California Bancorp (CALB) 10-Q 9 Nov 21 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Nov. 01, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Period End Date	Sep. 30, 2021
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Document Quarterly Report	true
Entity Registrant Name	California BanCorp
Entity Central Index Key	0001752036
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding		8,250,899
Title of 12(b) Security	Common Stock
Trading Symbol	CALB
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	CA
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Address, Country	CA
Entity File Number	001-39242
Entity Tax Identification Number	82-1751097
Entity Address, Address Line One	1300 Clay Street
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Oakland
Entity Address, Postal Zip Code	94612
City Area Code	510
Local Phone Number	457-3737

Consolidated Statements of Fina

Consolidated Statements of Financial Condition (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
ASSETS:
Cash and due from banks	$ 22,424	$ 22,485
Federal funds sold	578,626	396,032
Total cash and cash equivalents	601,050	418,517
Investment securities, available for sale	82,108	55,093
Loans, net of allowance for losses of $13,571 and $14,111 at September 30, 2021 and December 31, 2020, respectively	1,289,161	1,355,482
Premises and equipment, net	4,227	5,778
Bank owned life insurance (BOLI)	24,247	23,718
Goodwill and other intangible assets	7,524	7,554
Accrued interest receivable and other assets	40,762	39,637
Total assets	2,049,079	1,905,779
Deposits
Non-interest bearing	790,646	673,100
Interest bearing	951,408	859,106
Total deposits	1,742,054	1,532,206
Other borrowings	79,536	189,043
Junior subordinated debt securities	59,009	24,994
Accrued interest payable and other liabilities	21,241	23,126
Total liabilities	1,901,840	1,769,369
Commitments and Contingencies (Note 5)
Shareholders' equity
Common stock, no par value; 40,000,000 shares authorized; 8,250,109 and 8,171,734 issued and outstanding at September 30, 2021 and December 31, 2020, respectively	109,009	107,948
Retained earnings	38,008	27,821
Accumulated other comprehensive income, net of taxes	222	641
Total shareholders' equity	147,239	136,410
Total liabilities and shareholders' equity	$ 2,049,079	$ 1,905,779

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for losses	$ 13,571	$ 14,111
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	8,250,109	8,171,734
Common stock, shares outstanding	8,250,109	8,171,734

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest income
Loans	$ 14,870	$ 12,849	$ 44,157	$ 37,096
Federal funds sold	199	117	371	554
Investment securities	470	222	1,222	621
Total interest income	15,539	13,188	45,750	38,271
Interest expense
Deposits	1,152	1,467	3,481	4,981
Borrowings and subordinated debt	546	533	1,506	1,136
Total interest expense	1,698	2,000	4,987	6,117
Net interest income	13,841	11,188	40,763	32,154
Provision for credit losses	300	850	(500)	4,180
Net interest income after provision for credit losses	13,541	10,338	41,263	27,974
Non-interest income
Service charges and other fees	905	779	2,184	2,287
Other	397	249	995	809
Total non-interest income	1,302	1,028	3,179	3,096
Non-interest expense
Salaries and benefits	6,920	6,452	19,661	15,051
Premises and equipment	1,372	1,359	3,778	3,630
Professional fees	334	634	1,450	3,013
Data processing	540	734	1,604	1,796
Other	1,347	1,366	3,935	3,903
Total non-interest expense	10,513	10,545	30,428	27,393
Income before provision for income taxes	4,330	821	14,014	3,677
Provision for income taxes	1,114	326	3,827	1,159
Net income	$ 3,216	$ 495	$ 10,187	$ 2,518
Earnings per common share
Basic	$ 0.39	$ 0.06	$ 1.24	$ 0.31
Diluted	$ 0.39	$ 0.06	$ 1.23	$ 0.31
Average common shares outstanding	8,244,154	8,141,807	8,211,907	8,124,387
Average common and equivalent shares outstanding	8,310,799	8,169,334	8,283,683	8,159,521

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Income	$ 3,216	$ 495	$ 10,187	$ 2,518
Other comprehensive income
Unrealized (losses) gains on securities available for sale	(440)	(143)	(595)	602
Reclassification adjustment for realized loss on securities available for sale		0		70
Tax effect	130	43	176	(200)
Total other comprehensive (loss) income	(310)	(100)	(419)	472
Total comprehensive income	$ 2,906	$ 395	$ 9,768	$ 2,990

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance (in shares) at Dec. 31, 2019		8,092,966
Balance at Dec. 31, 2019	$ 130,256	$ 106,427	$ 23,518	$ 311
Stock awards issued and related compensation expense, shares		25,215
Stock awards issued and related compensation expense	413	$ 413
Shares withheld to pay taxes on stock based compensation , shares		(7,550)
Shares withheld to pay taxes on stock based compensation	(133)	$ (133)
Stock options exercised , shares		11,217
Stock options exercised	83	$ 83
Net income	473		473
Other comprehensive income (loss)	101			101
Balance (in shares) at Mar. 31, 2020		8,121,848
Balance at Mar. 31, 2020	131,193	$ 106,790	23,991	412
Balance (in shares) at Dec. 31, 2019		8,092,966
Balance at Dec. 31, 2019	130,256	$ 106,427	23,518	311
Net income	2,518
Other comprehensive income (loss)	472
Balance (in shares) at Sep. 30, 2020		8,149,678
Balance at Sep. 30, 2020	134,595	$ 107,776	26,036	783
Balance (in shares) at Mar. 31, 2020		8,121,848
Balance at Mar. 31, 2020	131,193	$ 106,790	23,991	412
Stock awards issued and related compensation expense, shares		1,428
Stock awards issued and related compensation expense	314	$ 314
Stock options exercised , shares		10,181
Stock options exercised	137	$ 137
Net income	1,550		1,550
Other comprehensive income (loss)	471			471
Balance (in shares) at Jun. 30, 2020		8,133,457
Balance at Jun. 30, 2020	133,665	$ 107,241	25,541	883
Stock awards issued and related compensation expense, shares		12,483
Stock awards issued and related compensation expense	525	$ 525
Stock options exercised , shares		3,738
Stock options exercised	10	$ 10
Net income	495		495
Other comprehensive income (loss)	(100)			(100)
Balance (in shares) at Sep. 30, 2020		8,149,678
Balance at Sep. 30, 2020	134,595	$ 107,776	26,036	783
Balance (in shares) at Dec. 31, 2020		8,171,734
Balance at Dec. 31, 2020	136,410	$ 107,948	27,821	641
Stock awards issued and related compensation expense, shares		3,369
Stock awards issued and related compensation expense	383	$ 383
Stock options exercised , shares		14,495
Stock options exercised	99	$ 99
Net income	2,809		2,809
Other comprehensive income (loss)	(523)			(523)
Balance (in shares) at Mar. 31, 2021		8,189,598
Balance at Mar. 31, 2021	139,178	$ 108,430	30,630	118
Balance (in shares) at Dec. 31, 2020		8,171,734
Balance at Dec. 31, 2020	136,410	$ 107,948	27,821	641
Net income	10,187
Other comprehensive income (loss)	(419)
Balance (in shares) at Sep. 30, 2021		8,250,109
Balance at Sep. 30, 2021	147,239	$ 109,009	38,008	222
Balance (in shares) at Mar. 31, 2021		8,189,598
Balance at Mar. 31, 2021	139,178	$ 108,430	30,630	118
Stock awards issued and related compensation expense, shares		28,562
Stock awards issued and related compensation expense	234	$ 234
Shares withheld to pay taxes on stock based compensation , shares		(2,740)
Shares withheld to pay taxes on stock based compensation	(150)	$ (150)
Stock options exercised , shares		21,770
Stock options exercised	48	$ 48
Shares withheld to pay exercise price on stock options, shares		(8,074)
Shares withheld to pay exercise price on stock options	(145)	$ (145)
Net income	4,162		4,162
Other comprehensive income (loss)	414			414
Balance (in shares) at Jun. 30, 2021		8,229,116
Balance at Jun. 30, 2021	143,741	$ 108,417	34,792	532
Stock awards issued and related compensation expense, shares		30,053
Stock awards issued and related compensation expense	723	$ 723
Shares withheld to pay taxes on stock based compensation , shares		(10,056)
Shares withheld to pay taxes on stock based compensation	(82)	$ (82)
Stock options exercised , shares		3,750
Stock options exercised	0	$ 0
Shares withheld to pay exercise price on stock options, shares		(2,754)
Shares withheld to pay exercise price on stock options	(49)	$ (49)
Net income	3,216		3,216
Other comprehensive income (loss)	(310)			(310)
Balance (in shares) at Sep. 30, 2021		8,250,109
Balance at Sep. 30, 2021	$ 147,239	$ 109,009	$ 38,008	$ 222

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 10,187	$ 2,518
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(500)	4,180
Provision for deferred taxes	(1,851)	127
Depreciation	1,166	996
Deferred loan (costs) fees, net	(152)	3,823
Accretion on discount of purchased loans, net	(85)	(216)
Stock based compensation, net	1,108	1,119
Increase in cash surrender value of life insurance	(487)	(440)
Discount on retained portion of sold loans, net	(26)	(176)
Loss on sale of investment securities, net		70
Increase in accrued interest receivable and other assets	1,050	(2,167)
Decrease in accrued interest payable and other liabilities	321	2,929
Net cash from operating activities	10,731	12,763
Cash flows from investing activities:
Purchase of investment securities	(36,548)	(35,403)
Proceeds from sales of investment securities		7,729
Proceeds from principal payments on investment securities	8,848	5,425
Purchase of loans	(20,008)	(24,289)
Net decrease (increase) in loans	87,092	(382,916)
Purchase of low income tax credit investments	(565)	(941)
Purchase of Federal Home Loan Bank stock	(1,344)	(363)
Purchase of premises and equipment	(165)	(3,261)
Purchase of bank-owned life insurance policies	(42)	(821)
Net cash used in investing activities	37,268	(434,840)
Cash flows from financing activities:
Net increase in customer deposits	209,848	448,996
Paydown of long term borrowing, net	(109,507)
Proceeds from short term and overnight borrowings		342,703
Proceeds from issuance of subordinated debt, net	34,240	19,700
Proceeds from exercised stock options, net	(47)	230
Net cash provided by financing activities	134,534	811,629
Increase in cash and cash equivalents	182,533	389,552
Cash and cash equivalents, beginning of period	418,517	114,342
Cash and cash equivalents, end of period	601,050	503,894
Supplemental disclosure of cash flow information:
Recording of right to use assets and operating lease liabilities		2,903
Cash paid during the year for:
Interest	5,490	10,097
Income taxes	$ 4,684	$ 164

Nature of Operations

Nature of Operations	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	1. NATURE OF OPERATIONS Organization California BanCorp (the “Company”, or ‘we”), a California corporation headquartered in Oakland, California, is the bank holding company for its wholly-owned subsidiary California Bank of Commerce (the “Bank”). The Bank has 2 full service branches in California located in Contra Costa County and Santa Clara County and 4 loan production offices in California located in Alameda County, Contra Costa County, Sacramento County, and Santa Clara County. Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q 10-K The results of operations for the three and nine months ended September 30, 2021 are not necessarily indicative of the results of operations that may be expected for any other interim period or for the year ending December 31, 2021. The Company’s accounting and reporting policies conform to GAAP and to general practices within the banking industry. Subsequent Events Management has reviewed all events through the date the unaudited consolidated financial statements were filed with the SEC. Use of Estimates Management is required 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 unaudited consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates and assumptions affect the amounts reported in the unaudited consolidated financial statements and the disclosures provided, and actual results could differ. The estimates utilized to determine the appropriate allowance for loan losses at September 30, 2021 may be materially different from actual results due to the COVID-19 COVID-19 Reclassifications Certain prior balances in the unaudited consolidated financial statements may have been reclassified to conform to current year presentation. These reclassifications had no effect on prior year net income or shareholders’ equity. Earnings Per Share (“EPS”) Basic earnings per common share represents the amount of earnings for the period available to each share of common stock outstanding during the reporting period. Basic EPS is computed based upon net income divided by the weighted average number of common shares outstanding during the period. In determining the weighted average number of shares outstanding, vested restricted stock units are included. Diluted EPS represents the amount of earnings for the period available to each share of common stock outstanding including common stock that would have been outstanding assuming the issuance of common shares for all dilutive potential common shares outstanding during each reporting period. Diluted EPS is computed based upon net income divided by the weighted average number of common shares outstanding during each period, adjusted for the effect of dilutive potential common shares, such as restricted stock awards and units, calculated using the treasury stock method. Three months ended Nine months ended September 30, September 30, (Dollars in thousands, except per share data) 2021 2020 2021 2020 Net income available to common shareholders $ 3,216 $ 495 $ 10,187 $ 2,518 Weighted average basic common shares outstanding 8,244,154 8,141,807 8,211,907 8,124,387 Add: dilutive potential common shares 66,645 27,527 71,776 35,134 Weighted average diluted common shares outstanding 8,310,799 8,169,334 8,283,683 8,159,521 Basic earnings per share $ 0.39 $ 0.06 $ 1.24 $ 0.31 Diluted earnings per share $ 0.39 $ 0.06 $ 1.23 $ 0.31 New Financial Accounting Standards In December 2019, the Financial Accounting Standards Board (“FASB”) issued “Simplifying the Accounting for Income Taxes (Topic 740)” (“ASU 2019-12”) 2019-12 In June 2016, the FASB issued ASU 2016-13, held-to off-balance

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Investment Securities	2. INVESTMENT SECURITIES The following table summarizes the amortized cost and estimated fair value of securities available for sale at September 30, 2021 and December 31, 2020. Gross Gross Estimated Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value At September 30, 2021: Mortgage backed securities $ 43,324 $ 416 $ (360 ) $ 43,380 Government agencies 2,117 35 — 2,152 Corporate bonds 36,352 589 (365 ) 36,576 Total available for sale securities $ 81,793 $ 1,040 $ (725 ) $ 82,108 At December 31, 2020: Mortgage backed securities $ 27,541 $ 669 $ (17 ) $ 28,193 Government agencies 2,418 — (6 ) 2,412 Corporate bonds 24,224 434 (170 ) 24,488 Total available for sale securities $ 54,183 $ 1,103 $ (193 ) $ 55,093 Net unrealized gains on available for sale investment securities totaling $315,000 and $910,000 were recorded, net of deferred tax assets, as accumulated other comprehensive income within shareholders’ equity at September 30, 2021 and December 31, 2020, respectively. The Company purchased 9 securities for $36.5 million and did not sell available for sale investment securities during the nine months ended September 30, 2021. The Company purchased 8 securities for $35.4 million and sold 6 securities for total proceeds of $7.7 million during the nine months ended September 30, 2020. The following table summarizes securities with unrealized losses at September 30, 2021 and December 31, 2020 aggregated by major security type and length of time in a continuous unrealized loss position. Less Than 12 Months More Than 12 Months Total Unrealized Unrealized Unrealized (Dollars in thousands) Fair Value Losses Fair Value Losses Fair Value Losses At September 30, 2021: Mortgage backed securities $ 28,621 $ (360 ) $ — $ — $ 28,621 $ (360 ) Government agencies — — — — — — Corporate bonds 11,750 (77 ) 4,712 (288 ) 16,462 (365 ) Total available for sale securities $ 40,371 $ (437 ) $ 4,712 $ (288 ) $ 45,083 $ (725 ) At December 31, 2020: Mortgage backed securities $ 4,481 $ (17 ) $ — $ — $ 4,481 $ (17 ) Government agencies 2,412 (6 ) — — 2,412 (6 ) Corporate bonds 7,830 (170 ) — — 7,830 (170 ) Total available for sale securities $ 14,723 $ (193 ) $ — $ — $ 14,723 $ (193 ) At September 30, 2021 the Company’s investment security portfolio consisted of 38 securities, eleven of which (mortgage backed securities and corporate securities with investment grade ratings) were in an unrealized loss position at quarter end. At December 31, 2020 the Company’s investment security portfolio consisted of 29 securities, five of which were in an unrealized loss position at year end. Management believes that changes in the market value since purchase are primarily attributable to changes in interest rates and relative illiquidity. Because the Company does not intend to sell and is unlikely to be required to sell until a recovery of fair value, which may be at maturity, the Company did not consider those investments to be other-than-temporarily impaired at September 30, 2021 and December 31, 2020, respectively. The following table summarizes the scheduled maturities of available for sale investment securities as of September 30, 2021. September 30, 2021 Amortized Fair (Dollars in thousands) Cost Value Available for sale securities: Less than one year $ — $ — One to five years 22,145 22,317 Five to ten years 14,846 15,061 Beyond ten years 5,426 5,209 Securities not due at a single maturity date 39,376 39,521 Total available for sale securities $ 81,793 $ 82,108 The amortized cost and fair value of debt securities are shown by contractual maturity. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. As such, mortgage backed securities and government agencies are not included in the maturity categories above and instead are shown separately as securities not due at a single maturity date.

Loans and Allowance For Credit

Loans and Allowance For Credit Losses	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Loans and Allowance For Credit Losses	3. LOANS AND ALLOWANCE FOR CREDIT LOSSES Outstanding loans as of September 30, 2021 and December 31, 2020 are summarized below. Certain loans have been pledged to secure borrowing arrangements (see Note 4). Additionally, SBA loans include loans funded under the Paycheck Protection Program under the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), which was enacted as a result of the COVID-19 September 30, December 31, (Dollars in thousands) 2021 2020 Commercial and industrial $ 428,169 $ 414,548 Real estate - other 664,202 550,690 Real estate - construction and land 41,312 37,193 SBA 107,096 317,564 Other 61,193 49,075 Total loans, gross 1,301,972 1,369,070 Deferred loan origination costs, net 760 523 Allowance for credit losses (13,571 ) (14,111 ) Total loans, net $ 1,289,161 $ 1,355,482 The following table reflects the loan portfolio allocated by management’s internal risk ratings at September 30, 2021 and December 31, 2020. Commercial Real Estate and Real Estate Construction (Dollars in thousands) Industrial Other and Land SBA Other Total As of September 30, 2021 Grade: Pass $ 413,292 $ 653,813 $ 37,220 $ 105,164 $ 61,193 $ 1,270,682 Special Mention 10,933 4,661 1,288 1,000 — 17,882 Substandard 3,944 5,728 2,804 932 — 13,408 Total $ 428,169 $ 664,202 $ 41,312 $ 107,096 $ 61,193 $ 1,301,972 As of December 31, 2020 Grade: Pass $ 401,629 $ 540,153 $ 34,543 $ 315,277 $ 49,075 $ 1,340,677 Special Mention 9,013 2,911 872 859 — 13,655 Substandard 3,906 7,626 1,778 1,428 — 14,738 Total $ 414,548 $ 550,690 $ 37,193 $ 317,564 $ 49,075 $ 1,369,070 The following table reflects an aging analysis of the loan portfolio by the time past due at September 30, 2021 and December 31, 2020. (Dollars in thousands) 30 Days 60 Days 90+ Days Non-Accrual Current Total As of September 30, 2021 Commercial and industrial $ 134 $ — $ — $ — $ 428,035 $ 428,169 Real estate - other — 191 — 1,000 663,011 664,202 Real estate - construction and land — — — — 41,312 41,312 SBA — — — 233 106,863 107,096 Other — — — — 61,193 61,193 Total loans, gross $ 134 $ 191 $ — $ 1,233 $ 1,300,414 $ 1,301,972 As of December 31, 2020 Commercial and industrial $ — $ — $ — $ — $ 414,548 $ 414,548 Real estate - other 1,505 — — — 549,185 550,690 Real estate - construction and land — — — — 37,193 37,193 SBA — — — 234 317,330 317,564 Other — — — — 49,075 49,075 Total loans, gross $ 1,505 $ — $ — $ 234 $ 1,367,331 $ 1,369,070 The following table reflects the impairment methodology applied to gross loans by portfolio segment and the related allowance for credit losses as of September 30, 2021 and December 31, 2020. Commercial Real Estate and Real Estate Construction (Dollars in thousands) Industrial Other and Land SBA Other Total As of September 30, 2021 Gross loans: Loans individually evaluated for impairment $ — $ 1,000 $ — $ 233 $ — $ 1,233 Loans collectively evaluated for impairment 428,169 663,202 41,312 106,863 61,193 1,300,739 Total gross loans $ 428,169 $ 664,202 $ 41,312 $ 107,096 $ 61,193 $ 1,301,972 Allowance for loan losses: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 8,209 4,393 675 273 21 13,571 Total allowance for loan losses $ 8,209 $ 4,393 $ 675 $ 273 $ 21 $ 13,571 As of December 31, 2020 Gross loans: Loans individually evaluated for impairment $ 2,288 $ — $ — $ 689 $ — $ 2,977 Loans collectively evaluated for impairment 412,260 550,690 37,193 316,875 49,075 1,366,093 Total loans $ 414,548 $ 550,690 $ 37,193 $ 317,564 $ 49,075 $ 1,369,070 Allowance for loan losses: Loans individually evaluated for impairment $ 41 $ — $ — $ 259 $ — $ 300 Loans collectively evaluated for impairment 8,882 3,877 681 345 26 13,811 Total allowance for loan losses $ 8,923 $ 3,877 $ 681 $ 604 $ 26 $ 14,111 The following table reflects information related to impaired loans as of September 30, 2021 and December 31, 2020. Unpaid Average Interest Recorded Principal Related Recorded Income (Dollars in thousands) Investment Balance Allowance Investment Recognized As of September 30, 2021 With no related allowance recorded: Real estate - other $ 1,000 $ 1,000 $ — $ 1,000 $ 8 SBA $ 233 $ 755 $ — $ 1,973 $ 14 Total: Real estate - other $ 1,000 $ 1,000 $ — $ 1,000 $ 8 SBA $ 233 $ 755 $ — $ 1,973 $ 14 As of December 31, 2020 With no related allowance recorded: SBA $ 234 $ 479 $ — $ 1,917 $ — With an allowance recorded: Commercial and industrial $ 2,288 $ 2,288 $ 41 $ 2,137 $ 148 SBA $ 455 $ 455 $ 259 $ 3,921 $ 57 Total: Commercial and industrial $ 2,288 $ 2,288 $ 41 $ 2,137 $ 148 SBA $ 689 $ 934 $ 259 $ 5,838 $ 57 The following table reflects the changes in, and allocation of, the allowance for credit losses by portfolio segment for the three and nine months ended September 30, 2021 and 2020. Commercial Real Estate and Real Estate Construction (Dollars in thousands) Industrial Other and Land SBA Other Total Three months ended September 30, 2021 Beginning balance $ 8,133 $ 4,069 $ 697 $ 317 $ 24 $ 13,240 Provision for loan losses 45 324 (22 ) (44 ) (3 ) 300 Charge-offs — — — — — — Recoveries 31 — — — — 31 Ending balance $ 8,209 $ 4,393 $ 675 $ 273 $ 21 $ 13,571 Three months ended September 30, 2020 Beginning balance $ 7,851 $ 3,332 $ 956 $ 366 $ 19 $ 12,524 Provision for loan losses 772 276 (280 ) 79 3 850 Charge-offs — — — — — — Recoveries 11 — — — — 11 Ending balance $ 8,634 $ 3,608 $ 676 $ 445 $ 22 $ 13,385 Nine months ended September 30, 2021 Beginning balance $ 8,923 $ 3,877 $ 681 $ 604 $ 26 $ 14,111 Provision for loan losses (952 ) 516 (6 ) (53 ) (5 ) (500 ) Charge-offs — — — (278 ) — (278 ) Recoveries 238 — — — — 238 Ending balance $ 8,209 $ 4,393 $ 675 $ 273 $ 21 $ 13,571 Nine months ended September 30, 2020 Beginning balance $ 6,708 $ 3,281 $ 1,022 $ 50 $ 14 $ 11,075 Provision for loan losses 3,688 327 (346 ) 503 8 4,180 Charge-offs (1,868 ) — — (108 ) — (1,976 ) Recoveries 106 — — — — 106 Ending balance $ 8,634 $ 3,608 $ 676 $ 445 $ 22 $ 13,385 Interest forgone on nonaccrual loans totaled $31,000 and $23,000 for the three months ended September 30, 2021 and 2020, respectively, and $84,000 and $168,000 for the nine months ended September 30, 2021 and 2020, respectively. There was no interest recognized on a cash-basis on impaired loans for the three months and nine months ended September 30, 2021 and 2020, respectively. The recorded investment in impaired loans in the tables above excludes accrued interest receivable and net deferred loan origination costs due to their immateriality. Troubled Debt Restructurings At September 30, 2021 and December 31, 2020, the Company had no recorded investments or allocated specific reserves related to loans with terms that had been modified in troubled debt restructurings. The Company had no commitments as of September 30, 2021 and December 31, 2020 to customers with outstanding loans that were classified as troubled debt restructurings. There were no new troubled debt restructurings during the three and nine months ended September 30, 2021 and 2020. The Company had no troubled debt restructurings with a subsequent payment default within twelve months following the modification during the three and nine months ended September 30, 2021 and 2020. COVID-19 For additional information regarding the impact of COVID-19

Borrowing Arrangements

Borrowing Arrangements	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Borrowing Arrangements	4. BORROWING ARRANGEMENTS The Company has a borrowing arrangement with the Federal Reserve Bank of San Francisco (FRB) under which advances are secured by portions of the Bank’s loan and investment securities portfolios. The Company’s credit limit varies according to the amount and composition of the assets pledged as collateral. At September 30, 2021, amounts pledged and available borrowing capacity under such limits were approximately $300.2 million and $200.0 million, respectively. At December 31, 2020, amounts pledged and available borrowing capacity under such limits were approximately $458.7 million and $358.5 million, respectively. In April 2020, the Company secured an additional arrangement with the FRB for a $332.7 million Paycheck Protection Liquidity Facility (PPPLF) two year term borrowing maturing in April 2022 at a fixed rate of 0.35%. As of September 30, 2021 and December 31, 2020, the PPPLF borrowing arrangement had an outstanding balance of $79.5 million and $174.0 million respectively. The Company has a borrowing arrangement with the Federal Home Loan Bank (FHLB) under which advances are secured by portions of the Bank’s loan portfolio. The Company’s credit limit varies according to its total assets and the amount and composition of the loan portfolio pledged as collateral. At September 30, 2021, amounts pledged and available borrowing capacity under such limits were approximately $184.1 million and $138.1 million, respectively. At December 31, 2020, amounts pledged and available borrowing capacity under such limits were approximately $129.3 million and $68.3 million, respectively. In June 2019, the Company secured a $10.0 million FHLB term borrowing for two years maturing in June 2021 at a fixed rate of 1.89%. This FHLB term borrowing was repaid in full at maturity and therefore had no outstanding balance at September 30, 2021 and had an outstanding balance of $10.0 million at December 31, 2020. In May 2020, the Company secured a $5.0 million FHLB term borrowing for one year maturing in May 2021 at a fixed rate of 0.00%. This FHLB term borrowing was repaid in full at maturity and therefore had no outstanding balance at September 30, 2021 and had an outstanding balance $5.0 million at December 31, 2020. Under Federal Funds line of credit agreements with several correspondent banks, the Company can borrow up to $116.0 million. There were no borrowings outstanding under these arrangements at September 30, 2021 and December 31, 2020. The Company maintains a revolving line of credit with a commitment of $5.0 million for a six month term at a rate of Prime plus 0.40%. At September 30, 2021 and December 31, 2020, no borrowings were outstanding under this line of credit. The Company entered into a three year The Bank issued $5.0 million in subordinated debt on April 15, 2016. The subordinated debt had a fixed interest rate of 5.875% for the first 5 years. After the fifth year, the interest rate changed to a variable rate of prime plus 2.00%. The subordinated debt was recorded net of related issuance costs of $87,000. On both September 30, 2021 and December 31, 2020, the balance remained at $5.0 million, net of the remaining unamortized issuance cost. The Company issued $20.0 million in subordinated debt on September 30, 2020. The subordinated debt has a fixed interest rate of 5.00% for the first 5 years and a stated maturity of September 30, 2030. After the fifth year, the interest rate changes to a quarterly variable rate equal to then current three-month term SOFR plus 0.488%. The subordinated debt was recorded net of related issuance costs of $300,000. At September 30, 2021 and December 31, 2020, the balance remained at $20.0 million, net of the remaining unamortized issuance cost. The Company issued an additional $35.0 million in subordinated debt on August 17, 2021. The subordinated debt has a fixed interest rate of 3.50% for the first 5 years and a stated maturity of September 1, 2031. After the fifth year, the interest rate changes to a quarterly variable rate equal to then current three-month term SOFR plus 0.286%. The subordinated debt was recorded net of related issuance costs of $760,000. At September 30, 2021, the balance remained at $35.0 million, net of the remaining unamortized issuance cost .

Commitments and Contingent Liab

Commitments and Contingent Liabilities	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	5. COMMITMENTS AND CONTINGENT LIABILITIES Financial Instruments with Off-Balance The Company is a party to financial instruments with off-balance-sheet Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since some 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 At September 30, 2021 and December 31, 2020, the Company had outstanding unfunded commitments for loans of approximately $580.4 million and $491.1 million, respectively. Unfunded loan commitment reserves, included in the allowance for loan losses, totaled $380,000 and $305,000 at September 30, 2021 and December 31, 2020, respectively. The outstanding unfunded commitments for loans at September 30, 2021 was comprised of fixed rate commitments of approximately $26.9 million and variable rate commitments of approximately $553.5 million. The following table reflects the interest rate and maturity ranges for the unfunded fixed rate loan commitments as of September 30, 2021. Over One Due in Year But One Year Less Than Over (Dollars in thousands) Or Less Five Years Five Years Total Unfunded fixed rate loan commitments: Interest rate less than or equal to 4.00% $ 13,461 $ 1,841 $ 6,646 $ 21,948 Interest rate between 4.00% and 5.00% 2,245 1,160 995 4,400 Interest rate greater than or equal to 5.00% 250 345 — 595 Total unfunded fixed rate loan commitments $ 15,956 $ 3,346 $ 7,641 $ 26,943 Operating Leases The Company leases various office premises under long-term operating lease agreements. These leases expire between 2021 and 2027, with certain leases containing either three, five, or seven year renewal options. The following table reflects the quantitative information for the Company’s leases at September 30, 2021. September 30, (Dollars in thousands) 2021 Operating lease cost (cost resulting from lease payments) $ 1,578 Operating lease - operating cash flows (fixed payments) $ 1,818 Operating lease - ROU assets $ 6,914 Operating lease - liabilities $ 8,774 Weighted average lease term - operating leases 2.6 years Weighted average discount rate - operating leases 0.60 % The following table reflects the minimum commitments under these non-cancellable September 30, (Dollars in thousands) 2021 2021 $ 613 2022 2,441 2023 1,497 2024 1,456 2025 1,500 Thereafter 1,792 Total undiscounted cash flows 9,299 Discount on cash flows (525 ) Total lease liability $ 8,774 Rent expense included in premises and equipment expense totaled $521,000 and $619,000 for the three months ended Contingencies The Company is involved in legal proceedings arising from normal business activities. Management, based upon the advice of legal counsel, believes the ultimate resolution of all pending legal actions will not have a material effect on the Company’s financial position or results of operations. Correspondent Banking Agreements The Company maintains funds on deposit with other federally insured financial institutions under correspondent banking agreements. Insured financial institution deposits up to $250,000 are fully insured by the FDIC under the FDIC’s general deposit insurance rules. At September 30, 2021, uninsured deposits at financial institutions were approximately $39.5 million. At December 31, 2020, uninsured deposits at financial institutions were approximately $8.7 million.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	6. FAIR VALUE MEASUREMENTS Fair Value Hierarchy The Company groups its assets and liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. Valuations within these levels are based upon: Level 1 - Quoted market prices for identical instruments traded in active exchange markets. Level 2 - Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable or can be corroborated by observable market data. Level 3 - Model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect the Company’s estimates of assumptions that market participants would use on pricing the asset or liability. Valuation techniques include management judgment and estimation which may be significant. Management monitors the availability of observable market data to assess the appropriate classification of financial instruments within the fair value hierarchy. Changes in economic conditions or model-based valuation techniques may require the transfer of financial instruments from one fair value level to another. In such instances, the transfer is reported at the beginning of the reporting period. Management evaluates the significance of transfers between levels based upon the nature of the financial instrument and size of the transfer relative to total assets, total liabilities or total earnings. The carrying amounts and estimated fair values of financial instruments at September 30, 2021 and December 31, 2020 are as follows: Carrying Fair Value Measurements (Dollars in thousands) Amount Level 1 Level 2 Level 3 Total As of September 30, 2021 Financial assets: Cash and due from banks $ 601,050 $ 601,050 $ — $ — $ 601,050 Securities available for sale 82,108 — 82,108 — 82,108 Loans, net 1,289,161 — — 1,289,677 1,289,677 Accrued interest receivable 5,235 — 519 4,716 5,235 Financial liabilities: Deposits $ 1,742,054 $ 1,645,361 $ 96,801 $ — $ 1,742,162 Other borrowings 79,536 — — 79,536 79,536 Subordinated debt 59,009 — — 61,127 61,127 Accrued interest payable 327 — 48 279 327 As of December 31, 2020 Financial assets: Cash and due from banks $ 418,517 $ 418,517 $ — $ — $ 418,517 Securities available for sale 55,093 — 55,093 — 55,093 Loans, net 1,355,482 — — 1,360,845 1,360,845 Accrued interest receivable 6,578 — 225 6,353 6,578 Financial liabilities: Deposits $ 1,532,206 $ 1,331,572 $ 200,888 $ — $ 1,532,460 Other borrowings 189,043 — — 189,123 189,123 Subordinated debt 24,994 — — 24,642 24,642 Accrued interest payable 545 — 51 494 545 These estimates do not reflect any premium or discount that could result from offering the Company’s entire holdings of a particular financial instrument for sale at one time, nor do they attempt to estimate the value of anticipated future business related to the instruments. In addition, the tax ramifications related to the realization of unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in any of these estimates. The methods and assumptions used to estimate fair values are described as follows: Cash and Due from banks—The carrying amounts of cash and short-term instruments approximate fair values and are classified as Level 1. Investment Securities—Since quoted prices are generally not available for identical securities, fair values are calculated based on market prices of similar securities on similar dates, resulting in Level 2 classification. FHLB, IBFC, PCBB Stock—It is not practical to determine the fair value of these correspondent bank stocks due to restrictions placed on their transferability. Loans—Fair values of loans for September 30, 2021 and December 31, 2020 are estimated on an exit price basis with contractual cash flow, prepayments, discount spreads, credit loss and liquidity premium assumptions. Loans with similar characteristics such as prepayment rates, terms and rate indexed are aggregated for purposes of the calculations. Impaired loans—Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted accordingly. The fair value of impaired loans with specific allocations of the allowance for loan losses that are secured by real property is generally based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. The methods utilized to estimate the fair value of impaired loans do not necessarily represent an exit price. Deposits—The fair values disclosed for demand deposits (e.g., interest and non-interest FHLB Advances—FHLB Advances are included in Other Borrowings. Fair values for FHLB Advances are estimated using discounted cash flow analyses using interest rates offered at each reporting date by correspondent banks for advances with similar maturities resulting in Level 3 classification. Paycheck Protection Program Liquidity Facility (PPPLF)—The fair value of PPPLF is estimated using a discounted cash flow based on the remaining contractual term and current rates at which similar advances would be obtained resulting in Level 3 classification. Senior Notes—Fair values for senior notes are estimated using a discounted cash flow calculation based on current rates for similar types of debt which may be unobservable, and considering recent trading activity of similar instruments in market which can be inactive and accordingly are classified within in the Level 3 classification. Junior Subordinated Debt Securities—Fair values for subordinated debt are calculated based on its terms and were discounted to the date of the valuation to calculate the fair value on the debt. A market rate based on recent debt offering by peer bank was used to discount cash flow until reprice date and subsequently cash flow were discounted at Prime plus 2% for its security. These assumptions which may be unobservable, and considering recent trading activity of similar instruments in market which can be inactive and accordingly are classified within the Level 3 classification. Accrued Interest Receivable—The carrying amounts of accrued interest receivable approximate fair value resulting in a Level 2 classification for accrued interest receivable on investment securities and a Level 3 classification for accrued interest receivable on loans since investment securities are generally classified using Level 2 inputs and loans are generally classified using Level 3 inputs. Accrued Interest Payable—The carrying amounts of accrued interest payable approximate fair value resulting in a Level 2 classification, since accrued interest payable is from deposits that are generally classified using Level 2 inputs. Off Balance Sheet Instruments—Fair values for off-balance Assets Recorded at Fair Value on a Recurring Basis The Company is required or permitted to record the following assets at fair value on a recurring basis. (Dollars in thousands) Fair Value Level 1 Level 2 Level 3 As of September 30, 2021 Investments available for sale: Mortgage backed securities $ 43,380 $ — $ 43,380 $ — Government agencies 2,152 — 2,152 — Corporate bonds 36,576 — 36,576 — Total assets measured at fair value on a recurring basis $ 82,108 $ — $ 82,108 $ — As of December 31, 2020 Investments available for sale: Mortgage backed securities $ 28,193 $ — $ 28,193 $ — Government agencies 2,412 — 2,412 — Corporate bonds 24,488 — 24,488 — Total assets measured at fair value on a recurring basis $ 55,093 $ — $ 55,093 $ — Fair values for available-for-sale Assets Recorded at Fair Value on a Non-Recurring The Company may be required, from time to time, to measure certain assets at fair value on a non-recurring non-recurring Carrying Fair Value Measurements (Dollars in thousands) Amount Level 1 Level 2 Level 3 As of September 30, 2021 Impaired loans - Real estate other $ 1,000 $ — $ — $ 1,000 Impaired loans - SBA 233 — — 233 Total assets measured at fair value on a non-recurring $ 1,233 $ — $ — $ 1,233 As of December 31, 2020 Impaired loans - SBA $ 689 $ — $ — $ 689 Total assets measured at fair value on a non-recurring $ 689 $ — $ — $ 689 The fair value of impaired loans is based upon independent market prices, estimated liquidation values of loan collateral or appraised value of the collateral as determined by third-party independent appraisers, less selling costs, generally. Level 3 fair value measurement includes other real estate owned that has been measured at fair value upon transfer to foreclosed assets and impaired loans collateralized by real property and other business asset collateral where a specific reserve has been established or a charged-off

Business Impact Of Covid-19

Business Impact Of Covid-19	9 Months Ended
	Sep. 30, 2021
Text Block [Abstract]
Business Impact Of Covid-19	7. BUSINESS IMPACT OF COVID-19 During 2020, the COVID-19 COVID-19 COVID-19 non-essential Investments Management has analyzed the investment portfolio and determined that any impairment would be temporary based on the type of investments the company holds. As part of the Company’s assessment of other-than-temporary-impairment (OTTI), management considered the current impact of the COVID-19 Loan Portfolio The Company has taken measures to both support customers affected by the pandemic and to maintain strong asset quality, including implementing a broad-based risk management strategy to manage credit segments on a real-time basis, and monitoring portfolio risk and related mitigation strategies also by segment. The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) and the revised interagency guidance issued in April 2020, “Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working With Customers Affected by the Coronavirus (Revised)”, provide banks the option to temporarily suspend certain requirements under GAAP related to Troubled Debt Restructurings (“TDRs”) for a limited time to account for the effects of COVID-19. COVID-19 COVID-19 COVID-19 COVID-19. COVID-19 Proactive Deferral Program: As a result of COVID-19, Paycheck Protection Program (PPP): The Company is also participating in the SBA Paycheck Protection Program (PPP). Key Features of the PPP include: • 24-month 60-month • Interest-rate of 1% • Deferred payments until such time the SBA remits the borrower’s loan forgiveness amount to the lender or, if the borrower does not apply for loan forgiveness, 10 months after the end of the borrower’s loan forgiveness period • Loan forgiveness if the funds are used for payroll costs, interest on mortgages, rent, and utilities (at least 60% of the forgiven amount must have been used for payroll); no collateral or personal guarantees are required; neither the government nor lenders will charge any fees • Forgiveness dependent on the employer maintaining or quickly rehiring employees and maintaining salary levels; forgiveness will be reduced if full-time headcount declines, or if salaries and wages decrease • Loans guaranteed by the United States Treasury Department Following the launch of PPP in April 2020, the Company processed 100% of the approximately 730 applications received and all of the eligible applications that were submitted to the SBA received approval, resulting in loans funded of $362.0 million. As of September 30, 2021, loan balances totaling approximately $350.1 million had been approved for forgiveness and the funds remitted to the Company. Additionally, approximately $5.4 million in loan balances had been repaid to the Company directly from our clients. At September 30, 2021, the outstanding balance of the loans funded under the 2020 PPP was $6.5 million. In January 2021, the SBA relaunched the PPP for both first draw and second draw participants that are eligible for the program. Eligible borrowers that previously received a PPP loan may apply for a second draw with the same general loan terms as their first draw PPP loan. The key features of the relaunched program are similar to the initial PPP. As of September 30, 2021, the Company processed 100% of the approximately 390 applications received and all of the eligible applications that were submitted to the SBA received approval, resulting in loans funded of $129.2 million. As of September 30, 2021, loan balances totaling approximately $38.3 million had been approved for forgiveness and the funds remitted to the Company from this second round pool of funding, resulting in an outstanding balance of loans funded under the 2021 PPP of $90.9 million. The following table reflects the concentration of PPP loans funded and outstanding through the Paycheck Protection Program Liquidity Facility (PPPLF) as of September 30, 2021. Number of Principal Number of Loans as a % of Principal Balance as a % of (Dollars in millions) Loans Balance PPP Loans Gross Loans PPP Loans Gross Loans Dental services 174 $ 19.3 52 % 10 % 20 % 1 % Contractors 33 20.4 10 % 2 % 21 % 2 % Other 126 57.7 38 % 8 % 59 % 4 % Total 333 $ 97.4 100 % 20 % 100 % 7 % The PPP loans categorized above as “other” are comprised of multiple sectors, including professional/scientific services, retail, manufacturing, finance, wholesale, and real estate. The Company’s participation in the PPP had the following impact on the operating results for the third quarter and nine months ended September 30, 2021: • Funding of loans under the PPP and related borrowing under the Paycheck Protection Program Liquidity Facility (PPPLF) provided net benefit to net interest income of $1.9 million and $6.5 million during the third quarter and nine months ended September 30, 2021, respectively, including the impact of amortization of deferred fees and origination costs. • The Company received $9.1 million in fees during 2020 related to the origination of PPP loans and $4.4 million in similar fees during 2021. Recognition of the fees was deferred at origination and is being recognized over the term of the loans. For the third quarter and nine months ended September 30, 2021, the Company amortized into interest income approximately $1.9 million and $6.3 million, respectively. As clients are accepted for loan forgiveness by the SBA, the remaining fees will be recognized at the time of payoff of the loan. • The Company deferred loan origination costs of approximately $3.0 million related to PPP loans which are being amortized over the remaining term of the PPP loans. During the third quarter and nine months ended September 30, 2021, the Company amortized into interest income approximately $348,000 and $1.5 million, respectively. • The Company’s provision for credit losses was $300,000 for the third quarter of 2021 primarily as a result of growth in the loan portfolio unrelated to PPP loans. The Company’s continued assessment of the qualitative reserves in response to improving general macroeconomic impacts related to COVID-19 COVID-19. Goodwill The Company completed an impairment analysis of goodwill as of September 30, 2021 and determined there was no impairment. Goodwill impairment exists when a reporting unit’s carrying value exceeds its fair value, which is determined through a qualitative assessment whether it is more likely than not that the fair value of equity of the reporting unit exceeds the carrying value (“Step Zero”). As part of the Company’s qualitative assessment of goodwill impairment, management considered COVID-19

Nature of Operations (Tables)

Nature of Operations (Tables)	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Earnings Per Share, Basic and Diluted	Three months ended Nine months ended September 30, September 30, (Dollars in thousands, except per share data) 2021 2020 2021 2020 Net income available to common shareholders $ 3,216 $ 495 $ 10,187 $ 2,518 Weighted average basic common shares outstanding 8,244,154 8,141,807 8,211,907 8,124,387 Add: dilutive potential common shares 66,645 27,527 71,776 35,134 Weighted average diluted common shares outstanding 8,310,799 8,169,334 8,283,683 8,159,521 Basic earnings per share $ 0.39 $ 0.06 $ 1.24 $ 0.31 Diluted earnings per share $ 0.39 $ 0.06 $ 1.23 $ 0.31

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Available-for-sale	The following table summarizes the amortized cost and estimated fair value of securities available for sale at September 30, 2021 and December 31, 2020. Gross Gross Estimated Amortized Unrealized Unrealized Fair (Dollars in thousands) Cost Gains Losses Value At September 30, 2021: Mortgage backed securities $ 43,324 $ 416 $ (360 ) $ 43,380 Government agencies 2,117 35 — 2,152 Corporate bonds 36,352 589 (365 ) 36,576 Total available for sale securities $ 81,793 $ 1,040 $ (725 ) $ 82,108 At December 31, 2020: Mortgage backed securities $ 27,541 $ 669 $ (17 ) $ 28,193 Government agencies 2,418 — (6 ) 2,412 Corporate bonds 24,224 434 (170 ) 24,488 Total available for sale securities $ 54,183 $ 1,103 $ (193 ) $ 55,093
Summary of available for sale securities and held to maturity securities continuous unrealized loss position fair value	The following table summarizes securities with unrealized losses at September 30, 2021 and December 31, 2020 aggregated by major security type and length of time in a continuous unrealized loss position. Less Than 12 Months More Than 12 Months Total Unrealized Unrealized Unrealized (Dollars in thousands) Fair Value Losses Fair Value Losses Fair Value Losses At September 30, 2021: Mortgage backed securities $ 28,621 $ (360 ) $ — $ — $ 28,621 $ (360 ) Government agencies — — — — — — Corporate bonds 11,750 (77 ) 4,712 (288 ) 16,462 (365 ) Total available for sale securities $ 40,371 $ (437 ) $ 4,712 $ (288 ) $ 45,083 $ (725 ) At December 31, 2020: Mortgage backed securities $ 4,481 $ (17 ) $ — $ — $ 4,481 $ (17 ) Government agencies 2,412 (6 ) — — 2,412 (6 ) Corporate bonds 7,830 (170 ) — — 7,830 (170 ) Total available for sale securities $ 14,723 $ (193 ) $ — $ — $ 14,723 $ (193 )
Summary of maturities available for sale investment securities	The following table summarizes the scheduled maturities of available for sale investment securities as of September 30, 2021. September 30, 2021 Amortized Fair (Dollars in thousands) Cost Value Available for sale securities: Less than one year $ — $ — One to five years 22,145 22,317 Five to ten years 14,846 15,061 Beyond ten years 5,426 5,209 Securities not due at a single maturity date 39,376 39,521 Total available for sale securities $ 81,793 $ 82,108

Loans and Allowance For Credi_2

Loans and Allowance For Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2021
Loans and Leases Receivable Disclosure [Line Items]
Summary of Outstanding Loans	Outstanding loans as of September 30, 2021 and December 31, 2020 are summarized below. Certain loans have been pledged to secure borrowing arrangements (see Note 4). Additionally, SBA loans include loans funded under the Paycheck Protection Program under the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), which was enacted as a result of the COVID-19 September 30, December 31, (Dollars in thousands) 2021 2020 Commercial and industrial $ 428,169 $ 414,548 Real estate - other 664,202 550,690 Real estate - construction and land 41,312 37,193 SBA 107,096 317,564 Other 61,193 49,075 Total loans, gross 1,301,972 1,369,070 Deferred loan origination costs, net 760 523 Allowance for credit losses (13,571 ) (14,111 ) Total loans, net $ 1,289,161 $ 1,355,482
Summary of Information Related to Impaired Loans	The following table reflects information related to impaired loans as of September 30, 2021 and December 31, 2020. Unpaid Average Interest Recorded Principal Related Recorded Income (Dollars in thousands) Investment Balance Allowance Investment Recognized As of September 30, 2021 With no related allowance recorded: Real estate - other $ 1,000 $ 1,000 $ — $ 1,000 $ 8 SBA $ 233 $ 755 $ — $ 1,973 $ 14 Total: Real estate - other $ 1,000 $ 1,000 $ — $ 1,000 $ 8 SBA $ 233 $ 755 $ — $ 1,973 $ 14 As of December 31, 2020 With no related allowance recorded: SBA $ 234 $ 479 $ — $ 1,917 $ — With an allowance recorded: Commercial and industrial $ 2,288 $ 2,288 $ 41 $ 2,137 $ 148 SBA $ 455 $ 455 $ 259 $ 3,921 $ 57 Total: Commercial and industrial $ 2,288 $ 2,288 $ 41 $ 2,137 $ 148 SBA $ 689 $ 934 $ 259 $ 5,838 $ 57
Loans Receivable [Member]
Loans and Leases Receivable Disclosure [Line Items]
Summary of Financing Receivable and Related Impairment Methodology	The following table reflects the impairment methodology applied to gross loans by portfolio segment and the related allowance for credit losses as of September 30, 2021 and December 31, 2020. Commercial Real Estate and Real Estate Construction (Dollars in thousands) Industrial Other and Land SBA Other Total As of September 30, 2021 Gross loans: Loans individually evaluated for impairment $ — $ 1,000 $ — $ 233 $ — $ 1,233 Loans collectively evaluated for impairment 428,169 663,202 41,312 106,863 61,193 1,300,739 Total gross loans $ 428,169 $ 664,202 $ 41,312 $ 107,096 $ 61,193 $ 1,301,972 Allowance for loan losses: Loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — Loans collectively evaluated for impairment 8,209 4,393 675 273 21 13,571 Total allowance for loan losses $ 8,209 $ 4,393 $ 675 $ 273 $ 21 $ 13,571 As of December 31, 2020 Gross loans: Loans individually evaluated for impairment $ 2,288 $ — $ — $ 689 $ — $ 2,977 Loans collectively evaluated for impairment 412,260 550,690 37,193 316,875 49,075 1,366,093 Total loans $ 414,548 $ 550,690 $ 37,193 $ 317,564 $ 49,075 $ 1,369,070 Allowance for loan losses: Loans individually evaluated for impairment $ 41 $ — $ — $ 259 $ — $ 300 Loans collectively evaluated for impairment 8,882 3,877 681 345 26 13,811 Total allowance for loan losses $ 8,923 $ 3,877 $ 681 $ 604 $ 26 $ 14,111
Summary of Allowance for Loan Losses	The following table reflects the changes in, and allocation of, the allowance for credit losses by portfolio segment for the three and nine months ended September 30, 2021 and 2020. Commercial Real Estate and Real Estate Construction (Dollars in thousands) Industrial Other and Land SBA Other Total Three months ended September 30, 2021 Beginning balance $ 8,133 $ 4,069 $ 697 $ 317 $ 24 $ 13,240 Provision for loan losses 45 324 (22 ) (44 ) (3 ) 300 Charge-offs — — — — — — Recoveries 31 — — — — 31 Ending balance $ 8,209 $ 4,393 $ 675 $ 273 $ 21 $ 13,571 Three months ended September 30, 2020 Beginning balance $ 7,851 $ 3,332 $ 956 $ 366 $ 19 $ 12,524 Provision for loan losses 772 276 (280 ) 79 3 850 Charge-offs — — — — — — Recoveries 11 — — — — 11 Ending balance $ 8,634 $ 3,608 $ 676 $ 445 $ 22 $ 13,385 Nine months ended September 30, 2021 Beginning balance $ 8,923 $ 3,877 $ 681 $ 604 $ 26 $ 14,111 Provision for loan losses (952 ) 516 (6 ) (53 ) (5 ) (500 ) Charge-offs — — — (278 ) — (278 ) Recoveries 238 — — — — 238 Ending balance $ 8,209 $ 4,393 $ 675 $ 273 $ 21 $ 13,571 Nine months ended September 30, 2020 Beginning balance $ 6,708 $ 3,281 $ 1,022 $ 50 $ 14 $ 11,075 Provision for loan losses 3,688 327 (346 ) 503 8 4,180 Charge-offs (1,868 ) — — (108 ) — (1,976 ) Recoveries 106 — — — — 106 Ending balance $ 8,634 $ 3,608 $ 676 $ 445 $ 22 $ 13,385
Summary of Loan Portfolio Allocated by Management's Internal Risk Ratings	The following table reflects the loan portfolio allocated by management’s internal risk ratings at September 30, 2021 and December 31, 2020. Commercial Real Estate and Real Estate Construction (Dollars in thousands) Industrial Other and Land SBA Other Total As of September 30, 2021 Grade: Pass $ 413,292 $ 653,813 $ 37,220 $ 105,164 $ 61,193 $ 1,270,682 Special Mention 10,933 4,661 1,288 1,000 — 17,882 Substandard 3,944 5,728 2,804 932 — 13,408 Total $ 428,169 $ 664,202 $ 41,312 $ 107,096 $ 61,193 $ 1,301,972 As of December 31, 2020 Grade: Pass $ 401,629 $ 540,153 $ 34,543 $ 315,277 $ 49,075 $ 1,340,677 Special Mention 9,013 2,911 872 859 — 13,655 Substandard 3,906 7,626 1,778 1,428 — 14,738 Total $ 414,548 $ 550,690 $ 37,193 $ 317,564 $ 49,075 $ 1,369,070
Summary of Aging Analysis of the Loan Portfolio by the Time Past Due	The following table reflects an aging analysis of the loan portfolio by the time past due at September 30, 2021 and December 31, 2020. (Dollars in thousands) 30 Days 60 Days 90+ Days Non-Accrual Current Total As of September 30, 2021 Commercial and industrial $ 134 $ — $ — $ — $ 428,035 $ 428,169 Real estate - other — 191 — 1,000 663,011 664,202 Real estate - construction and land — — — — 41,312 41,312 SBA — — — 233 106,863 107,096 Other — — — — 61,193 61,193 Total loans, gross $ 134 $ 191 $ — $ 1,233 $ 1,300,414 $ 1,301,972 As of December 31, 2020 Commercial and industrial $ — $ — $ — $ — $ 414,548 $ 414,548 Real estate - other 1,505 — — — 549,185 550,690 Real estate - construction and land — — — — 37,193 37,193 SBA — — — 234 317,330 317,564 Other — — — — 49,075 49,075 Total loans, gross $ 1,505 $ — $ — $ 234 $ 1,367,331 $ 1,369,070

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Summary of Unfunded Fixed Rate Loan Commitments	Over One Due in Year But One Year Less Than Over (Dollars in thousands) Or Less Five Years Five Years Total Unfunded fixed rate loan commitments: Interest rate less than or equal to 4.00% $ 13,461 $ 1,841 $ 6,646 $ 21,948 Interest rate between 4.00% and 5.00% 2,245 1,160 995 4,400 Interest rate greater than or equal to 5.00% 250 345 — 595 Total unfunded fixed rate loan commitments $ 15,956 $ 3,346 $ 7,641 $ 26,943
Summary of Quantitative Information About Operating Leases	The following table reflects the quantitative information for the Company’s leases at September 30, 2021. September 30, (Dollars in thousands) 2021 Operating lease cost (cost resulting from lease payments) $ 1,578 Operating lease - operating cash flows (fixed payments) $ 1,818 Operating lease - ROU assets $ 6,914 Operating lease - liabilities $ 8,774 Weighted average lease term - operating leases 2.6 years Weighted average discount rate - operating leases 0.60 %
Summary of Lessee, Operating Lease	The following table reflects the minimum commitments under these non-cancellable September 30, (Dollars in thousands) 2021 2021 $ 613 2022 2,441 2023 1,497 2024 1,456 2025 1,500 Thereafter 1,792 Total undiscounted cash flows 9,299 Discount on cash flows (525 ) Total lease liability $ 8,774

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments	The carrying amounts and estimated fair values of financial instruments at September 30, 2021 and December 31, 2020 are as follows: Carrying Fair Value Measurements (Dollars in thousands) Amount Level 1 Level 2 Level 3 Total As of September 30, 2021 Financial assets: Cash and due from banks $ 601,050 $ 601,050 $ — $ — $ 601,050 Securities available for sale 82,108 — 82,108 — 82,108 Loans, net 1,289,161 — — 1,289,677 1,289,677 Accrued interest receivable 5,235 — 519 4,716 5,235 Financial liabilities: Deposits $ 1,742,054 $ 1,645,361 $ 96,801 $ — $ 1,742,162 Other borrowings 79,536 — — 79,536 79,536 Subordinated debt 59,009 — — 61,127 61,127 Accrued interest payable 327 — 48 279 327 As of December 31, 2020 Financial assets: Cash and due from banks $ 418,517 $ 418,517 $ — $ — $ 418,517 Securities available for sale 55,093 — 55,093 — 55,093 Loans, net 1,355,482 — — 1,360,845 1,360,845 Accrued interest receivable 6,578 — 225 6,353 6,578 Financial liabilities: Deposits $ 1,532,206 $ 1,331,572 $ 200,888 $ — $ 1,532,460 Other borrowings 189,043 — — 189,123 189,123 Subordinated debt 24,994 — — 24,642 24,642 Accrued interest payable 545 — 51 494 545
Summary of Assets at Fair Value on a Recurring Basis	The Company is required or permitted to record the following assets at fair value on a recurring basis. (Dollars in thousands) Fair Value Level 1 Level 2 Level 3 As of September 30, 2021 Investments available for sale: Mortgage backed securities $ 43,380 $ — $ 43,380 $ — Government agencies 2,152 — 2,152 — Corporate bonds 36,576 — 36,576 — Total assets measured at fair value on a recurring basis $ 82,108 $ — $ 82,108 $ — As of December 31, 2020 Investments available for sale: Mortgage backed securities $ 28,193 $ — $ 28,193 $ — Government agencies 2,412 — 2,412 — Corporate bonds 24,488 — 24,488 — Total assets measured at fair value on a recurring basis $ 55,093 $ — $ 55,093 $ —
Summary of Impaired Loans Measured at Fair Value on a Non-Recurring Basis	The following table summarizes impaired loans measured at fair value on a non-recurring Carrying Fair Value Measurements (Dollars in thousands) Amount Level 1 Level 2 Level 3 As of September 30, 2021 Impaired loans - Real estate other $ 1,000 $ — $ — $ 1,000 Impaired loans - SBA 233 — — 233 Total assets measured at fair value on a non-recurring $ 1,233 $ — $ — $ 1,233 As of December 31, 2020 Impaired loans - SBA $ 689 $ — $ — $ 689 Total assets measured at fair value on a non-recurring $ 689 $ — $ — $ 689

Business Impact Of Covid-19 (Ta

Business Impact Of Covid-19 (Tables)	9 Months Ended
	Sep. 30, 2021
Text Block [Abstract]
Schedule of loans funded through PPPLF	The following table reflects the concentration of PPP loans funded and outstanding through the Paycheck Protection Program Liquidity Facility (PPPLF) as of September 30, 2021. Number of Principal Number of Loans as a % of Principal Balance as a % of (Dollars in millions) Loans Balance PPP Loans Gross Loans PPP Loans Gross Loans Dental services 174 $ 19.3 52 % 10 % 20 % 1 % Contractors 33 20.4 10 % 2 % 21 % 2 % Other 126 57.7 38 % 8 % 59 % 4 % Total 333 $ 97.4 100 % 20 % 100 % 7 %

Nature of Operations - Summary

Nature of Operations - Summary of Earnings Per Share, Basic and Diluted (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 3,216	$ 4,162	$ 2,809	$ 495	$ 1,550	$ 473	$ 10,187	$ 2,518
Weighted average basic common shares outstanding	8,244,154			8,141,807			8,211,907	8,124,387
Add: dilutive potential common shares	66,645			27,527			71,776	35,134
Weighted average diluted common shares outstanding	8,310,799			8,169,334			8,283,683	8,159,521
Basic earnings per share	$ 0.39			$ 0.06			$ 1.24	$ 0.31
Diluted earnings per share	$ 0.39			$ 0.06			$ 1.23	$ 0.31

Investment Securities - Summary

Investment Securities - Summary Of The Amortized Cost And Estimated Fair Value Of Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 81,793	$ 54,183
Gross unrealized gains	1,040	1,103
Gross unrealized losses	(725)	(193)
Estimated fair value	82,108	55,093
Corporate bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	36,352	24,224
Gross unrealized gains	589	434
Gross unrealized losses	(365)	(170)
Estimated fair value	36,576	24,488
Mortgage backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	43,324	27,541
Gross unrealized gains	416	669
Gross unrealized losses	(360)	(17)
Estimated fair value	43,380	28,193
Government agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	2,117	2,418
Gross unrealized gains	35	0
Gross unrealized losses	0	(6)
Estimated fair value	$ 2,152	$ 2,412

Investment Securities - Summa_2

Investment Securities - Summary of Available-For-Sale Securities and Held to Maturity Securities, Continuous Unrealized Loss Position, Fair Value (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	$ 40,371	$ 14,723
Less than 12 months unrealized losses	(437)	(193)
12 months or longer fair value	4,712
12 months or longer unrealized losses	(288)
Fair value	45,083	14,723
Unrealized losses	(725)	(193)
Mortgage backed securities [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	28,621	4,481
Less than 12 months unrealized losses	(360)	(17)
Fair value	28,621	4,481
Unrealized losses	(360)	(17)
Government agencies [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value		2,412
Less than 12 months unrealized losses		(6)
Fair value		2,412
Unrealized losses		(6)
Corporate bonds [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	11,750	7,830
Less than 12 months unrealized losses	(77)	(170)
12 months or longer fair value	4,712
12 months or longer unrealized losses	(288)
Fair value	16,462	7,830
Unrealized losses	$ (365)	$ (170)

Investment Securities - Summa_3

Investment Securities - Summary of Maturities Available for Sale Investment Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amortized Cost Available for sale securities:
One to five years	$ 22,145
Five to ten years	14,846
Beyond ten years	5,426
Securities not due at a single maturity date	39,376
Total available for sale securities	81,793	$ 54,183
Fair Value Available for sale securities:
One to five years	22,317
Five to ten years	15,061
Beyond ten years	5,209
Securities not due at a single maturity date	39,521
Total available for sale securities	$ 82,108	$ 55,093

Investment Securities - Additio

Investment Securities - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2021USD ($)Securities	Sep. 30, 2020USD ($)Securities	Dec. 31, 2020Securities
Investments Debt And Equity Securities [Line Items]
Number of securities held in portfolio | Securities	38		29
Number of available for sale securities in unrealized loss positions | Securities	0	6
Net unrealized gains on available for sale investment securities	$ 315,000	$ 910,000
Payments to acquire securities	$ 36,500,000	35,400,000
Proceeds from sale of securities		$ 7,700,000

Loans and Allowance For Credi_3

Loans and Allowance For Credit Losses - Summary of Outstanding Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	$ 1,301,972		$ 1,369,070
Deferred loan origination costs, net	760		523
Allowance for credit losses	(13,571)	$ (13,240)	(14,111)	$ (13,385)	$ (12,524)	$ (11,075)
Total loans, net	1,289,161		1,355,482
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	428,169		414,548
Allowance for credit losses	(8,209)	(8,133)	(8,923)	(8,634)	(7,851)	(6,708)
Real Estate - Other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	664,202		550,690
Real Estate - Construction & Land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	41,312		37,193
Allowance for credit losses	(675)	(697)	(681)	(676)	(956)	(1,022)
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	107,096		317,564
Allowance for credit losses	(273)	(317)	(604)	(445)	(366)	(50)
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	61,193		49,075
Allowance for credit losses	$ (21)	$ (24)	$ (26)	$ (22)	$ (19)	$ (14)

Loans and Allowance For Credi_4

Loans and Allowance For Credit Losses - Summary of Loan Portfolio Allocated by Management's Internal Risk Ratings (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	$ 1,301,972	$ 1,369,070
Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	428,169	414,548
Real Estate Construction And Land [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	41,312	37,193
SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	107,096	317,564
Other Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	61,193	49,075
Loans Receivable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	1,301,972	1,369,070
Loans Receivable [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	1,270,682	1,340,677
Loans Receivable [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	17,882	13,655
Loans Receivable [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	13,408	14,738
Loans Receivable [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	428,169	414,548
Loans Receivable [Member] | Commercial And Industrial [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	413,292	401,629
Loans Receivable [Member] | Commercial And Industrial [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	10,933	9,013
Loans Receivable [Member] | Commercial And Industrial [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	3,944	3,906
Loans Receivable [Member] | Real Estate, Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	664,202	550,690
Loans Receivable [Member] | Real Estate, Other [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	653,813	540,153
Loans Receivable [Member] | Real Estate, Other [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	4,661	2,911
Loans Receivable [Member] | Real Estate, Other [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	5,728	7,626
Loans Receivable [Member] | Real Estate Construction And Land [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	41,312	37,193
Loans Receivable [Member] | Real Estate Construction And Land [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	37,220	34,543
Loans Receivable [Member] | Real Estate Construction And Land [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	1,288	872
Loans Receivable [Member] | Real Estate Construction And Land [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	2,804	1,778
Loans Receivable [Member] | SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	107,096	317,564
Loans Receivable [Member] | SBA [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	105,164	315,277
Loans Receivable [Member] | SBA [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	1,000	859
Loans Receivable [Member] | SBA [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	932	1,428
Loans Receivable [Member] | Other Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	61,193	49,075
Loans Receivable [Member] | Other Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	$ 61,193	$ 49,075

Loans and Allowance For Credi_5

Loans and Allowance For Credit Losses - Summary of Aging Analysis of the Loan Portfolio by the Time Past Due (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total	$ 1,301,972	$ 1,369,070
Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Total	428,169	414,548
Real Estate - Other [Member] | Over 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	191
Real Estate - Construction & Land [Member]
Financing Receivable, Past Due [Line Items]
Total	41,312	37,193
SBA [Member]
Financing Receivable, Past Due [Line Items]
Total	107,096	317,564
Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Total	61,193	49,075
Loans Receivable [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,233	234
Current	1,300,414	1,367,331
Total	1,301,972	1,369,070
Loans Receivable [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	134	1,505
Loans Receivable [Member] | Over 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	191
Loans Receivable [Member] | Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Current	428,035	414,548
Total	428,169	414,548
Loans Receivable [Member] | Commercial And Industrial [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	134
Loans Receivable [Member] | Real Estate - Other [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,000
Current	663,011	549,185
Total	664,202	550,690
Loans Receivable [Member] | Real Estate - Other [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	0	1,505
Loans Receivable [Member] | Real Estate - Construction & Land [Member]
Financing Receivable, Past Due [Line Items]
Current	41,312	37,193
Total	41,312	37,193
Loans Receivable [Member] | SBA [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	233	234
Current	106,863	317,330
Total	107,096	317,564
Loans Receivable [Member] | SBA [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	0
Loans Receivable [Member] | Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Current	61,193	49,075
Total	$ 61,193	$ 49,075

Loans and Allowance For Credi_6

Loans and Allowance For Credit Losses - Summary of Financing Receivable and Related Impairment Methodology (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	$ 1,301,972	$ 1,369,070
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	428,169	414,548
Real Estate Construction & Land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	41,312	37,193
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	107,096	317,564
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	61,193	49,075
Loans Receivable [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans individually evaluated for impairment	1,233	2,977
Loans collectively evaluated for impairment	1,300,739	1,366,093
Total gross loans	1,301,972	1,369,070
Loans individually evaluated for impairment	0	300
Loans collectively evaluated for impairment	13,571	13,811
Total allowance for loan losses	13,571	14,111
Loans Receivable [Member] | Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans individually evaluated for impairment	0	2,288
Loans collectively evaluated for impairment	428,169	412,260
Total gross loans	428,169	414,548
Loans individually evaluated for impairment	0	41
Loans collectively evaluated for impairment	8,209	8,882
Total allowance for loan losses	8,209	8,923
Loans Receivable [Member] | Real Estate - Other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans individually evaluated for impairment	1,000
Loans collectively evaluated for impairment	663,202	550,690
Total gross loans	664,202	550,690
Loans collectively evaluated for impairment	4,393	3,877
Total allowance for loan losses	4,393	3,877
Loans Receivable [Member] | Real Estate Construction & Land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans collectively evaluated for impairment	41,312	37,193
Total gross loans	41,312	37,193
Loans collectively evaluated for impairment	675	681
Total allowance for loan losses	675	681
Loans Receivable [Member] | SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans individually evaluated for impairment	233	689
Loans collectively evaluated for impairment	106,863	316,875
Total gross loans	107,096	317,564
Loans individually evaluated for impairment	0	259
Loans collectively evaluated for impairment	273	345
Total allowance for loan losses	273	604
Loans Receivable [Member] | Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans collectively evaluated for impairment	61,193	49,075
Total gross loans	61,193	49,075
Loans collectively evaluated for impairment	21	26
Total allowance for loan losses	$ 21	$ 26

Loans and Allowance For Credi_7

Loans and Allowance For Credit Losses - Summary of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 13,240	$ 12,524	$ 14,111	$ 11,075
Provision for loan losses	300	850	(500)	4,180
Charge-offs	0	0	(278)	(1,976)
Recoveries	31	11	238	106
Ending balance	13,571	13,385	13,571	13,385
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	8,133	7,851	8,923	6,708
Provision for loan losses	45	772	(952)	3,688
Charge-offs		0		(1,868)
Recoveries	31	11	238	106
Ending balance	8,209	8,634	8,209	8,634
Real Estate, Other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	4,069	3,332	3,877	3,281
Provision for loan losses	324	276	516	327
Ending balance	4,393	3,608	4,393	3,608
Real Estate Construction And Land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	697	956	681	1,022
Provision for loan losses	(22)	(280)	(6)	(346)
Ending balance	675	676	675	676
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	317	366	604	50
Provision for loan losses	(44)	79	(53)	503
Charge-offs	0	0	(278)	(108)
Ending balance	273	445	273	445
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	24	19	26	14
Provision for loan losses	(3)	3	(5)	8
Ending balance	$ 21	$ 22	$ 21	$ 22

Loans and Allowance For Credi_8

Loans and Allowance For Credit Losses - Summary of Information Related to Impaired Loans (Detail) - Loans Receivable [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With an allowance		$ 2,288
Unpaid Principal Balance With an allowance		2,288
Related Allowance		41
Average Recorded Investment With an allowance		2,137
Interest Income Recognized With an allowance		148
Recorded Investment		2,288
Unpaid Principal Balance		2,288
Average Recorded Investment		2,137
Interest Income Recognized		148
Real Estate - Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With no related allowance	$ 1,000
Unpaid Principal Balance With no related allowance	1,000
Average Recorded Investment With no related allowance	1,000
Interest Income Recognized With no related allowance	8
Recorded Investment	1,000
Unpaid Principal Balance	1,000
Average Recorded Investment	1,000
Interest Income Recognized	8
SBA [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With no related allowance	233	234
Unpaid Principal Balance With no related allowance	755	479
Average Recorded Investment With no related allowance	1,973	1,917
Interest Income Recognized With no related allowance	14
Recorded Investment With an allowance		455
Unpaid Principal Balance With an allowance		455
Related Allowance		259
Average Recorded Investment With an allowance		3,921
Interest Income Recognized With an allowance		57
Recorded Investment	233	689
Unpaid Principal Balance	755	934
Average Recorded Investment	1,973	5,838
Interest Income Recognized	$ 14	$ 57

Loans and Allowance For Credi_9

Loans and Allowance For Credit Losses - Additional Information (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)Loans	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest forgone on nonaccrual loans	$ 31,000	$ 23,000	$ 84,000	$ 168,000
Financing Receivable, Troubled Debt Restructuring	0		$ 0		$ 0
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Increase Decrease In Allowance For Loan And Lease Losses	$ 0	$ 0	$ 0	$ 0

Borrowing Arrangements - Additi

Borrowing Arrangements - Additional Information (Detail) - USD ($)	Aug. 17, 2021	May 31, 2020	Apr. 30, 2020	Apr. 15, 2016	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jun. 30, 2019
Short-term Debt [Line Items]
FHLB Advance, Collateral Pledged					$ 184,100,000		$ 129,300,000
FHLB Advance, Available Borrowing Capacity					138,100,000		68,300,000
FHLB Advance, Amount Of Advances		$ 5,000,000			0		5,000,000	$ 10,000,000
FHLB Advance, Term		1 year
FHLB Advance, Maturity Date		2021
FHLB Advance, Interest Rate		0.00%						1.89%
Junior Subordinated debt securities					59,009,000		24,994,000
Federal Home Loan Ten Million Outstanding [Member]
Short-term Debt [Line Items]
Federal home loan banks term borrowings outstanding					0		10,000,000
Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Face Amount				$ 5,000,000
Debt Instrument, IssuanceDate				Apr. 15, 2016		Sep. 30, 2020
Debt Instrument, Interest Rate Terms				The subordinated debt had a fixed interest rate of 5.875% for the first 5 years		The subordinated debt has a fixed interest rate of 5.00% for the first 5 years
Debt Instrument, Fixed Interest Rate				5.875%		5.00%
Related issuance costs				$ 87,000	300,000,000,000
Junior Subordinated debt securities					$ 5,000,000		5,000,000
Prime Rate [Member] | Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Variable Interest Rate Basis				variable rate of prime plus 2.00%
Debt Instrument, Variable Rate				2.00%
SOFR [Member] | Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Variable Interest Rate Basis						variable rate equal to then current three-month term SOFR plus 0.488%
Debt Instrument, Variable Rate					0.488%
Debt Instrument, Face Amount						$ 20,000,000
Junior Subordinated debt securities					$ 20,000,000		20,000,000
SOFR [Member] | Additional Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Variable Interest Rate Basis	variable rate equal to then current three-month term SOFR plus 0.286%
Debt Instrument, Variable Rate	3.50%
Debt Instrument, Face Amount	$ 35,000,000
Debt Instrument, Interest Rate Terms	The subordinated debt has a fixed interest rate of 3.50%
Related issuance costs	$ 760,000
Junior Subordinated debt securities					35,000,000
Debt Instrument, Maturity Date	Sep. 1, 2031
Correspondent Banks [Member]
Short-term Debt [Line Items]
Borrowings outstanding					0		0
Line Of Credit Maximum Borrowing Capacity					116,000,000
Secured Debt [Member]
Short-term Debt [Line Items]
Borrowings outstanding					0		0
Line Of Credit Maximum Borrowing Capacity					$ 12,000,000
Line of Credit Facility, Expiration Period					3 years
Line Of Credit, Fixed Interest Rate					3.95%
Secured Debt [Member] | Federal Reserve Bank of San Francisco [Member]
Short-term Debt [Line Items]
Loans Pledged As Collateral					$ 300,200,000		458,700,000
Line Of Credit Available Borrowing Capacity					200,000,000		358,500,000
Revolving Credit Facility [Member]
Short-term Debt [Line Items]
Borrowings outstanding					0		0
Line Of Credit Maximum Borrowing Capacity					$ 5,000,000
Revolving Credit Facility [Member] | One Year Prime Rate [Member]
Short-term Debt [Line Items]
Debt Instrument, Variable Interest Rate Basis					six month term at a rate of Prime plus 0.40%
Debt Instrument, Variable Rate					0.40%
Paycheck Protection Liquidity Facility [Member]
Short-term Debt [Line Items]
Borrowings outstanding					$ 79,500,000		$ 174,000,000
Line Of Credit Maximum Borrowing Capacity			$ 332,700,000
Line of Credit Facility, Expiration Period			2 years
Line Of Credit, Fixed Interest Rate			0.35%

Commitments and Contingent Li_3

Commitments and Contingent Liabilities - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Percentage Of Commercial And industrial Loans to Total Loans
Cash Deposit FDIC Insurance Limit	$ 250,000,000		$ 250,000,000
Uninsured deposits at financial institutions	39,500,000		39,500,000		$ 8,700,000
Commitments for loans	580,400,000		580,400,000		491,100,000
Reserve for unfunded loan commitments	380,000,000		380,000,000		$ 305,000,000
Rent and equipment expense	$ 521,000	$ 619,000	1,600,000	$ 1,900,000
Outstanding unfunded commitments for loans fixed rate of interest amount			26,943,000
Outstanding unfunded commitments for loans fixed rate of interest amount			$ 553,500,000

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Summary of Unfunded Fixed Rate Loan Commitments (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021USD ($)
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	$ 15,956
Over One Year But Less Than Five Years	3,346
Over Five Years	7,641
Total	26,943
Interest rate less than or equal to 4.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	13,461
Over One Year But Less Than Five Years	1,841
Over Five Years	6,646
Total	21,948
Interest rate between 4.00% and 5.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	2,245
Over One Year But Less Than Five Years	1,160
Over Five Years	995
Total	4,400
Interest rate greater than or equal to 5.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	250
Over One Year But Less Than Five Years	345
Over Five Years	0
Total	$ 595

Commitments and Contingent Li_5

Commitments and Contingent Liabilities - Summary of Unfunded Fixed Rate Loan Commitments (Details) (Parenthetical)	Sep. 30, 2021
Interest rate less than or equal to 4.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loans Receivable Unfunded Commitments Fixed Rate Of Interest Percentage	4.00%
Maximum [Member] | Interest rate between 4.00% and 5.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loans Receivable Unfunded Commitments Fixed Rate Of Interest Percentage	5.00%
Minimum [Member] | Interest rate between 4.00% and 5.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loans Receivable Unfunded Commitments Fixed Rate Of Interest Percentage	4.00%
Minimum [Member] | Interest rate greater than or equal to 5.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loans Receivable Unfunded Commitments Fixed Rate Of Interest Percentage	5.00%

Commitments and Contingent Li_6

Commitments and Contingent Liabilities - Summary of Quantitative Information for the Company's Leases (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021USD ($)
Operating lease cost (cost resulting from lease payments)	$ 1,578
Operating lease - operating cash flows (fixed payments)	1,818
Operating lease - ROU assets	6,914
Operating lease - liabilities	$ 8,774
Weighted average lease term - operating leases	2 years 7 months 6 days
Weighted average discount rate - operating leases	0.60%

Commitments and Contingent Li_7

Commitments and Contingent Liabilities - Summary of Operating Lease (Detail) $ in Thousands	Sep. 30, 2021USD ($)
Leases [Abstract]
2021	$ 613
2022	2,441
2023	1,497
2024	1,456
2025	1,500
Thereafer	1,792
Total undiscounted cash flows	9,299
Discount on cash flows	(525)
Total lease liability	$ 8,774

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019
Financial assets
Cash and due from banks	$ 601,050	$ 418,517	$ 503,894	$ 114,342
Securities available for sale	82,108	55,093
Loans, net	1,289,677	1,360,845
Accrued interest receivable	5,235	6,578
Financial liabilities
Deposits	1,742,162	1,532,460
Other borrowings	79,536	189,123
Subordinated debt	61,127	24,642
Accrued interest payable	327	545
Carrying Amount [Member]
Financial assets
Cash and due from banks	601,050	418,517
Securities available for sale	82,108	55,093
Loans, net	1,289,161	1,355,482
Accrued interest receivable	5,235	6,578
Financial liabilities
Deposits	1,742,054	1,532,206
Other borrowings	79,536	189,043
Subordinated debt	59,009	24,994
Accrued interest payable	327	545
Level 1 [Member]
Financial assets
Cash and due from banks	601,050	418,517
Financial liabilities
Deposits	1,645,361	1,331,572
Level 2 [Member]
Financial assets
Securities available for sale	82,108	55,093
Accrued interest receivable	519	225
Financial liabilities
Deposits	96,801	200,888
Accrued interest payable	48	51
Level 3 [Member]
Financial assets
Loans, net	1,289,677	1,360,845
Accrued interest receivable	4,716	6,353
Financial liabilities
Other borrowings	79,536	189,123
Subordinated debt	61,127	24,642
Accrued interest payable	$ 279	$ 494

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	Apr. 15, 2016
Junior Subordinated Debt [Member] | Prime Rate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Variable Rate	2.00%

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Assets at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	$ 82,108	$ 55,093
Mortgage backed securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	43,380	28,193
Government agencies [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	2,152	2,412
Corporate bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	36,576	24,488
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	82,108	55,093
Level 2 [Member] | Mortgage backed securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	43,380	28,193
Level 2 [Member] | Government agencies [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	2,152	2,412
Level 2 [Member] | Corporate bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	$ 36,576	$ 24,488

Fair Value Measurements - Sum_3

Fair Value Measurements - Summary of Impaired Loans Measured at Fair Value on a Non-Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 1,233	$ 689
Carrying Amount [Member] | Real estate other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	1,000
Carrying Amount [Member] | SBA [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	233	689
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	1,233	689
Level 3 [Member] | Real estate other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	1,000
Level 3 [Member] | SBA [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 233	$ 689

Business Impact Of Covid-19 - A

Business Impact Of Covid-19 - Additional Information (Detail)	Jun. 05, 2021	Jun. 05, 2020	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)Loans	Sep. 30, 2020USD ($)	Dec. 31, 2020USD ($)Loans	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Financing receivable, modifications, number of contracts | Loans					0		0
Financing receivable, troubled debt restructuring			$ 0		$ 0		$ 0
Financing receivable modifications payment deferral number of days					10 months
Number of loan applications received | Loans					333
Payment protection loan applications received amount			362,000,000		$ 362,000,000
Goodwill, Impairment					$ 0
Percentage of processed application under PPP loan					100.00%
Loan funded under PPP loan			97,400,000		$ 97,400,000
Interest Income (Expense), Net			13,841,000	$ 11,188,000	40,763,000	$ 32,154,000
Provision for Loan and Lease Losses			300,000	850,000	(500,000)	4,180,000
Loans and Leases Receivable, Allowance			$ 13,571,000	13,385,000	$ 13,571,000	$ 13,385,000	14,111,000	$ 13,240,000	$ 12,524,000	$ 11,075,000
SBA Payment Protection Program [Member]
Debt Instrument, Term	60 months	24 months
Debt Instrument, Fixed Interest Rate			1.00%		1.00%
Number of loan applications received | Loans					730
Value of financing receivables apply for loan forgiveness			$ 390		$ 390
Value of financing receivables apply for loan forgiveness in process			350,100,000		350,100,000
Proceeds from repayments of long term loans advanced					5,400,000
PPP Loans [Member]
Loan funded under PPP loan			6,500,000		6,500,000
Interest Income (Expense), Net			348,000		1,500,000
Debt instrument, Decrease, Forgiveness					38,300,000
Long-term debt			90,900,000		$ 90,900,000
SBA Payment Protection Program Relaunched [Member]
Percentage of processed application under PPP loan					100.00%
Loan funded under PPP loan			129,200,000		$ 129,200,000
COVID-19 [Member] | PPP Loans [Member]
Fees received					4,400,000		9,100,000
Amortization of loan			1,900,000	$ 3,000,000	6,300,000
Interest Income (Expense), Net			1,900,000		6,500,000
Provision for Loan and Lease Losses			300,000
Loans and Leases Receivable, Allowance			500,000		$ 500,000
COVID-19 [Member] | Payment Deferral [Member]
Financing receivable, modifications, number of contracts | Loans					383
Financing receivable, troubled debt restructuring							323,900,000
Financing receivable modifications aggregate monthly principal and interest payments							$ 3,700,000
Financing receivable modifications payment deferral number of days					90 days
Financing receivable modifications, payment deferral, additional number of days					90 days
Financing receivables apply for extension			$ 6,700,000		$ 6,700,000

Business Impact Of Covid-19 - S

Business Impact Of Covid-19 - Summary of Loans Funded under PPPLF (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)Loans
Number of Loans | Loans	333
Long-term Debt, Gross	$ 97.4
PPP Loans [Member]
Long-term Debt, Gross	$ 6.5
Number of Loans as a Percentage of Loans	100.00%
Principal Balance as a Percentage of Loans	100.00%
Gross Loans [Member]
Number of Loans as a Percentage of Loans	20.00%
Principal Balance as a Percentage of Loans	7.00%
Dental services [Member]
Number of Loans | Loans	174
Long-term Debt, Gross	$ 19.3
Dental services [Member] | PPP Loans [Member]
Number of Loans as a Percentage of Loans	52.00%
Principal Balance as a Percentage of Loans	20.00%
Dental services [Member] | Gross Loans [Member]
Number of Loans as a Percentage of Loans	10.00%
Principal Balance as a Percentage of Loans	1.00%
Contractors [Member]
Number of Loans | Loans	33
Long-term Debt, Gross	$ 20.4
Contractors [Member] | PPP Loans [Member]
Number of Loans as a Percentage of Loans	10.00%
Principal Balance as a Percentage of Loans	21.00%
Contractors [Member] | Gross Loans [Member]
Number of Loans as a Percentage of Loans	2.00%
Principal Balance as a Percentage of Loans	2.00%
Other [Member]
Number of Loans | Loans	126
Long-term Debt, Gross	$ 57.7
Other [Member] | PPP Loans [Member]
Number of Loans as a Percentage of Loans	38.00%
Principal Balance as a Percentage of Loans	59.00%
Other [Member] | Gross Loans [Member]
Number of Loans as a Percentage of Loans	8.00%
Principal Balance as a Percentage of Loans	4.00%