100.00%
Repayment of principal amount			$ 3,100,000
Trust III | Junior Subordinated Debt | Trust preferred securities
Debt Instrument [Line Items]
Total junior subordinated debentures				0		3,000,000
Trust III | Junior Subordinated Debt | Common securities
Debt Instrument [Line Items]
Total junior subordinated debentures				0		93,000
Trust II | Junior Subordinated Debt
Debt Instrument [Line Items]
Total junior subordinated debentures				0		3,093,000
Redemption price, percent		100.00%
Repayment of principal amount		$ 3,100,000
Trust II | Junior Subordinated Debt | Trust preferred securities
Debt Instrument [Line Items]
Total junior subordinated debentures				0		3,000,000
Trust II | Junior Subordinated Debt | Common securities
Debt Instrument [Line Items]
Total junior subordinated debentures				0		93,000
FBT CT I | Junior Subordinated Debt
Debt Instrument [Line Items]
Total junior subordinated debentures				0		5,155,000
Redemption price, percent	100.00%
Repayment of principal amount	$ 5,200,000
FBT CT I | Junior Subordinated Debt | Trust preferred securities
Debt Instrument [Line Items]
Total junior subordinated debentures				0		5,000,000
FBT CT I | Junior Subordinated Debt | Common securities
Debt Instrument [Line Items]
Total junior subordinated debentures				$ 0		$ 155,000

Junior Subordinated Debenture_3

Junior Subordinated Debentures - Schedule of Junior Subordinated Debt (Details) - Junior Subordinated Debt - USD ($) $ in Thousands	Dec. 31, 2019	Aug. 08, 2019	Jun. 30, 2019	Jun. 17, 2019	Jun. 16, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total junior subordinated debentures	$ 0					$ 11,341
Trust preferred securities
Debt Instrument [Line Items]
Total junior subordinated debentures	0				$ 11,000	11,000
Common securities
Debt Instrument [Line Items]
Total junior subordinated debentures	0				$ 341	341
Trust II
Debt Instrument [Line Items]
Total junior subordinated debentures	0					$ 3,093
Interest rate			5.84%			5.65%
Trust II | Trust preferred securities
Debt Instrument [Line Items]
Total junior subordinated debentures	0					$ 3,000
Trust II | Common securities
Debt Instrument [Line Items]
Total junior subordinated debentures	0					93
Trust III
Debt Instrument [Line Items]
Total junior subordinated debentures	0					$ 3,093
Interest rate				4.58%		4.30%
Trust III | Trust preferred securities
Debt Instrument [Line Items]
Total junior subordinated debentures	0					$ 3,000
Trust III | Common securities
Debt Instrument [Line Items]
Total junior subordinated debentures	0					93
FBT CT I
Debt Instrument [Line Items]
Total junior subordinated debentures	0					$ 5,155
Interest rate		5.58%				5.34%
FBT CT I | Trust preferred securities
Debt Instrument [Line Items]
Total junior subordinated debentures	0					$ 5,000
FBT CT I | Common securities
Debt Instrument [Line Items]
Total junior subordinated debentures	$ 0					$ 155

Leases (Details)

Leases (Details)	12 Months Ended
	Dec. 31, 2019USD ($)contract	Dec. 31, 2018USD ($)
Lessee, Lease, Description [Line Items]
Right-of-use assets	$ 4,553,000
Lease liabilities	4,603,000
Lease expense	$ 549,000	$ 592,000
Minimum
Lessee, Lease, Description [Line Items]
Renewal term	3 years
Maximum
Lessee, Lease, Description [Line Items]
Renewal term	5 years
Land
Lessee, Lease, Description [Line Items]
Number of contracts | contract	6

Leases - Operating Lease Inform

Leases - Operating Lease Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Leases [Abstract]
Cash paid for amounts included in measurement of lease liabilities for operating leases	$ 500
Weighted average remaining operating lease term	10 years 3 months 18 days
Weighted average operating lease discount rate	3.40%

Leases - Lease Maturity (Detail

Leases - Lease Maturity (Details) $ in Thousands	Dec. 31, 2019USD ($)
Leases [Abstract]
2020	$ 520
2021	529
2022	537
2023	539
2024	539
Thereafter	2,815
Total lease payments	5,479
Less: Imputed interest	(876)
Present value of lease liabilities	$ 4,603

Income Tax Expense - Schedule o

Income Tax Expense - Schedule of Components of Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	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, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Current tax expense									$ 6,196	$ 5,752
Deferred tax expense (benefit)									(556)	(452)
Income tax expense	$ 1,523	$ 1,470	$ 1,279	$ 1,368	$ 1,569	$ 1,387	$ 1,226	$ 1,118	$ 5,640	$ 5,300

Income Tax Expense - Schedule_2

Income Tax Expense - Schedule of Components of Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	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, 2019	Dec. 31, 2018
Amount
Income before income tax expense									$ 30,464	$ 28,356
U.S. federal income tax expense									6,397	5,955
Nontaxable income									(803)	(765)
Nondeductible expenses									22	34
Other									24	76
Income tax expense	$ 1,523	$ 1,470	$ 1,279	$ 1,368	$ 1,569	$ 1,387	$ 1,226	$ 1,118	$ 5,640	$ 5,300
Percent
Income before income tax expense									100.00%	100.00%
U.S. federal income tax expense									21.00%	21.00%
Nontaxable income									(2.70%)	(2.70%)
Nondeductible expenses									0.10%	0.10%
Other									0.10%	0.30%
Income tax expense									18.50%	18.70%

Income Tax Expense - Schedule_3

Income Tax Expense - Schedule of Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Depreciation	$ (1,467)	$ (1,481)
FHLB stock dividends	(16)	(13)
Other	0	(18)
Gross deferred tax liability	(1,483)	(1,512)
Allowance for loan losses	2,920	2,572
Allowance for operational losses	36	47
Health insurance self fund	208	212
Deferred compensation	762	689
Unrealized loss on securities	6	1,996
Equity security valuation	14	45
Advance payment	187	224
Accrued bonus	139
Other	152	126
Gross deferred tax asset	4,424	5,911
Net deferred tax asset (liability)	$ 2,941	$ 4,399

Employee Benefits (Details)

Employee Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Discretionary employer contributions	$ 584	$ 527
Benefit plan related liability	$ 2,000	$ 1,800

Stock-Based Compensation Plan_2

Stock-Based Compensation Plans - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Oct. 25, 2018
2008 Equity Inventive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued	0
2018 Equity Inventive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued	5,975	0
Options granted in period (in shares)	0	0
Number of shares authorized (in shares)			200,000
Number of shares available for grant (in shares)	194,025
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
Number of options outstanding (in shares)	20,500	28,000
Options outstanding and exercisable, intrinsic value	$ 826	$ 725
Options, weighted average remaining term	1 year 3 months 25 days	1 year 9 months
Options, vested in period (in shares)	0	0
Options | Year 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Options | Year 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Options | Year 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Options | Year 4
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Options | Year 5
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Options | 2018 Equity Inventive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration term	10 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
Granted (in shares)	5,975	6,750
Fair value of stock award granted (in dollars per share)	$ 48.15	$ 37.49
Share-based board compensation earned	$ 227	$ 193
Unrecognized compensation cost	$ 641	$ 568
Expected weighted average period of compensation cost recognition	4 years 6 months	4 years 6 months
Restricted Stock | Year 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Restricted Stock | Year 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Restricted Stock | Year 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Restricted Stock | Year 4
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Restricted Stock | Year 5
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%

Stock-Based Compensation Plan_3

Stock-Based Compensation Plans - Schedule of Stock Option Plan (Details) - $ / shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Number of Shares
Outstanding, beginning (in shares)				28,000	33,500
Exercised (in shares)				(7,500)	(5,500)
Outstanding, ending (in shares)	20,500	28,000	33,500	20,500	28,000
Exercise Price Range
Exercise Price Range	$ 14.31	$ 12.32	$ 12.32		$ 12.32
Exercise Price Range	17.33	17.33	17.33		14.31
Weighted Average Price, Outstanding (in dollars per share)	$ 15.78	$ 14.85	$ 14.56	$ 15.78	14.85
Weighted Average Price, Exercised (in dollars per share)				$ 12.32	$ 13.04
Options
Exercise Price Range
Net shares issued (in shares)				7,200	5,010
Share surrendered in lieu of payment of exercise price (in shares)				300	490

Stock-Based Compensation Plan_4

Stock-Based Compensation Plans - Schedule of Nonvested Restricted Stock (Details) - Restricted Stock - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Nonvested Restricted Stock, Number of Shares
Nonvested, Beginning (in shares)	21,190	21,650
Granted (in shares)	5,975	6,750
Vested (in shares)	(6,560)	(7,210)
Nonvested, Ending (in shares)	20,605	21,190
Nonvested Restricted Stock, Weighted Average Grant Date Fair Value
Nonvested, Beginning (in dollars per share)	$ 32.10	$ 28.41
Granted (in dollars per share)	48.15	37.49
Vested (in dollars per share)	30.26	26.06
Nonvested, Ending (in dollars per share)	$ 37.34	$ 32.10

Stock-Based Compensation Plan_5

Stock-Based Compensation Plans - Schedule of Director Compensation Program (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based board compensation earned	$ 87	$ 96
Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based board compensation earned	$ 87	$ 96
Issuance of shares of common stock as board compensation:
Number of shares issued	2,368	2,452
Equity impact of shares issued	$ 96	$ 92

Self-Insurance (Details)

Self-Insurance (Details)	Dec. 31, 2019USD ($)
Insurance [Abstract]
Liability, deductible	$ 125,000
Maximum coverage by the group	$ 3,500,000

Off-Balance Sheet Contractual_2

Off-Balance Sheet Contractual Obligations (Details) $ in Thousands	Dec. 31, 2019USD ($)
Real estate
Unrecorded Unconditional Purchase Obligation [Line Items]
Purchase commitments	$ 2,500
SBIC Partnership
Unrecorded Unconditional Purchase Obligation [Line Items]
Investment commitments	$ 226

Fair Value - Assets Measured on

Fair Value - Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	$ 335,573	$ 307,877
Equity securities	3,936	3,821
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans HFS	0	0
Securities AFS	0	0
Equity securities	3,936	3,821
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans HFS	5,089	2,904
Securities AFS	335,573	307,877
Equity securities	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans HFS	0	0
Securities AFS	0	0
Equity securities	0	0
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans HFS	5,089	2,904
Equity securities	3,936	3,821
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans HFS	0	0
Equity securities	3,936	3,821
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans HFS	5,089	2,904
Equity securities	0	0
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans HFS	0	0
Equity securities	0	0
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	235,671	214,688
Mortgage-backed securities | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	235,671	214,688
Mortgage-backed securities | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Mortgage-backed securities | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	235,671	214,688
Mortgage-backed securities | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
U.S. agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	7,144	22,915
U.S. agency securities | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	7,144	22,915
U.S. agency securities | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
U.S. agency securities | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	7,144	22,915
U.S. agency securities | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	92,758	68,275
Municipal bonds | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	92,758	68,275
Municipal bonds | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Municipal bonds | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	92,758	68,275
Municipal bonds | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS		1,999
U.S. Treasury securities | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	1,999
U.S. Treasury securities | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
U.S. Treasury securities | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	1,999
U.S. Treasury securities | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	$ 0	$ 0

Fair Value - Assets Measured _2

Fair Value - Assets Measured on Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 9,454	$ 19,235
Foreclosed assets	1,128	646
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Foreclosed assets	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Foreclosed assets	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	9,454	19,235
Foreclosed assets	$ 1,128	$ 646

Fair Value - Unobservable Input

Fair Value - Unobservable Inputs Used for the Level 3 (Details) - Discounted appraisals - Collateral discounts and costs to sell	Dec. 31, 2019	Dec. 31, 2018
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	0.2580	0.1197
Foreclosed assets	0.0260	0.0621

Fair Value - Carrying Amounts a

Fair Value - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financial assets:
Securities AFS	$ 335,573	$ 307,877
Equity securities	3,936	3,821
Nonmarketable equity securities	1,350	1,299
Level 1
Financial assets:
Cash and due from banks	25,937	34,070
Interest-bearing deposits in other banks	107,355	117,836
Securities AFS	0	0
Equity securities	3,936	3,821
Nonmarketable equity securities	0	0
Loans HFS	0	0
Loans HFI, net of allowance	0	0
Accrued interest receivable	0	0
Financial liabilities:
Deposits	0	0
Junior subordinated debentures		0
Accrued interest payable	0	0
Level 2
Financial assets:
Cash and due from banks	0	0
Interest-bearing deposits in other banks	0	0
Securities AFS	335,573	307,877
Equity securities	0	0
Nonmarketable equity securities	1,350	1,299
Loans HFS	5,089	2,904
Loans HFI, net of allowance	0	0
Accrued interest receivable	0	0
Financial liabilities:
Deposits	1,721,286	1,641,136
Junior subordinated debentures		11,341
Accrued interest payable	2,222	1,757
Level 3
Financial assets:
Cash and due from banks	0	0
Interest-bearing deposits in other banks	0	0
Securities AFS	0	0
Equity securities	0	0
Nonmarketable equity securities	0	0
Loans HFS	0	0
Loans HFI, net of allowance	1,426,163	1,301,960
Accrued interest receivable	5,251	5,013
Financial liabilities:
Deposits	0	0
Junior subordinated debentures		0
Accrued interest payable	0	0
Carrying Amount
Financial assets:
Cash and due from banks	25,937	34,070
Interest-bearing deposits in other banks	107,355	117,836
Securities AFS	335,573	307,877
Equity securities	3,936	3,821
Nonmarketable equity securities	1,350	1,299
Loans HFS	5,089	2,904
Loans HFI, net of allowance	1,424,987	1,315,914
Accrued interest receivable	5,251	5,013
Financial liabilities:
Deposits	1,721,120	1,645,583
Junior subordinated debentures		11,341
Accrued interest payable	2,222	1,757
Fair Value
Financial assets:
Cash and due from banks	25,937	34,070
Interest-bearing deposits in other banks	107,355	117,836
Securities AFS	335,573	307,877
Equity securities	3,936	3,821
Nonmarketable equity securities	1,350	1,299
Loans HFS	5,089	2,904
Loans HFI, net of allowance	1,426,163	1,301,960
Accrued interest receivable	5,251	5,013
Financial liabilities:
Deposits	1,721,286	1,641,136
Junior subordinated debentures		11,341
Accrued interest payable	$ 2,222	$ 1,757

Regulatory Capital Requiremen_3

Regulatory Capital Requirements - Schedule of Regulatory Requirements (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Red River Bank
Total Risk-Based Capital
Actual Amount	$ 238,021	$ 211,240
Actual Ratio	16.23%	15.66%
Regulatory Requirements, Minimum , Amount	$ 117,325	$ 107,912
Regulatory Requirements, Minimum, Ratio	8.00%	8.00%
Regulatory Requirements, Minimum Plus CCB, Amount	$ 153,989	$ 133,204
Regulatory Requirements, Minimum Plus CCB, Ratio	10.50%	9.88%
Tier I Risk-Based Capital
Actual Amount	$ 224,084	$ 198,716
Actual Ratio	15.28%	14.73%
Regulatory Requirements, Minimum, Amount	$ 87,994	$ 80,934
Regulatory Requirements, Minimum, Ratio	6.00%	6.00%
Regulatory Requirements, Minimum Plus CCB, Amount	$ 124,658	$ 106,226
Regulatory Requirements, Minimum Plus CCB, Ratio	8.50%	7.88%
Common Equity Tier I Capital
Actual Amount	$ 224,084	$ 198,716
Actual Ratio	15.28%	14.73%
Regulatory Requirements, Minimum, Amount	$ 65,995	$ 60,701
Regulatory Requirements, Minimum, Ratio	4.50%	4.50%
Regulatory Requirements, Minimum Plus CCB, Amount	$ 102,660	$ 85,993
Regulatory Requirements, Minimum Plus CCB, Ratio	7.00%	6.38%
Tier I Leverage Capital
Actual Amount	$ 224,084	$ 198,716
Actual Ratio	11.47%	10.76%
Regulatory Requirements, Minimum, Amount	$ 78,114	$ 73,874
Regulatory Requirements, Minimum, Ratio	4.00%	4.00%
Regulatory Requirements, Minimum Plus CCB, Amount	$ 78,114	$ 73,874
Regulatory Requirements, Minimum Plus CCB, Ratio	4.00%	4.00%
Red River Bancshares, Inc.
Total Risk-Based Capital
Actual Amount	$ 264,313	$ 223,187
Actual Ratio	18.02%	16.55%
Tier I Risk-Based Capital
Actual Amount	$ 250,376	$ 210,663
Actual Ratio	17.07%	15.62%
Common Equity Tier I Capital
Actual Amount	$ 250,376	$ 199,663
Actual Ratio	17.07%	14.80%
Tier I Leverage Capital
Actual Amount	$ 250,376	$ 210,663
Actual Ratio	12.82%	11.40%

Equity Events (Details)

Equity Events (Details) $ / shares in Units, $ in Millions	May 07, 2019USD ($)$ / sharesshares	Feb. 28, 2019$ / shares	May 31, 2018$ / shares	Dec. 31, 2019$ / shares	Dec. 31, 2018$ / shares
Subsidiary, Sale of Stock [Line Items]
Common stockholders equity to total assets ratio, minimum				7.00%
Trust preferred securities to capital, maximum				25.00%
Cash dividends (in dollars per share) | $ / shares		$ 0.20	$ 0.15	$ 0.20	$ 0.15
Conversion ratio					2
IPO
Subsidiary, Sale of Stock [Line Items]
Aggregate net proceeds from stock offering | $	$ 26.8
Common Stock | IPO
Subsidiary, Sale of Stock [Line Items]
Offering price per share (in dollars per share) | $ / shares	$ 45
Shares sold in offering (in shares)	690,000
Common Stock | Initial Public Offering - Shares From Company
Subsidiary, Sale of Stock [Line Items]
Shares sold in offering (in shares)	663,320
Common Stock | Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Shares sold in offering (in shares)	90,000
Common Stock | Initial Public Offering - Shares From Existing Shareholders
Subsidiary, Sale of Stock [Line Items]
Shares sold in offering (in shares)	26,680

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	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, 2019	Dec. 31, 2018
Numerator:
Net income - basic									$ 24,824	$ 23,056
Net income - diluted									$ 24,824	$ 23,056
Denominator:
Weighted average shares outstanding - basic (in shares)									7,072,689	6,716,943
Weighted average shares outstanding - diluted (in shares)									7,115,514	6,756,102
Earnings per common share:
Basic (in dollars per share)	$ 0.92	$ 0.94	$ 0.79	$ 0.86	$ 0.92	$ 0.91	$ 0.82	$ 0.78	$ 3.51	$ 3.43
Diluted (in dollars per share)	$ 0.92	$ 0.93	$ 0.78	$ 0.85	$ 0.91	$ 0.91	$ 0.82	$ 0.77	$ 3.49	$ 3.41
Plus: Effect of Directors Stock Compensation Program
Denominator:
Plus: Effect of dilutive securities (in shares)									1,554	2,368
Plus: Effect of stock options and restricted stock
Denominator:
Plus: Effect of dilutive securities (in shares)									41,271	36,791

Quarterly Results of Operatio_3

Quarterly Results of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	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, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Interest and dividend income	$ 18,784	$ 18,781	$ 18,256	$ 17,904	$ 17,680	$ 17,266	$ 16,369	$ 15,572	$ 73,725	$ 66,886
Interest expense	2,441	2,587	2,605	2,452	2,215	1,971	1,803	1,662	10,086	7,649
Net Interest Income	16,343	16,194	15,651	15,452	15,465	15,295	14,566	13,910	63,639	59,237
Provision for loan losses	378	378	529	526	526	526	526	411	1,810	1,990
Net Interest Income After Provision for Loan Losses	15,965	15,816	15,122	14,926	14,939	14,769	14,040	13,499	61,829	57,247
Noninterest income	4,189	4,386	4,099	3,296	3,767	3,941	3,665	3,157	15,970	14,531
Operating expenses	11,888	11,885	12,404	11,158	10,986	11,181	10,947	10,307	47,335	43,422
Income tax expense	1,523	1,470	1,279	1,368	1,569	1,387	1,226	1,118	5,640	5,300
Net Income	$ 6,743	$ 6,847	$ 5,538	$ 5,696	$ 6,151	$ 6,142	$ 5,532	$ 5,231	$ 24,824	$ 23,056
Earnings per share
Basic (in dollars per share)	$ 0.92	$ 0.94	$ 0.79	$ 0.86	$ 0.92	$ 0.91	$ 0.82	$ 0.78	$ 3.51	$ 3.43
Diluted (in dollars per share)	$ 0.92	$ 0.93	$ 0.78	$ 0.85	$ 0.91	$ 0.91	$ 0.82	$ 0.77	$ 3.49	$ 3.41

Parent Company Financial Stat_3

Parent Company Financial Statements - Schedule of Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	[1]
ASSETS
Cash and cash equivalents	$ 133,292	$ 151,906
Interest-bearing deposits in subsidiary bank	107,355	117,836
Other assets	9,059	9,317
Total Assets	1,988,225	1,860,588
LIABILITIES
Junior subordinated debentures	0	11,341
Total Liabilities	1,736,327	1,666,885
STOCKHOLDERS' EQUITY
Preferred stock, no par value: Authorized - 1,000,000 shares; None Issued and Outstanding	0	0
Common stock, no par value: Authorized - 30,000,000 shares; Issued and Outstanding - 7,306,221 and 6,627,358 shares	68,082	41,094
Additional paid-in capital	1,269	1,042
Retained earnings	182,571	159,073
Accumulated other comprehensive income (loss)	(24)	(7,506)
Total Stockholders' Equity	251,898	193,703	$ 178,103
Total Liabilities and Stockholders' Equity	1,988,225	1,860,588
Parent Company
ASSETS
Cash and cash equivalents	26,264	3,711
Interest-bearing deposits in subsidiary bank	0	8,000
Other assets	28	236
Total Assets	251,898	205,044
LIABILITIES
Total Liabilities	0	11,341
STOCKHOLDERS' EQUITY
Preferred stock, no par value: Authorized - 1,000,000 shares; None Issued and Outstanding	0	0
Common stock, no par value: Authorized - 30,000,000 shares; Issued and Outstanding - 7,306,221 and 6,627,358 shares	68,082	41,094
Additional paid-in capital	1,269	1,042
Retained earnings	182,571	159,073
Accumulated other comprehensive income (loss)	(24)	(7,506)
Total Stockholders' Equity	251,898	193,703
Total Liabilities and Stockholders' Equity	251,898	205,044
Parent Company | Subsidiary Bank
ASSETS
Investments	225,606	192,756
Parent Company | Red River Statutory Trust II
ASSETS
Investments	0	93
LIABILITIES
Junior subordinated debentures	0	3,093
Parent Company | Red River Statutory Trust III
ASSETS
Investments	0	93
LIABILITIES
Junior subordinated debentures	0	3,093
Parent Company | FBT Capital Trust I
ASSETS
Investments	0	155
LIABILITIES
Junior subordinated debentures	$ 0	$ 5,155
[1]	Adjusted to give effect to the 2018 2 -for-1 stock split

Parent Company Financial Stat_4

Parent Company Financial Statements - Schedule of Condensed Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	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, 2019	Dec. 31, 2018
INCOME
Interest and dividend income from subsidiaries	$ 18,784	$ 18,781	$ 18,256	$ 17,904	$ 17,680	$ 17,266	$ 16,369	$ 15,572	$ 73,725	$ 66,886
Net Interest Income	16,343	16,194	15,651	15,452	15,465	15,295	14,566	13,910	63,639	59,237
EXPENSES
Interest on junior subordinated debentures									385	558
Technology expenses									2,293	2,070
Legal and professional expenses									1,541	1,422
Advertising									1,025	762
Other operating expenses									3,633	3,240
Income tax expense (benefit)	1,523	1,470	1,279	1,368	1,569	1,387	1,226	1,118	5,640	5,300
Net Income	$ 6,743	$ 6,847	$ 5,538	$ 5,696	$ 6,151	$ 6,142	$ 5,532	$ 5,231	24,824	23,056
Parent Company
INCOME
Interest and dividend income from subsidiaries									428	495
Net Interest Income									428	495
EXPENSES
Interest on junior subordinated debentures									385	558
Technology expenses									76	1
Legal and professional expenses									575	291
Advertising									3	0
Other operating expenses									78	34
Total Operating Expenses									1,117	884
Income tax expense (benefit)									(145)	(74)
Income (Loss) Before Equity in Undistributed Earnings of Subsidiaries									(544)	(315)
Equity in undistributed earnings of subsidiaries									25,368	23,371
Net Income									$ 24,824	$ 23,056

Parent Company Financial Stat_5

Parent Company Financial Statements - Schedule of Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	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, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 6,743	$ 6,847	$ 5,538	$ 5,696	$ 6,151	$ 6,142	$ 5,532	$ 5,231	$ 24,824	$ 23,056
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Other operating activities, net									(1,143)	(359)
Net cash provided by (used in) operating activities									26,443	26,015
CASH FLOWS FROM INVESTING ACTIVITIES
Net cash used in investing activities									(134,819)	(47,646)
CASH FLOWS FROM FINANCING ACTIVITIES
Redemption of junior subordinated debentures									(11,341)	0
Proceeds from exercise of stock options									80	53
Payment to repurchase common stock									0	(4,590)
Proceeds from initial public offering, net									26,812	0
Cash dividends									(1,326)	(1,009)
Net cash provided by financing activities									89,762	113,870
Net change in cash and cash equivalents									(18,614)	92,239
Cash and cash equivalents - beginning of year				151,906				59,667	151,906	59,667
Cash and cash equivalents - end of year	133,292				151,906				133,292	151,906
Parent Company
CASH FLOWS FROM OPERATING ACTIVITIES
Net income									24,824	23,056
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Amortization of debt issuance costs									38	3
Undistributed earnings of subsidiaries									25,368	23,371
Other operating activities, net									834	88
Net cash provided by (used in) operating activities									328	(224)
CASH FLOWS FROM INVESTING ACTIVITIES
(Increase) decrease interest-bearing deposits in subsidiary bank									8,000	9,000
Net cash used in investing activities									8,000	9,000
CASH FLOWS FROM FINANCING ACTIVITIES
Redemption of junior subordinated debentures									(11,341)	0
Proceeds from exercise of stock options									80	53
Payment to repurchase common stock									0	(4,590)
Proceeds from initial public offering, net									26,812	0
Cash dividends									(1,326)	(1,009)
Net cash provided by financing activities									14,225	(5,546)
Net change in cash and cash equivalents									22,553	3,230
Cash and cash equivalents - beginning of year				$ 3,711				$ 481	3,711	481
Cash and cash equivalents - end of year	$ 26,264				$ 3,711				$ 26,264	$ 3,711

Uncategorized Items - rrbi20191

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 0
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(74,000)
AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 74,000