California Bancorp (CALB) 10-K 25 Mar 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Mar. 15, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Period End Date	Dec. 31, 2020
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Document Annual Report	true
Entity Registrant Name	CALIFORNIA BANCORP
Entity Central Index Key	0001752036
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding		8,184,025
Entity Public Float			$ 111.4
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
ICFR Auditor Attestation Flag	false

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS:
Cash and due from banks	$ 22,485	$ 19,579
Federal funds sold	396,032	94,763
Total cash and cash equivalents	418,517	114,342
Investment securities, available for sale	55,093	28,555
Loans, net of allowance for losses of $14,111 and $11,075 at December 31, 2020 and December 31, 2019, respectively	1,355,482	941,132
Premises and equipment, net	5,778	3,668
Bank owned life insurance (BOLI)	23,718	22,316
Goodwill and other intangible assets	7,554	7,595
Accrued interest receivable and other assets	39,637	34,426
Total assets	1,905,779	1,152,034
Deposits
Non-interest bearing	673,100	387,267
Interest bearing	859,106	600,969
Total deposits	1,532,206	988,236
Other borrowings	189,043	10,000
Junior Subordinated debt securities	24,994	4,977
Accrued interest payable and other liabilities	23,126	18,565
Total liabilities	1,769,369	1,021,778
Commitments and Contingencies (Note 8)
Shareholders' equity
Common stock, no par value; 40,000,000 shares authorized; 8,171,734 and 8,092,966 issued and outstanding at December 31, 2020 and December 31, 2019, respectively	107,948	106,427
Retained earnings	27,821	23,518
Accumulated other comprehensive income, net of taxes	641	311
Total shareholders' equity	136,410	130,256
Total liabilities and shareholders' equity	$ 1,905,779	$ 1,152,034

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for losses	$ 14,111	$ 11,075
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	8,171,734	8,092,966
Common stock, shares outstanding	8,171,734	8,092,966

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Interest income
Loans	$ 51,401	$ 46,915
Federal funds sold	685	999
Investment securities	933	1,164
Total interest income	53,019	49,078
Interest expense
Deposits	6,341	7,209
Borrowings and subordinated debt	1,761	931
Total interest expense	8,102	8,140
Net interest income	44,917	40,938
Provision for loan losses	4,880	2,326
Net interest income after provision for loan losses	40,037	38,612
Non-interest income
Service charges and other fees	2,949	3,003
Gain on the sale of SBA loans	0	253
Other	1,063	992
Total non-interest income	4,012	4,248
Non-interest expense
Salaries and benefits	22,122	20,674
Premises and equipment	4,755	3,502
Professional fees	3,558	2,585
Data processing	2,366	1,883
Other	5,008	4,579
Total non-interest expense	37,809	33,223
Income (loss) before provision for income taxes	6,240	9,637
Provision for income taxes	1,937	2,636
Net income	$ 4,303	$ 7,001
Earnings per common share
Basic	$ 0.53	$ 0.87
Diluted	$ 0.53	$ 0.86
Average common shares outstanding	8,131,325	8,048,793
Average common and equivalent shares outstanding	8,169,082	8,132,093

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 4,303	$ 7,001
Other comprehensive income
Unrealized gains on securities available for sale	400	440
Reclassification adjustment for realized loss on securities available for sale	70
Tax effect	(140)	(130)
Total other comprehensive income	330	310
Total comprehensive income	$ 4,633	$ 7,311

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance (in shares) at Dec. 31, 2018		7,993,908
Balance at Dec. 31, 2018	$ 121,079	$ 104,561	$ 16,517	$ 1
Stock awards issued and related compensation expense, shares		32,275
Stock awards issued and related compensation expense	1,252	$ 1,252
Stock options exercised , shares		66,783
Stock options exercised	614	$ 614
Net income	7,001		7,001
Other comprehensive income	310			310
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		71,001
Stock awards issued and related compensation expense	1,596	$ 1,596	0	0
Shares withheld to pay taxes on stock based compensation , shares		(17,369)
Shares withheld to pay taxes on stock based compensation	$ (322)	$ (322)	0	0
Stock options exercised , shares	25,136	25,136
Stock options exercised	$ 247	$ 247	0	0
Net income	4,303	0	4,303	0
Other comprehensive income	330	$ 0	0	330
Balance (in shares) at Dec. 31, 2020		8,171,734
Balance at Dec. 31, 2020	$ 136,410	$ 107,948	$ 27,821	$ 641

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 4,303	$ 7,001
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	4,880	2,326
Provision for deferred taxes	205	(585)
Depreciation	1,399	880
Deferred loan fees, net	2,270	25
Accretion on discount of purchased loans, net	(239)	(327)
Stock based compensation, net	1,274	1,252
Increase in cash surrender value of life insurance	(570)	(552)
Discount on retained portion of sold loans, net	(214)	32
Loss on sale of investment securities, net	70
Gain on sale of loans, net	0	(253)
Increase (decrease) in accrued interest receivable and other assets	(2,503)	1,249
Decrease in accrued interest payable and other liabilities	3,878	1,431
Net cash provided by operating activities	14,753	12,479
Cash flows from investing activities:
Purchase of investment securities	(44,075)
Proceeds from sales of investment securities	7,646
Proceeds from principal payments on investment securities	9,742	15,130
Purchase of loans	(49,127)
Net increase in loans	(371,921)	(106,804)
Purchase of low income tax credit investments	(1,402)	(2,437)
Purchase of Federal Home Loan Bank stock	(362)	(866)
Purchase of premises and equipment	(3,507)	(2,503)
Purchase of bank-owned life insurance policies	(832)	(3,958)
Net cash used for investing activities	(453,838)	(101,438)
Cash flows from financing activities:
Net increase in customer deposits	543,970	113,982
Proceeds from short term and overnight borrowings, net	179,043	10,000
Proceeds from issuance of subordinated debt	20,000
Proceeds from exercised stock options	247	614
Net cash provided by financing activities	743,260	124,596
Increase in cash and cash equivalents	304,175	35,637
Cash and cash equivalents, beginning of period	114,342	78,705
Cash and cash equivalents, end of period	418,517	114,342
Supplemental disclosure of cash flow information:
Transfer of SBA loans to held-for-sale from loan portfolio	0	2,878
Recording of right to use assets and operating lease liabilities	4,182	8,400
Cash paid during the year for:
Interest	8,008	7,912
Income taxes	$ 165	$ 2,620

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization California BanCorp (the “Company”), a California corporation headquartered in Oakland, California, is the bank holding company for its wholly-owned subsidiary California Bank of Commerce (the “Bank”), which offers a broad range of commercial banking services to closely held businesses and professionals located throughout Northern California. 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. The Company’s common stock trades on the Nasdaq Global Select marketplace under the symbol CALB. Basis of Presentation The consolidated financial statements are prepared in accordance with accounting policies and standards generally accepted in the United States of America (GAAP), as well as prevailing practices within the banking industry. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, California Bank of Commerce. All intercompany accounts have been eliminated. The Company has no significant business activities other than its investment in the Bank. 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 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 consolidated financial statements and the disclosures provided, and actual results could differ. The estimates utilized to determine the appropriate allowance for loan losses at December 31, 2020 may be materially different from actual results due to the COVID-19 COVID-19 Reclassifications Certain prior balances in the consolidated financial statements have been reclassified to conform to current year presentation. These reclassifications had no effect on prior year net income or shareholders’ equity. Specifically, we have modified how we disclose our loan segments to be purpose-based versus collateral-based (as previously disclosed) so that there is more transparency to our SBA loan portfolio which now consists largely of Paycheck Protection Program loans under the CARES Act . Subsequent Events Management has reviewed all events through the date these consolidated financial statements were filed with the SEC and concluded that no event required any adjustment to the balances presented. See Note 2 to the consolidated financial statements for additional information regarding the COVID-19 Cash and Cash Equivalents Cash and cash equivalents include cash on hand, amounts due from banks, amounts held at the Federal Reserve Bank, and Federal funds sold. The Company is required to maintain reserves against certain of the deposit accounts with the Federal Reserve Bank. Federal funds are generally sold and purchased for one-day Investment Securities Investment securities are classified into the following categories: • Available-for-sale • Held-to-maturity Management determines the appropriate classification of its investments at the time of purchase. Subsequent transfers between categories are accounted for at fair value . Interest earned on investment securities is reported in interest income, net of applicable adjustments for accretion of discounts and amortization of premiums. Premiums and discounts are amortized, or accreted, over the life of the related security as an adjustment to income using the level yield method adjusted for changes in principal prepayment speeds. Realized gains and non-interest An investment security is impaired when its carrying value is greater than its fair value. Investment securities that are impaired are evaluated on at least a quarterly basis and more frequently when economic or market conditions warrant such an evaluation to determine whether such a decline in their fair value is other than temporary. Management utilizes criteria such as the magnitude and duration of the decline, the intent and ability of the Company to retain its investment in the securities for a period of time sufficient to allow for an anticipated recovery in fair value, and the reasons underlying the decline to determine whether the loss in value is other than temporary. The term “other than temporary” is not intended to indicate that the decline is permanent, but indicates that the prospects for a near-term recovery of value is not necessarily favorable, or that there is a lack of evidence to support a realizable value equal to or greater than the carrying value of the investment. Once a decline in value is determined to be other than temporary, and management does not intend to sell the security or it is more likely than not that the Company will not be required to sell the security before recovery, only the portion of the impairment loss representing credit exposure is recognized as a charge to earnings, with the balance recognized as a charge to other comprehensive income. If management intends to sell the security or it is more likely than not that the Company will be required to sell the security before recovering its forecasted cost, the entire impairment loss is recognized as a charge to earnings. Loans Receivable Loans that management has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are reported at their outstanding unpaid principal balances net of unamortized deferred origination fees and costs, any unamortized premiums or discounts on purchased or acquired loans, and the allowance for loan losses. Loans acquired through a portfolio purchase, or through a business combination, are recorded at their fair value on the date of acquisition. Credit discounts or premiums are included in the determination of fair value; therefore, an allowance for loan losses is not required or recorded on the date of acquisition. Should the Company’s methodology for determining the allowance for loan losses indicate that any credit discount is no longer sufficient to cover probable losses inherent in the acquired loans, an appropriate increase to the allowance for loan losses will be established through a charge to the provision for loan losses. During the year ended December 31, 2020, the Company purchased two residential solar loan portfolios totaling $49.1 million, net of credit discounts. These portfolios are reflected in the category “other” within Note 4 of the consolidated financial statements. Interest on loans, including purchased or acquired loans, is accrued on the unpaid principal balance and is credited to income using the effective yield interest method. Deferred origination fees and costs, and the accretion (amortization) of any discount (premium) related to acquired loans, are amortized over the contractual life of the loan through interest income as an adjustment to the effective loan yield. Allowance for Loan Losses Credit risk is inherent in the business of extending loans to borrowers. Due to this risk, the Company must maintain an allowance for loan losses that management believes is adequate to absorb estimated probable losses on existing loans that may become uncollectible. This reserve is established through a provision for loan losses that is recorded to expense. Loans are charged against the reserve when management believes with certainty that the loan balance will not be collectible. Any cash received on previously charged-off re-evaluates The allowance for loan losses consists of specific and general reserves. The specific reserve relates to loans that are individually classified as impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings (TDRs) and also classified as impaired. When a loan is considered to be impaired, the amount of impairment is measured based on the fair value of the collateral (less costs to sell) if the loan is collateral dependent, or on the present value of expected future cash flows or values that are observable on the secondary market if the loan is not collateral dependent. The general reserve relates to all non-impaired Accrued Interest Receivable on Loans Interest receivable is only accrued if deemed collectible. It is the Company’s policy to place a loan on non-accrual non-accrual, non-accrual Loan Commitments and Related Financial Instruments In the ordinary course of business, the Company is party to financial instruments with off-balance Loan Sales and Servicing The Company has the ability to hold for sale the conditionally guaranteed portion of certain loans that are guaranteed by the Small Business Administration (“SBA loans”). At the time that the Company deems a loan to be held for sale, it is carried at the lower of aggregate cost or fair value. Net unrealized losses, if any, are recorded as a valuation allowance and charged to earnings. At December 31, 2020 and 2019, the Company did not have any loans held for sale. Gains or losses on SBA loans held for sale are recognized upon completion of the sale, based on the difference between the selling price and the carrying value of the related loan sold. SBA loans are generally sold with loan servicing retained by the Company. Servicing assets or liabilities are initially recorded at fair value and are subsequently amortized in proportion to, and over the period of the related net servicing income or expense. Servicing assets are periodically evaluated for impairment. Impairment is determined by stratifying the servicing rights based on interest rates and terms. The amount of the impairment recognized is the amount by which the servicing assets for a stratum exceed their fair value. Fair value is determined using prices for similar assets with similar characteristics, when available, or based upon discounted cash flows using market-based assumptions. As of December 31, 2020 and 2019, the Company had servicing assets of $275,000 and $362,000, respectively. Premises and Equipment The Company’s premises and equipment are carried at cost, less accumulated depreciation and amortization. Premises and equipment are depreciated or amortized using the straight-line method over the estimated useful lives of the related assets. The useful lives of furniture, fixtures and equipment are estimated to be 3 to 5 years. Leasehold improvements are amortized over the lesser of the respective lease term (including renewal periods that are reasonably assured) or their useful lives, which are generally 7 to 14 years. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation or amortization are removed from the accounts, and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is charged to expense as incurred. The Company evaluates premises and equipment for financial impairment as events or changes in circumstances indicate that the carrying amount of such assets may not be fully recoverable. Leases At inception, contracts are evaluated to determine whether the contract constitutes a lease agreement. For contracts that are determined to be an operating lease, the Company recognizes on the commencement date: (1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) a right-of-use Federal Home Loan Bank Stock As a member of the Federal Home Loan Bank of San Francisco, the Bank is required to maintain an investment in the capital stock of the Federal Home Loan Bank (the “FHLB”). The investment, which is reported in other assets, is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on the ultimate recovery of par value. No impairment has been recorded to date. Both cash and stock dividends from the FHLB are reported as income. Bank Owned Life Insurance The Company has purchased life insurance policies on certain current and former executives. Bank owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. Low Income Housing Tax Credits The Company accounts for low income housing tax credits and the related qualified affordable housing projects using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). As the Company disburses cash to satisfy capital calls, other assets are increased. Over time, as the tax credits and other tax benefits of the project are realized by the Company, the investment recorded in other assets is reduced using the proportional amortization method. The Company had investments in low income housing tax credits with gross commitments (including amounts funded and unfunded) of $13.6 million at December 31, 2020 and 2019. During 2020, the Company did not add any new investments and had $1.4 million in capital calls throughout the year. During 2019, the Company added a new investment with a commitment amount of $2.1 million and had $2.4 million in capital calls throughout the year. The investment balances outstanding were $8.6 million and $9.7 million at December 31, 2020 and 2019, respectively, and are reflected in other assets on the consolidated balance sheet. Total commitments remaining for future capital calls were $2.3 million and $3.7 million, at December 31, 2020 and 2019, respectively and are reflected in other liabilities on the consolidated balance sheet. For the years ended December 31, 2020 and 2019, the Company recognized tax benefits of $263,000 and $175,000, respectively, which were included within income tax expense on the statements of income. For tax purposes, the Company recorded tax credit and other benefits of $822,000 Other Real Estate Owned Other real estate owned consist of properties acquired through foreclosure. The Company values these properties at fair value less estimated costs to sell at the time it acquires them, which establishes the new cost basis. After it acquires them, the Company carries such properties at the lower of cost or fair value less estimated selling costs. If the Company records any income from the properties after acquiring them, it includes this amount in other non-interest non-interest Business Combinations The Company accounts for acquisitions of businesses using the acquisition method of accounting. Under the acquisition method, assets acquired and liabilities assumed are recorded at their estimated fair values at the date of acquisition. The Company utilizes various valuation techniques including discounted cash flow analyses to determine these fair values. Any excess of the purchase price over amounts allocated to the acquired assets, including identifiable intangible assets, and the liabilities assumed is recorded as goodwill. Goodwill and Other Intangibles Goodwill arises from business combinations and is generally determined as the excess of the fair value of the consideration transferred over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill determined to have an indefinite useful life is not amortized, but tested for impairment at least annually or more frequently if events and circumstances exist that indicate that a goodwill impairment test should be performed. If the carrying amount of the goodwill exceeds its fair value, an impairment loss is recognized in the amount of the excess, and the carrying value of the goodwill is reduced accordingly. The Company’s goodwill resulted from the acquisition of Pan Pacific Bank in 2015, and is the only intangible asset with an indefinite life on the consolidated balance sheet. The Company completed an impairment analysis of goodwill as of December 31, 2020 and determined there was no impairment. Other intangible assets consist of a core deposit intangible asset resulting from the 2015 acquisition. Core deposit intangible assets are initially measured at fair value and then amortized over their estimated useful life, in this case ten years on a straight-line basis. The Company considers the remaining useful life of its core deposit intangible asset each reporting period to determine whether events and circumstances warrant a revision to the remaining period of amortization. If the estimate of an intangible asset’s remaining life were to change, the carrying amount is amortized prospectively over the revised remaining useful life. The Company has not revised its estimate of the useful life of its core deposit intangible asset for the years ended December 31, 2020 and 2019. As of December 31, 2020 the Company’s core deposit intangible asset was valued at $204,000 with a remaining useful life of 5 years. Assuming no events or circumstances require a revision to the remaining useful life, the future amortization of the Company’s core deposit intangible asset will be approximately $41,000 per year through 2025. Income Taxes Deferred tax assets and liabilities are recognized for the tax consequences of temporary differences between the reported amount of assets and liabilities and their tax basis. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. A valuation allowance is recognized if, based on the weight of available evidence, management believes it is more likely than not that some portion or all of the deferred tax assets will not be realized. The Company considers all tax positions recognized in its consolidated financial statements for the likelihood of realization. When tax returns are filed, it is highly certain that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the consolidated financial statements in the period during which, based on all available evidence, management believes it is more likely than not that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the more-likely-than-not The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits in the accompanying balance sheet along with any associated interest and penalties that would be payable to the taxing authorities upon examination. Interest expense and penalties associated with unrecognized tax benefits, if any, are classified as income tax expense in the statement of income. Fair Value of Financial Instruments Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in Note 10. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect these estimates. Share-Based Compensation The Company issues awards of equity instruments, such as stock options and restricted stock units, to employees and certain non-employee 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. Anti-dilutive shares are not included in the calculation of diluted earnings per share. For the Years Ended (Dollars in thousands, except per share data) 2020 2019 Net income available to common shareholders $ 4,303 $ 7,001 Weighted average basic common shares outstanding 8,131,325 8,048,793 Add: dilutive potential common shares 37,757 83,300 Weighted average diluted common shares outstanding 8,169,082 8,132,093 Basic earnings per share $ 0.53 $ 0.87 Diluted earnings per share $ 0.53 $ 0.86 Related Party Transactions Principal stockholders, directors, and executive officers of the Company, their immediate family members, and companies they control or own more than a 10% interest in, are considered to be related parties. In the ordinary course of business, the Company engages in various related party transactions, including extending credit and bank service transactions. All related party transactions are subject to review and approval pursuant to the Company’s Related Party Transaction policy. Federal banking regulations require that any extension of credit to insiders and their related interests not be offered on terms more favorable than would be offered to non-related For the Years Ended (Dollars in thousands, except per share data) 2020 2019 Balance, beginning $ 4,972 $ 5,081 New loans — — Advances — — Repayments and other (57 ) (109 ) Balance, ending $ 4,915 $ 4,972 None of these loans are past due, on nonaccrual status or have been restructured to provide a reduction or deferral of interest or principal because of deterioration in the financial position of the borrower. There were no loans to a related party that were considered classified loans at December 31, 2020 and 2019. The interest income associated with these loans was $269,000 and $274,000 for the years ended December 31, 2020 and 2019, respectively. Loan commitments outstanding with related parties were $4.1million The Company also accepts deposits from related parties, which totaled $42.7 million and $25.4 million at December 31, 2020 and 2019, respectively. The interest expense associated with these deposits was $380,000 and $318,000 for the years ended December 31, 2020 and 2019, respectively. The Company leased its former Lafayette office from a company owned by a member of the Board of Directors. Rental payments under this agreement were $259,000 and $359,000 for the years ended December 31, 2020 and 2019, respectively. This agreement expired during the third quarter of 2020. Adoption of New 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 August 2018, the FASB issued guidance (“ASU 2018-13”) that eliminated, added and modified certain disclosure requirements for fair value measurements as part of its disclosure framework project. The guidance was effective for all entities for fiscal years beginning after December 15, 2019 and for interim periods within those fiscal years, but entities were permitted to early adopt either the entire standard or only the provisions that eliminate or modify the requirements. The adoption of this standard did not have a material impact on the Company’s operating results or financial condition. In June 2016, the FASB issued ASU 2016-13, held-to off-balance

Business Impact Of Covid-19

Business Impact Of Covid-19	12 Months Ended
	Dec. 31, 2020
Text Block [Abstract]
Business Impact Of Covid-19	2. BUSINESS IMPACT OF COVID-19 During 2020, the COVID-19 virus aggressively spread globally, including to all 50 states in the United States. The continuing COVID-19 outbreak, or any other epidemic that harms the global economy, U.S. economy, or the economies in which we operate could adversely affect our operations. While the spread of the COVID-19 virus has minimally impacted our operations as of December 31, 2020, it has caused significant economic disruption throughout the United States as state and local governments issued “shelter at home” orders along with the closing of non-essential businesses. The potential financial impact is unknown at this time. However, if these actions are sustained, it may adversely impact several industries within our geographic footprint and impair the ability of our customers to fulfill their contractual obligations to the Company. This could result in a material adverse effect on our business operations, asset valuations, financial condition, and results of operations. Material adverse impacts may include all or a combination of valuation impairments for investments, loans, and intangible assets. 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 coronavirus 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. As a result, the Company does recognize eligible COVID-19 loan modifications as TDRs. Additionally, loans qualifying for these modifications will be required to be reported as delinquent, nonaccrual, impaired or criticized solely as a result of a COVID-19 loan modification. However, management continues to evaluate these loans for performance criteria separate from their respective COVID-19 loan modification status. Through the date of this filing, the Company has not experienced any loan charge-offs caused by the economic impact from COVID-19. Management has evaluated events related to COVID-19 that have occurred subsequent to December 31, 2020 and has concluded there are no matters that would require recognition in the accompanying consolidated financial statements (see “Subsequent Events” below). Proactive Deferral Program: As a result of the novel coronavirus 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 • 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 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 As of December 31, 2020, loan balances totaling approximately $50.3 The following table reflects the concentration of loans funded through the Paycheck Protection Program Liquidity Facility (PPPLF) as of December 31, 2020. Number of Principal Number of Loans as a % of Principal Balance as a % of (Dollars in millions) PPP Loans Gross Loans PPP Loans Gross Loans Dental services 264 $ 37.1 42 % 13 % 12 % 3 % Contractors 95 124.8 15 % 5 % 41 % 9 % Other 273 144.4 43 % 14 % 47 % 11 % Total 632 $ 306.3 100 % 32 % 100 % 23 % 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 fourth quarter and year ended December 31, 2020: • 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 $ 2.2 million 5.0 million • The Company received $ 9.1 million 2.1 million 4.3 million • The Company deferred loan origination costs of approximately $ 2.5 million year-to-date 1.7 million year-to-date 602,000 1.3 million • The continued uncertainty regarding the severity and duration of the pandemic and related economic effects considered in our qualitative assessment of the allowance for loan losses resulted in a gross increase in the provision for the fourth quarter and year ended December 31, 2020 of approximately $ 228,000 3.5 COVID-19. Subsequent Events As of March 15, 2021, additional PPP loan balances totaling $64.3 million million, are in the process of completing loan forgiveness applications. 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 March 15, 2021, the Company has processed Goodwill The Company completed an impairment analysis of goodwill as of December 31, 2020 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 the triggering event of coronavirus COVID-19

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investment Securities	3. INVESTMENT SECURITIES The following table summarizes the amortized cost and estimated fair value of securities available for sale at December 31, 2020 and 2019. (Dollars in thousands) Amortized Gross Gross Estimated 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 At December 31, 2019: Mortgage backed securities $ 20,291 $ 436 $ (5 ) $ 20,722 Government agencies 7,824 9 — 7,833 Corporate bonds — — — — Total available for sale securities $ 28,115 $ 445 $ (5 ) $ 28,555 Net unrealized gains on available for sale investment securities totaling $910,000 and $440,000 were recorded, net of deferred tax assets, as accumulated other comprehensive income within shareholders’ equity at December 31, 2020 and 2019, respectively. The Company purchased 14 securities for $44.1 million and sold 6 available for sale securities for total proceeds of $7.6 million during the year ended December 31, 2020. The Company did not purchase or sell available for sale investment securities during the year ended December 31, 2019. The following table summarizes securities with unrealized losses at December 31, 2020 and 2019 aggregated by major security type and length of time in a continuous unrealized loss position. Less Than 12 Months More Than 12 Months Total (Dollars in thousands) Fair Unrealized Fair Unrealized Fair Unrealized 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 December 31, 2019: Mortgage backed securities $ 481 $ (5 ) $ — $ — $ 481 $ (5 ) Government agencies — — — — — — Corporate bonds — — — — — — Total available for sale securities $ 481 $ (5 ) $ — $ — $ 481 $ (5 ) 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. At December 31, 2019, the Company’s investment security portfolio consisted of 21 securities, one of which was 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 December 31, 2020 and 2019, respectively. The following table summarizes the scheduled maturities of available for sale investment securities as of December 31, 2020. December 31, 2020 (Dollars in thousands) Amortized Fair Available for sale securities: Less that one year $ — $ — One to five years 7,051 7,344 Five to ten years 5,250 5,294 Beyond ten years 11,923 11,850 Securities not due at a single maturity date 29,959 30,605 Total available for sale securities $ 54,183 $ 55,093 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 Loan Lo

Loans and Allowance For Loan Losses	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Loans and Allowance For Loan Losses	4. LOANS AND ALLOWANCE FOR LOAN LOSSES Outstanding loans as of December 31, 2020 and 2019 are summarized below. Certain loans have been pledged to secure borrowing arrangements (see Note 7). Additionally, SBA loans include loans funded under the Paycheck Protection Program under the CARES Act, which was enacted as a result of the COVID-19 pandemic (see Note 2). (Dollars in thousands) December 31, December 31, Commercial and industrial 414,548 389,746 Real estate—other 550,690 502,929 Real estate—construction and land 37,193 42,519 SBA 317,564 12,830 Other 49,075 1,628 Total loans, gross 1,369,070 949,652 Deferred loan origination costs, net 523 2,555 Allowance for loan losses (14,111 ) (11,075 ) Total loans, net 1,355,482 941,132 The following table reflects the loan portfolio allocated by management’s internal risk ratings at December 31, 2020 and 2019. (Dollars in thousands) Commercial Real Estate Real Estate SBA Other Total 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 As of December 31, 2019 Grade: Pass $ 378,327 $ 494,314 $ 40,731 $ 10,736 $ 1,628 $ 925,736 Special Mention 6,894 7,928 1,788 1,655 — 18,265 Substandard 4,525 687 — 439 — 5,651 Total $ 389,746 $ 502,929 $ 42,519 $ 12,830 $ 1,628 $ 949,652 The following table reflects an aging analysis of the loan portfolio by the time past due at December 31, 2020 and 2019. (Dollars in thousands) 30 Days 60 Days 90+ Days Non-Accrual Current Total 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 As of December 31, 2019 Commercial and industrial $ — $ 1,440 $ — $ 2,409 $ 385,897 $ 389,746 Real estate—other — — — — 502,929 502,929 Real estate—construction and land — — — — 42,519 42,519 SBA — — — 344 12,486 12,830 Other — — — — 1,628 1,628 Total loans, gross $ — $ 1,440 $ — $ 2,753 $ 945,459 $ 949,652 The following table reflects the impairment methodology applied to gross loans by portfolio segment and the related allowance for loan losses as of December 31, 2020 and 2019. (Dollars in thousands) Commercial Real Estate Real Estate SBA Other Total 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 gross 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 As of December 31, 2019 Gross loans: Loans individually evaluated for impairment $ 4,572 $ 687 $ — $ 344 $ — $ 5,603 Loans collectively evaluated for impairment 385,174 502,242 42,519 12,486 1,628 944,049 Total loans $ 389,746 $ 502,929 $ 42,519 $ 12,830 $ 1,628 $ 949,652 Allowance for loan losses: Loans individually evaluated for impairment $ 600 $ — $ — $ 50 $ — $ 650 Loans collectively evaluated for impairment 6,108 3,281 1,022 — 14 10,425 Total allowance for loan losses $ 6,708 $ 3,281 $ 1,022 $ 50 $ 14 $ 11,075 The following table reflects inf o (Dollars in thousands) Recorded Unpaid Related Average Interest 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 As of December 31, 2019 With no related allowance recorded: Commercial and industrial $ 1,846 $ 1,860 $ — $ 1,282 $ 68 Real estate—other $ 687 $ 687 $ — $ 700 $ 52 SBA $ 294 $ 294 $ — $ 1,723 $ — With an allowance recorded: Commercial and industrial $ 2,726 $ 4,623 $ 600 $ 4,620 $ 56 SBA $ 50 $ 200 $ 50 $ 203 $ 15 Total: Commercial and industrial $ 4,572 $ 6,483 $ 600 $ 5,902 $ 124 Real estate—other $ 687 $ 687 $ — $ 700 $ 52 SBA $ 344 $ 494 $ 50 $ 1,926 $ 15 The recorded investment in impaired loans in the tables above excludes accrued interest receivable and net deferred origination costs due to their immateriality. The following table reflects the changes in, and allocation of, the allowance for loan losses by portfolio segment for the years ended December 31, 2020 and 2019. (Dollars in thousands) Commercial Real Real Estate SBA Other Total Year ended December 31, 2020 Beginning balance $ 6,708 $ 3,281 $ 1,022 $ 50 $ 14 $ 11,075 Provision for loan losses 3,951 596 (341 ) 662 12 4,880 Charge-offs (1,868 ) — — (108 ) — (1,976 ) Recoveries 132 — — — — 132 Ending balance $ 8,923 $ 3,877 $ 681 $ 604 $ 26 $ 14,111 Year ended December 31, 2019 Beginning balance $ 5,401 $ 3,677 $ 1,524 $ 172 $ 26 $ 10,800 Provision for loan losses 3,220 (396 ) (502 ) 15 (11 ) 2,326 Charge-offs (1,951 ) — — (137 ) (1 ) (2,089 ) Recoveries 38 — — — — 38 Ending balance $ 6,708 $ 3,281 $ 1,022 $ 50 $ 14 $ 11,075 Interest forgone on nonaccrual loans was on Trouble d At 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. At December 31, 2019, the Company had a recorded investment of $722,000 and had allocated specific reserves totaling $12,000 related to loans with terms that had been modified in troubled debt restructurings. The Company had no commitments as of December 31, 2020 and 2019 to customers with outstanding loans that were classified as troubled debt restructurings. There were no new troubled debt restructurings during the years ended December 31, 2020 and 2019. The Company had no troubled debt restructurings with a subsequent payment default within twelve months following the modification during the three months and years ended December 31, 2020 and 2019. COVID-19 For additional information regarding the impact of COVID-19

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Premises and Equipment	5. PREMISES AND EQUIPMENT The following table reflects the Company’s premises and equipment as of the years ended December 31, 2020 and 2019. December 31, (Dollars in thousands) 2020 2019 Furniture, fixtures, and equipment $ 5,236 $ 5,192 Leashold improvements 6,637 3,172 11,873 8,364 Accumulated depreciation and amortization (6,095 ) (4,696 ) Total premises and equipment $ 5,778 $ 3,668 Depreciation and amortization included in occupancy and equipment expense totaled $1.4 million and

Deposits

Deposits	12 Months Ended
	Dec. 31, 2020
Deposits [Abstract]
Deposits	6. DEPOSITS The following table reflects the Company’s deposit portfolio for the years ended December 31, 2020 and 2019. December 31, (Dollars in thousands) 2020 2019 Demand noninterest- bearing $ 673,100 $ 387,267 Demand interest-bearing 34,869 25,178 Money market and savings 623,603 455,436 Certificates of deposit 200,634 120,355 Total deposits $ 1,532,206 $ 988,236 The Federal Deposit Insurance Corporation (FDIC) insures up to $250,000 per depositor per FDIC-insured bank. The Company, through its wholly owned subsidiary, had certificates of deposit accounts greater than $ 250,000 million and million million million million million million The following table reflects the aggregate annual maturities of the Company’s certificates o Amounts maturing during the year ended December 31, 2021 $ 137,741 2022 44,790 2023 18,103 2024 — 2025 — Total certificates of deposit $ 200,634

Borrowing Arrangements

Borrowing Arrangements	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Borrowing Arrangements	7. 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 December 31, 2020, amounts pledged and available borrowing capacity under such limits were approximately $458.7 million and $358.5 million, respectively. At December 31, 2019, amounts pledged and available borrowing capacity under such limits were approximately $193.7 million and $127.3 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 December 31, 2020, the PPPLF borrowing had an outstanding balance of $ 174.0 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 Bank’s credit limit varies according to its total assets and the amount and composition of the loan portfolio pledged as collateral. At December 31, 2020, amounts pledged and available borrowing capacity under such limits were approximately $129.3 million and $68.3 million, respectively. At December 31, 2019, amounts pledged and available borrowing capacity under such limits were approximately $188.8 million and $133.8 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 of $10.0 million remained outstanding at December 31, 2020 and 2019. In This FHLB term borrowing of $5.0 million remained outstanding at December 31, 2020. Under Federal Funds line of credit The Company maintains a revolving line of credit with a commitment of $3.0 million for a six month term at a rate of Prime plus 0.40%. At December 31, 2020 and 2019, no borrowings were outstanding under this line of credit. The Company entered into a three year borrowing arrangement with a correspondent bank on March 20, 2020 for $12.0 million. The note is secured by the Company’s investment in the Bank and has a fixed rate of 3.95%. There were no borrowings outstanding under this arrangement at December 31, 2020 . The Bank issued $5.0 million in subordinated debt on April 15, 2016. The subordinated debt has a fixed interest rate of 5.875% for the first 5 years. After the fifth year, the interest rate changes to a variable rate of prime plus 2.00%. The subordinated debt was recorded net of related issuance costs of $87,000. On both December 31, 2020 and 2019, the balance remained at $5.0 million, net of 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 t h The subordinated debt was recorded net of related issuance costs of $300,000. , net of issuance cost.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	8. COMMITMENTS AND CONTINGENT LIABILITES 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 December 31, 2020 and 2019, the Company had outstanding unfunded commitments for loans of approximately $491.1 million and $374.0 million, respectively. Unfunded loan commitment reserves, included in the allowance for loan losses, totaled $ 305,000 and $185,000 at December 31, 2020 and 2019, respectively. The outstanding unfunded commitments for loans at December 31, 2020 was comprised of fixed rate commitments of approximately $46.1 million and variable rate commitments of approximately $445.0 million. The following table reflects the interest rate and maturity ranges for the unfunded fixed rate loan commitments as of December 31, 2020. (Dollars in thousands) Due in Over One Over Total Unfunded fixed rate loan commitments: Interest rate less than or equal to 4.00% $ 3,547 $ 24,474 $ 6,088 $ 34,109 Interest rate between 4.00% and 5.00% 3,369 7,047 1,447 11,863 Interest rate greater than or equal to 5.00% — 150 — 150 Total unfunded fixed rate loan commitments $ 6,916 $ 31,671 $ 7,535 $ 46,122 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 December 31, 2020. (Dollars in thousands) December 31, Operating lease cost (cost resulting from lease payments) $ 2,390 Operating lease—operating cash flows (fixed payments) $ 2,406 Operating lease—ROU assets $ 8,319 Operating lease—liabilities $ 10,414 Weighted average lease term—operating leases 3.23 Weighted average discount rate—operating leases 2.58 % The following table reflects the minimum commitments under these non-cancellable Minimum commitments for the year ended December 31, 2021 $ 2,431 2022 2,441 2023 1,497 2024 1,456 2025 1,499 Thereafter 1,792 Total undiscounted cash flows 11,116 Discount on cash flows (702 ) Total lease liability $ 10,414 Rent expense included in premises and equipment expense totaled $2.4 million and $1.8 million for the years ended December 31, 2020 and 2019, respectively. 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 December 31, 2020, uninsured deposits at financial institutions were approximately $8.7 million. At December 31, 2019, uninsured deposits at financial institutions were approximately $4.0 million.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Tax	9. INCOME TAXES The following table reflects the federal and state components of the Company’s provision for income taxes for the years ended December 31, 2020 and 2019. For the Years Ended (Dollars in thousands) 2020 2019 Federal: Current $ 903 $ 2,094 Deferred 389 (261 ) Federal provision for income taxes 1,292 1,833 State: Current 829 1,127 Deferred (184 ) (324 ) State provision for income taxes 645 803 Provision for income taxes $ 1,937 $ 2,636 The Company’s reported amount of income tax expense differs from federal statutory income rate for the years ended December 31, 2020 and 2019 primarily due to California franchise taxes, low income housing credits and tax exempt income. The following table reflects a reconciliation of the effective tax rate for the years ended December 31, 2020 and 2019. For the Years Ended (Dollars in thousands) 2020 2019 Statutory federal income tax rate 21.0 % 21.0 % State income taxes, net of federal benefit 7.2 % 7.5 % Low income housing credits, net of investment losses 0.0 % -0.5 % Increase in cash surrender value of life insurance -2.0 % -1.2 % Share-based compensation 2.2 % 0.0 % Other, net 3.1 % 0.5 % Effective tax rate 31.5 % 27.3 % Deferred tax assets and liabilities result from the tax effects of temporary differences between the carrying amount of certain assets and liabilities for financial reporting purposes and their related amounts used for income tax reporting purposes. The following table reflects the Company’s deferred tax assets, net of deferred liabilities, included in other assets in the consolidated financial statements. December 31, (Dollars in thousands) 2020 2019 Deferred tax assets: Allowance for loan losses $ 4,172 $ 3,274 State tax deduction — 246 Lease liability 3,079 2,377 Accrued expenses 1,422 1,103 Organization costs 41 77 Share-based compensation 399 289 Deferred compensation 823 379 Net operating loss carryforwards 1,246 1,435 Loan discounts 63 133 Other 282 266 Total deferred tax assets 11,527 9,579 Deferred tax liabilities: Deferred loan origination costs (2,631 ) (1,834 ) Right of use asset (2,460 ) (1,925 ) Core deposit intangible (60 ) (72 ) Other (327 ) (208 ) Total deferred tax liabilities (5,478 ) (4,039 ) Net deferred tax assets $ 6,049 $ 5,540 As a result of the acquisition of Pan Pacific Bank in 2015, the Company has net operating loss carryforwards. Pursuant to Sections 382 of the Internal Revenue Code, annual use of net operating loss carryforwards may be limited in the event of a change in ownership. The net operating losses absorbed as a result of the acquisition are subject to Section 382 annual limitations in the amount of approximately $640,000 per year. At December 31, 2020 and 2019, the net operating loss carryforwards for Federal and California income tax reporting purposes totaled $4.2 million million , respectively, and will begin to expire at various dates from 2029 to 2035 if unused. For the tax years 2020 and 2019, the Company filed income tax returns in the U.S. Federal and various state jurisdictions. There are currently no pending U.S. Federal or state income tax or non-U.S. The Company is required to record a valuation allowance if it is more likely than not that some portion, or all, of the net deferred tax asset will not be realized. The Company evaluated both positive and negative evidence, including forecasts of future income, cumulative losses, applicable tax planning strategies, and assessments of current and future economic and business conditions and determined that a valuation allowance was not needed to reduce the net deferred tax asset as it is more likely than not that the results of future operations will generate sufficient taxable income to realize the recorded balance. As of December 31, 2020 and 2019, there were no unrecognized tax benefits or interest and penalties accrued by the Company.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	10. 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 December 31, 2020 and 2019 are as follows: Carrying Fair Value Measurements (Dollars in thousands) Level 1 Level 2 Level 3 Total 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 As of December 31, 2019 Financial assets: Cash and due from banks $ 114,342 $ 114,342 $ — $ — $ 114,342 Securities available for sale 28,555 — 28,555 — 28,555 Loans, net 941,132 — — 940,944 940,944 Accrued interest receivable 3,398 — 168 3,230 3,398 Financial liabilities: Deposits $ 988,236 $ 870,495 $ 121,136 $ — $ 991,631 Other borrowings 10,000 — — 10,032 10,032 Subordinated debt 4,977 — — 5,112 5,112 Accrued interest payable 400 — 326 74 400 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 December 31, 2020 and 2019 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. Subordinated Debt—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 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 $ — As of December 31, 2019 Investments available for sale: Mortgage backed securities $ 20,722 $ — $ 20,722 $ — Government agencies 7,833 — 7,833 — Corporate bonds — — — — Total assets measured at fair value on a recurring basis $ 28,555 $ — $ 28,555 $ — 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) Level 1 Level 2 Level 3 As of December 31, 2020 Impaired loans—SBA $ 689 $ — $ — $ 689 Total assets measured at fair value on a non-recurring $ 689 $ — $ — $ 689 As of December 31, 2019 Impaired loans—Commercial $ 2,474 $ — $ — $ 2,474 Impaired loans—Real estate other 705 705 Impaired loans—SBA 296 296 Total assets measured at fair value on a non-recurring $ 3,475 $ — $ — $ 3,475 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

Equity Incentive Plan

Equity Incentive Plan	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Equity incentive plan	11. EQUITY INCENTIVE PLAN Stock-Based Compensation In an effort to attract, retain and motivate eligible employees and non-employee non-employee On May 18, 2017, the Company’s shareholders approved the 2017 Equity Incentive Plan which supersedes the Equity Incentive Plan that was established in 2014. On August 6, 2020, the Company’s shareholders approved an amendment and restatement of the 2017 Equity Incentive Plan (as amended and restated, the “Amended 2017 Plan”). The Amended 2017 Plan increased the number of shares that may be granted under the plan from 420,000 shares to a maximum of 920,000 shares. The Amended 2017 Plan provides for the following types of stock-based awards: incentive stock options; nonqualified stock options; stock appreciation rights; restricted stock, restricted stock units, performance shares; and other stock-based awards. The amount, frequency, and terms of stock-based awards may vary based upon competitive practices, the Company’s operating results and government regulations. As of December 31, 2020, the Company has issued incentive stock options, restricted stock units, and other stock-based awards under the 2017 Amended Plan. Stock options issued under the Amended 2017 Plan may be granted to employees and non-employee Restricted stock and restricted stock units issued under the Amended 2017 Plan may be granted to employees and non-employee Other stock-based awards may be granted to employees and non-employee At the time the 2017 Equity Incentive Plan was adopted, the total authorized shares available for issuance under the 2014 Equity Incentive Plan (the “2014 Plan”) was 404,235 shares and the number of shares available for future grants was 39,123 shares. As the 2017 Equity Incentive Plan superseded the 2014 Plan, no further grants may be made under the 2014 Plan and, as such, the shares that were available for future grant under the 2014 Plan may no longer be awarded. As of December 31, 2020, there were 640,875 shares of outstanding awards under the Company’s stock-based compensation plans and 529,461 shares available for future grants under the Amended 2017 Plan. Total compensation cost that was charged against income pertaining to the 2014 Plan and the Amended 2017 Plan was $1.3 million for both of the years ended December 31, 2020 and 2019, respectively. Stock Option Awards The following table reflects a summary of the stock option activity under the 2014 Plan and the Amended 2017 Plan for the year ended December 31, 2020. Stock Option Awards Number of Weighted Stock option awards outstanding, December 31, 2019 435,533 $ 17.07 Granted 93,828 $ 14.37 Exercised (25,136 ) $ 9.83 Forfeited or expired (33,915 ) $ 19.33 Stock option awards outstanding, December 31, 2020 470,310 $ 16.70 The following table reflects the weighted remaining life and aggregate intrinsic value related to the stock options issued under the 2014 Plan and the Amended 2017 Plan at December 31, 2020. (Dollars in thousands) Number of Weighted Aggregate Stock option awards outstanding 469,956 7.00 $ 775 Stock option awards fully vested and expected to vest 260,251 8.42 $ 199 Stock option awards exercisable 202,100 5.16 $ 576 The following table reflects information related to stock options exercised and granted during the years ended December 31, 2020 and 2019. For the Years Ended (Dollars in thousands) 2020 2019 Options exercised: Intrinsic value $ 119 $ 678 Cash received $ 247 $ 614 Options granted: Weighted average fair value $ 6.30 $ 9.66 The fair value of each option grant is estimated on the date of the grant using the Black-Scholes option pricing model. The following table reflects the assumptions used by management in the Black-Scholes option pricing model for the years ended December 31, 2020 and 2019. For the Years Ended (Dollars in thousands) 2020 2019 Expected life 10 years 10 years Stock price volatility 28.9 % 31.1 % Risk free interest rate 1.2 % 1.9 % Dividend yield 0.0 % 0.0 % As of December 31, 2020, there was $1.8 million of total unrecognized compensation cost related to non-vested years and will be adjusted for subsequent changes related to forfeitures. Restricted Stock Units The following table reflects a summary of the restricted stock activity under the 2014 Plan and the Amended 2017 Plan for the year ended December 31, 2020. Non-vested Number of Weighted Non-vested 127,051 $ 20.59 Granted 74,175 $ 13.91 Vested (29,970 ) $ 20.83 Forfeited (691 ) $ 18.55 Non-vested 170,565 $ 17.65 As of December 31, 2020, there was $3.0 million of total unrecognized compensation cost related to non-vested Other Stock-Based Awards Stock awards totaling 19,156 shares were granted and issued during the year ended December 31, 2020. These stock awards were fully vested upon the date of the grant. The grant date fair value of these awards was included in the compensation cost that was charged against income pertaining to the Amended 2017 Plan.

Other Employee Benefit Plans

Other Employee Benefit Plans	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Other Employee Benefit Plans	12. OTHER EMPLOYEE BENEFIT PLANS Profit Sharing Plan In 2007, the Company adopted the California Bank of Commerce Profit Sharing 401(k) Plan. All full-time employees 21 years of age or older with 3 months of service are eligible to participate in the 401(k) Plan. Eligible employees may elect to make tax deferred contributions up to the maximum amount allowed by law. The Company may make additional contributions to the plan at the discretion of the Board of Directors. Bank contributions may vest at a rate of 20% annually for all employees. The Company made a fully vested contribution to the 401(k) Plan for the years ended December 31, 2020 and 2019 in the amount of $618,000 and $523,000, respectively. Salary Continuation and Retirement Plan The Board of Directors approved a salary continuation plan for certain executives. Under the plan, once executives reach age 65, the Company is obligated to provide executives with annual benefits after retirement. The estimated present value of these future benefits has been accrued from the effective date of the plan. The discount rate used to estimate the present value of future benefits was 3.50% and 4.25% for the years ended December 31, 2020 and 2019 respectively. The expense recognized under this plan for the years ended December 31, 2020 and 2019 totaled $835,000 and $457,000, respectively. Accrued compensation payable under the salary continuation plan totaled $2.1 million and $1.3 million at December 31, 2020 and 2019, respectively, and is included in accrued interest payable and other liabilities on the balance sheet.

Regulatory Capital Requirements

Regulatory Capital Requirements	12 Months Ended
	Dec. 31, 2020
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Regulatory Capital Requirements under Banking Regulations [Text Block]	13. REGULATORY CAPITAL REQUIREMENTS The Company is subject to various regulatory capital requirements administered by federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional, discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company must meet specific capital guidelines that involve quantitative measures of the Company’s assets, liabilities, and certain off-balance-sheet Quantitative measures established by regulation to ensure capital adequacy require the Company to maintain minimum amounts and ratios (as defined in the regulations) of Common Tier I Capital, Tier I Capital, and Total Capital to risk-weighted assets, and of Tier I capital to average assets. Management believes, as of December 31, 2020, that the Company meets all capital adequacy requirements to which they are subject. The following tables reflect the consolidated Company’s and the Bank’s capital adequacy ratios at December 31, 2020 and 2019 as well as the minimum capital ratios required to be deemed “adequately capitalized” and “well capitalized” under the regulatory framework. As of December 31, 2020 Actual Adequately Capitalized Well Capitalized (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Company Capital Ratios: Tier I Capital $ 128,140 7.49 % $ 68,413 4.00 % $ 85,517 5.00 % Tier I Common Capital $ 128,140 10.11 % $ 57,052 4.50 % $ 82,409 6.50 % Tier I Capital $ 128,140 10.11 % $ 76,070 6.00 % $ 101,427 8.00 % Total Capital $ 167,550 13.22 % $ 101,427 8.00 % $ 126,783 10.00 % Bank Capital Ratios: Tier I Capital $ 137,214 8.02 % $ 68,462 4.00 % $ 85,578 5.00 % Tier I Capital $ 137,214 10.80 % $ 57,166 4.50 % $ 82,573 6.50 % Tier I Common Capital $ 137,214 10.80 % $ 76,221 6.00 % $ 101,628 8.00 % Total Capital $ 156,624 12.33 % $ 101,628 8.00 % $ 127,035 10.00 % As of December 31, 2019 Actual Adequately Capitalized Well Capitalized (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Company Capital Ratios: Tier I Capital $ 121,536 10.64 % $ 45,690 4.00 % $ 57,113 5.00 % Tier I Capital $ 121,536 10.58 % $ 51,700 4.50 % $ 74,678 6.50 % Tier I Common Capital (to Risk Weighted Assets) $ 121,536 10.58 % $ 68,934 6.00 % $ 91,912 8.00 % Total Capital $ 137,773 11.99 % $ 91,912 8.00 % $ 114,890 10.00 % Bank Capital Ratios: Tier I Capital $ 119,297 10.44 % $ 45,708 4.00 % $ 57,158 5.00 % Tier I Capital $ 119,297 10.38 % $ 51,724 4.50 % $ 74,724 6.50 % Tier I Common Capital $ 119,297 10.38 % $ 68,966 6.00 % $ 91,968 8.00 % Total Capital $ 135,534 11.79 % $ 91,955 8.00 % $ 114,960 10.00 %

Parent Company only Financial I

Parent Company only Financial Information	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Parent Company only Financial Information	14. PARENT COMPANY ONLY FINANCIAL INFORMATION The following tables reflect summary parent company only financial information for the years ended December 31, 2020 and 2019. STATEMENTS OF FINANCIAL CONDITION (Dollar amounts in thousands) December 31, 2020 2019 Assets: Cash and due from banks $ 11,082 $ 2,614 Investment in bank subsidiary 143,945 128,165 Other assets 1,845 19 Total assets $ 156,872 $ 130,798 Liabilities: Junior subordinated debt $ 20,000 $ — Other Liabilities 462 543 Total liabilities 20,462 543 Shareholders’ equity 136,410 130,255 Total liabilities and shareholders’ equity $ 156,872 $ 130,798 STATEMENTS OF INCOME (Dollar amounts in thousands) December 31, 2020 2019 Interest expense $ (495 ) $ (51 ) Non-interest (1,025 ) (469 ) Income (loss) before provision for income taxes (1,520 ) (520 ) Provision for income taxes 371 154 Income (loss) before equity in undistributed subsidiary income (1,149 ) (366 ) Equity in undistributed subsidiary income 5,452 7,367 Net income $ 4,303 $ 7,001 STATEMENTS OF CASH FLOWS (Dollar amounts in thousands) December 31, 2020 2019 Cash flow from operating activities: Net income $ 4,303 $ 7,001 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed (earnings) of subsidiary income (5,452 ) (7,367 ) Change in other assets and other liabilities, net (630 ) (75 ) Net cash provided by (used for) operating activities (1,779 ) (441 ) Cash flow from investing activities: Investment in subsidiary (10,000 ) — Net cash provided by (used for) investing activities (10,000 ) — Cash flow from financing activities: Proceeds from issuance of subordinated debt 20,000 — Proceeds from exercised stock options 247 614 Net cash provided by (used for) financing activities 20,247 614 Increase in cash and cash equivalents 8,468 173 Cash and cash equivalents, beginning of period 2,614 2,441 Cash and cash equivalents, end of period $ 11,082 $ 2,614

Quarterly Financial Information

Quarterly Financial Information (Unaudited)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (Unaudited)	15. QUARTERLY FINANCIAL INFORMATION (UNAUDITED) The following tables summarize the unaudited condensed consolidated results of operations for each of the quarters during the years ended December 31, 2020 and 2019. Quarterly Operating Results—2020 (Dollars in thousands, except per share data) Q1 Q2 Q3 Q4 Interest income $ 12,303 $ 12,781 $ 13,188 $ 14,747 Interest expense 2,121 1,996 2,000 1,985 Net interest income 10,182 10,785 11,188 12,762 Provision for loan losses 400 2,930 850 700 Net interest income after provision for loan losses 9,782 7,855 10,338 12,062 Non-interest 1,290 777 1,028 917 Non-interest 10,407 6,440 10,545 10,417 Income before provision for income taxes 665 2,192 821 2,562 Provision for income taxes 192 642 326 777 Net income $ 473 $ 1,550 $ 495 $ 1,785 Basic earnings per common share $ 0.06 $ 0.19 $ 0.06 $ 0.22 Diluted earnings per common share $ 0.06 $ 0.19 $ 0.06 $ 0.22 Quarterly Operating Results—2019 (Dollars in thousands, except per share data) Q1 Q2 Q3 Q4 Interest income $ 11,494 $ 12,221 $ 12,557 $ 12,806 Interest expense 1,657 2,137 2,124 2,222 Net interest income 9,837 10,084 10,433 10,584 Provision for loan losses 581 246 500 999 Net interest income after provision for loan losses 9,256 9,838 9,933 9,585 Non-interest 863 976 1,261 1,148 Non-interest 7,615 7,382 8,399 9,827 Income before provision for income taxes 2,504 3,432 2,795 906 Provision for income taxes 636 882 791 327 Net income $ 1,868 $ 2,550 $ 2,004 $ 579 Basic earnings per common share $ 0.23 $ 0.32 $ 0.25 $ 0.07 Diluted earnings per common share $ 0.23 $ 0.31 $ 0.25 $ 0.07

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Organization	Organization California BanCorp (the “Company”), a California corporation headquartered in Oakland, California, is the bank holding company for its wholly-owned subsidiary California Bank of Commerce (the “Bank”), which offers a broad range of commercial banking services to closely held businesses and professionals located throughout Northern California. 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. The Company’s common stock trades on the Nasdaq Global Select marketplace under the symbol CALB.
Basis of Presentation	Basis of Presentation The consolidated financial statements are prepared in accordance with accounting policies and standards generally accepted in the United States of America (GAAP), as well as prevailing practices within the banking industry. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, California Bank of Commerce. All intercompany accounts have been eliminated. The Company has no significant business activities other than its investment in the Bank.
Use of Estimates	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 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 consolidated financial statements and the disclosures provided, and actual results could differ. The estimates utilized to determine the appropriate allowance for loan losses at December 31, 2020 may be materially different from actual results due to the COVID-19 COVID-19
Reclassifications	Reclassifications Certain prior balances in the consolidated financial statements have been reclassified to conform to current year presentation. These reclassifications had no effect on prior year net income or shareholders’ equity. Specifically, we have modified how we disclose our loan segments to be purpose-based versus collateral-based (as previously disclosed) so that there is more transparency to our SBA loan portfolio which now consists largely of Paycheck Protection Program loans under the CARES Act .
Subsequent Events	Subsequent Events Management has reviewed all events through the date these consolidated financial statements were filed with the SEC and concluded that no event required any adjustment to the balances presented. See Note 2 to the consolidated financial statements for additional information regarding the COVID-19
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include cash on hand, amounts due from banks, amounts held at the Federal Reserve Bank, and Federal funds sold. The Company is required to maintain reserves against certain of the deposit accounts with the Federal Reserve Bank. Federal funds are generally sold and purchased for one-day
Investment Securities	Investment Securities Investment securities are classified into the following categories: • Available-for-sale • Held-to-maturity Management determines the appropriate classification of its investments at the time of purchase. Subsequent transfers between categories are accounted for at fair value . Interest earned on investment securities is reported in interest income, net of applicable adjustments for accretion of discounts and amortization of premiums. Premiums and discounts are amortized, or accreted, over the life of the related security as an adjustment to income using the level yield method adjusted for changes in principal prepayment speeds. Realized gains and non-interest An investment security is impaired when its carrying value is greater than its fair value. Investment securities that are impaired are evaluated on at least a quarterly basis and more frequently when economic or market conditions warrant such an evaluation to determine whether such a decline in their fair value is other than temporary. Management utilizes criteria such as the magnitude and duration of the decline, the intent and ability of the Company to retain its investment in the securities for a period of time sufficient to allow for an anticipated recovery in fair value, and the reasons underlying the decline to determine whether the loss in value is other than temporary. The term “other than temporary” is not intended to indicate that the decline is permanent, but indicates that the prospects for a near-term recovery of value is not necessarily favorable, or that there is a lack of evidence to support a realizable value equal to or greater than the carrying value of the investment. Once a decline in value is determined to be other than temporary, and management does not intend to sell the security or it is more likely than not that the Company will not be required to sell the security before recovery, only the portion of the impairment loss representing credit exposure is recognized as a charge to earnings, with the balance recognized as a charge to other comprehensive income. If management intends to sell the security or it is more likely than not that the Company will be required to sell the security before recovering its forecasted cost, the entire impairment loss is recognized as a charge to earnings.
Loans Receivable	Loans Receivable Loans that management has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are reported at their outstanding unpaid principal balances net of unamortized deferred origination fees and costs, any unamortized premiums or discounts on purchased or acquired loans, and the allowance for loan losses. Loans acquired through a portfolio purchase, or through a business combination, are recorded at their fair value on the date of acquisition. Credit discounts or premiums are included in the determination of fair value; therefore, an allowance for loan losses is not required or recorded on the date of acquisition. Should the Company’s methodology for determining the allowance for loan losses indicate that any credit discount is no longer sufficient to cover probable losses inherent in the acquired loans, an appropriate increase to the allowance for loan losses will be established through a charge to the provision for loan losses. During the year ended December 31, 2020, the Company purchased two residential solar loan portfolios totaling $49.1 million, net of credit discounts. These portfolios are reflected in the category “other” within Note 4 of the consolidated financial statements. Interest on loans, including purchased or acquired loans, is accrued on the unpaid principal balance and is credited to income using the effective yield interest method. Deferred origination fees and costs, and the accretion (amortization) of any discount (premium) related to acquired loans, are amortized over the contractual life of the loan through interest income as an adjustment to the effective loan yield.
Allowance for Loan Losses	Allowance for Loan Losses Credit risk is inherent in the business of extending loans to borrowers. Due to this risk, the Company must maintain an allowance for loan losses that management believes is adequate to absorb estimated probable losses on existing loans that may become uncollectible. This reserve is established through a provision for loan losses that is recorded to expense. Loans are charged against the reserve when management believes with certainty that the loan balance will not be collectible. Any cash received on previously charged-off re-evaluates The allowance for loan losses consists of specific and general reserves. The specific reserve relates to loans that are individually classified as impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings (TDRs) and also classified as impaired. When a loan is considered to be impaired, the amount of impairment is measured based on the fair value of the collateral (less costs to sell) if the loan is collateral dependent, or on the present value of expected future cash flows or values that are observable on the secondary market if the loan is not collateral dependent. The general reserve relates to all non-impaired
Accrued Interest Receivable on Loans	Accrued Interest Receivable on Loans Interest receivable is only accrued if deemed collectible. It is the Company’s policy to place a loan on non-accrual non-accrual, non-accrual
Loan Commitments and Related Financial Instruments	Loan Commitments and Related Financial Instruments In the ordinary course of business, the Company is party to financial instruments with off-balance
Loan Sales and Servicing	Loan Sales and Servicing The Company has the ability to hold for sale the conditionally guaranteed portion of certain loans that are guaranteed by the Small Business Administration (“SBA loans”). At the time that the Company deems a loan to be held for sale, it is carried at the lower of aggregate cost or fair value. Net unrealized losses, if any, are recorded as a valuation allowance and charged to earnings. At December 31, 2020 and 2019, the Company did not have any loans held for sale. Gains or losses on SBA loans held for sale are recognized upon completion of the sale, based on the difference between the selling price and the carrying value of the related loan sold. SBA loans are generally sold with loan servicing retained by the Company. Servicing assets or liabilities are initially recorded at fair value and are subsequently amortized in proportion to, and over the period of the related net servicing income or expense. Servicing assets are periodically evaluated for impairment. Impairment is determined by stratifying the servicing rights based on interest rates and terms. The amount of the impairment recognized is the amount by which the servicing assets for a stratum exceed their fair value. Fair value is determined using prices for similar assets with similar characteristics, when available, or based upon discounted cash flows using market-based assumptions. As of December 31, 2020 and 2019, the Company had servicing assets of $275,000 and $362,000, respectively.
Premises and Equipment	Premises and Equipment The Company’s premises and equipment are carried at cost, less accumulated depreciation and amortization. Premises and equipment are depreciated or amortized using the straight-line method over the estimated useful lives of the related assets. The useful lives of furniture, fixtures and equipment are estimated to be 3 to 5 years. Leasehold improvements are amortized over the lesser of the respective lease term (including renewal periods that are reasonably assured) or their useful lives, which are generally 7 to 14 years. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation or amortization are removed from the accounts, and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is charged to expense as incurred. The Company evaluates premises and equipment for financial impairment as events or changes in circumstances indicate that the carrying amount of such assets may not be fully recoverable.
Leases	Leases At inception, contracts are evaluated to determine whether the contract constitutes a lease agreement. For contracts that are determined to be an operating lease, the Company recognizes on the commencement date: (1) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) a right-of-use
Federal Home Loan Bank Stock	Federal Home Loan Bank Stock As a member of the Federal Home Loan Bank of San Francisco, the Bank is required to maintain an investment in the capital stock of the Federal Home Loan Bank (the “FHLB”). The investment, which is reported in other assets, is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on the ultimate recovery of par value. No impairment has been recorded to date. Both cash and stock dividends from the FHLB are reported as income.
Bank Owned Life Insurance	Bank Owned Life Insurance The Company has purchased life insurance policies on certain current and former executives. Bank owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement.
Low Income Housing Tax Credits	Low Income Housing Tax Credits The Company accounts for low income housing tax credits and the related qualified affordable housing projects using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). As the Company disburses cash to satisfy capital calls, other assets are increased. Over time, as the tax credits and other tax benefits of the project are realized by the Company, the investment recorded in other assets is reduced using the proportional amortization method. The Company had investments in low income housing tax credits with gross commitments (including amounts funded and unfunded) of $13.6 million at December 31, 2020 and 2019. During 2020, the Company did not add any new investments and had $1.4 million in capital calls throughout the year. During 2019, the Company added a new investment with a commitment amount of $2.1 million and had $2.4 million in capital calls throughout the year. The investment balances outstanding were $8.6 million and $9.7 million at December 31, 2020 and 2019, respectively, and are reflected in other assets on the consolidated balance sheet. Total commitments remaining for future capital calls were $2.3 million and $3.7 million, at December 31, 2020 and 2019, respectively and are reflected in other liabilities on the consolidated balance sheet. For the years ended December 31, 2020 and 2019, the Company recognized tax benefits of $263,000 and $175,000, respectively, which were included within income tax expense on the statements of income. For tax purposes, the Company recorded tax credit and other benefits of $822,000
Other Real Estate Owned	Other Real Estate Owned Other real estate owned consist of properties acquired through foreclosure. The Company values these properties at fair value less estimated costs to sell at the time it acquires them, which establishes the new cost basis. After it acquires them, the Company carries such properties at the lower of cost or fair value less estimated selling costs. If the Company records any income from the properties after acquiring them, it includes this amount in other non-interest non-interest
Business Combinations	Business Combinations The Company accounts for acquisitions of businesses using the acquisition method of accounting. Under the acquisition method, assets acquired and liabilities assumed are recorded at their estimated fair values at the date of acquisition. The Company utilizes various valuation techniques including discounted cash flow analyses to determine these fair values. Any excess of the purchase price over amounts allocated to the acquired assets, including identifiable intangible assets, and the liabilities assumed is recorded as goodwill.
Goodwill and Other Intangibles	Goodwill and Other Intangibles Goodwill arises from business combinations and is generally determined as the excess of the fair value of the consideration transferred over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill determined to have an indefinite useful life is not amortized, but tested for impairment at least annually or more frequently if events and circumstances exist that indicate that a goodwill impairment test should be performed. If the carrying amount of the goodwill exceeds its fair value, an impairment loss is recognized in the amount of the excess, and the carrying value of the goodwill is reduced accordingly. The Company’s goodwill resulted from the acquisition of Pan Pacific Bank in 2015, and is the only intangible asset with an indefinite life on the consolidated balance sheet. The Company completed an impairment analysis of goodwill as of December 31, 2020 and determined there was no impairment. Other intangible assets consist of a core deposit intangible asset resulting from the 2015 acquisition. Core deposit intangible assets are initially measured at fair value and then amortized over their estimated useful life, in this case ten years on a straight-line basis. The Company considers the remaining useful life of its core deposit intangible asset each reporting period to determine whether events and circumstances warrant a revision to the remaining period of amortization. If the estimate of an intangible asset’s remaining life were to change, the carrying amount is amortized prospectively over the revised remaining useful life. The Company has not revised its estimate of the useful life of its core deposit intangible asset for the years ended December 31, 2020 and 2019. As of December 31, 2020 the Company’s core deposit intangible asset was valued at $204,000 with a remaining useful life of 5 years. Assuming no events or circumstances require a revision to the remaining useful life, the future amortization of the Company’s core deposit intangible asset will be approximately $41,000 per year through 2025.
Income Taxes	Income Taxes Deferred tax assets and liabilities are recognized for the tax consequences of temporary differences between the reported amount of assets and liabilities and their tax basis. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. A valuation allowance is recognized if, based on the weight of available evidence, management believes it is more likely than not that some portion or all of the deferred tax assets will not be realized. The Company considers all tax positions recognized in its consolidated financial statements for the likelihood of realization. When tax returns are filed, it is highly certain that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the consolidated financial statements in the period during which, based on all available evidence, management believes it is more likely than not that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the more-likely-than-not The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits in the accompanying balance sheet along with any associated interest and penalties that would be payable to the taxing authorities upon examination. Interest expense and penalties associated with unrecognized tax benefits, if any, are classified as income tax expense in the statement of income.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in Note 10. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect these estimates.
Share-Based Compensation	Share-Based Compensation The Company issues awards of equity instruments, such as stock options and restricted stock units, to employees and certain non-employee
Earnings Per Share ("EPS")	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. Anti-dilutive shares are not included in the calculation of diluted earnings per share. For the Years Ended (Dollars in thousands, except per share data) 2020 2019 Net income available to common shareholders $ 4,303 $ 7,001 Weighted average basic common shares outstanding 8,131,325 8,048,793 Add: dilutive potential common shares 37,757 83,300 Weighted average diluted common shares outstanding 8,169,082 8,132,093 Basic earnings per share $ 0.53 $ 0.87 Diluted earnings per share $ 0.53 $ 0.86
Related Party Transactions	Related Party Transactions Principal stockholders, directors, and executive officers of the Company, their immediate family members, and companies they control or own more than a 10% interest in, are considered to be related parties. In the ordinary course of business, the Company engages in various related party transactions, including extending credit and bank service transactions. All related party transactions are subject to review and approval pursuant to the Company’s Related Party Transaction policy. Federal banking regulations require that any extension of credit to insiders and their related interests not be offered on terms more favorable than would be offered to non-related For the Years Ended (Dollars in thousands, except per share data) 2020 2019 Balance, beginning $ 4,972 $ 5,081 New loans — — Advances — — Repayments and other (57 ) (109 ) Balance, ending $ 4,915 $ 4,972 None of these loans are past due, on nonaccrual status or have been restructured to provide a reduction or deferral of interest or principal because of deterioration in the financial position of the borrower. There were no loans to a related party that were considered classified loans at December 31, 2020 and 2019. The interest income associated with these loans was $269,000 and $274,000 for the years ended December 31, 2020 and 2019, respectively. Loan commitments outstanding with related parties were $4.1million The Company also accepts deposits from related parties, which totaled $42.7 million and $25.4 million at December 31, 2020 and 2019, respectively. The interest expense associated with these deposits was $380,000 and $318,000 for the years ended December 31, 2020 and 2019, respectively. The Company leased its former Lafayette office from a company owned by a member of the Board of Directors. Rental payments under this agreement were $259,000 and $359,000 for the years ended December 31, 2020 and 2019, respectively. This agreement expired during the third quarter of 2020.
Adoption of New Accounting Standards	Adoption of New 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 August 2018, the FASB issued guidance (“ASU 2018-13”) that eliminated, added and modified certain disclosure requirements for fair value measurements as part of its disclosure framework project. The guidance was effective for all entities for fiscal years beginning after December 15, 2019 and for interim periods within those fiscal years, but entities were permitted to early adopt either the entire standard or only the provisions that eliminate or modify the requirements. The adoption of this standard did not have a material impact on the Company’s operating results or financial condition. In June 2016, the FASB issued ASU 2016-13, held-to off-balance

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Earnings Per Share, Basic and Diluted	For the Years Ended (Dollars in thousands, except per share data) 2020 2019 Net income available to common shareholders $ 4,303 $ 7,001 Weighted average basic common shares outstanding 8,131,325 8,048,793 Add: dilutive potential common shares 37,757 83,300 Weighted average diluted common shares outstanding 8,169,082 8,132,093 Basic earnings per share $ 0.53 $ 0.87 Diluted earnings per share $ 0.53 $ 0.86
Summary Of Federal Home Loan Activities For The Period	The following table summarizes the aggregate activity in such loans for the periods indicated: For the Years Ended (Dollars in thousands, except per share data) 2020 2019 Balance, beginning $ 4,972 $ 5,081 New loans — — Advances — — Repayments and other (57 ) (109 ) Balance, ending $ 4,915 $ 4,972

Business Impact Of Covid-19 (Ta

Business Impact Of Covid-19 (Tables)	12 Months Ended
	Dec. 31, 2020
Text Block [Abstract]
Schedule of loans funded through PPPLF	The following table reflects the concentration of loans funded through the Paycheck Protection Program Liquidity Facility (PPPLF) as of December 31, 2020. Number of Principal Number of Loans as a % of Principal Balance as a % of (Dollars in millions) PPP Loans Gross Loans PPP Loans Gross Loans Dental services 264 $ 37.1 42 % 13 % 12 % 3 % Contractors 95 124.8 15 % 5 % 41 % 9 % Other 273 144.4 43 % 14 % 47 % 11 % Total 632 $ 306.3 100 % 32 % 100 % 23 %

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2020
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 December 31, 2020 and 2019. (Dollars in thousands) Amortized Gross Gross Estimated 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 At December 31, 2019: Mortgage backed securities $ 20,291 $ 436 $ (5 ) $ 20,722 Government agencies 7,824 9 — 7,833 Corporate bonds — — — — Total available for sale securities $ 28,115 $ 445 $ (5 ) $ 28,555
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 December 31, 2020 and 2019 aggregated by major security type and length of time in a continuous unrealized loss position. Less Than 12 Months More Than 12 Months Total (Dollars in thousands) Fair Unrealized Fair Unrealized Fair Unrealized 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 December 31, 2019: Mortgage backed securities $ 481 $ (5 ) $ — $ — $ 481 $ (5 ) Government agencies — — — — — — Corporate bonds — — — — — — Total available for sale securities $ 481 $ (5 ) $ — $ — $ 481 $ (5 )
Summary of maturities available for sale investment securities	The following table summarizes the scheduled maturities of available for sale investment securities as of December 31, 2020. December 31, 2020 (Dollars in thousands) Amortized Fair Available for sale securities: Less that one year $ — $ — One to five years 7,051 7,344 Five to ten years 5,250 5,294 Beyond ten years 11,923 11,850 Securities not due at a single maturity date 29,959 30,605 Total available for sale securities $ 54,183 $ 55,093

Loans and Allowance For Loan _2

Loans and Allowance For Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Summary of Outstanding Loans	Outstanding loans as of December 31, 2020 and 2019 are summarized below. Certain loans have been pledged to secure borrowing arrangements (see Note 7). Additionally, SBA loans include loans funded under the Paycheck Protection Program under the CARES Act, which was enacted as a result of the COVID-19 pandemic (see Note 2). (Dollars in thousands) December 31, December 31, Commercial and industrial 414,548 389,746 Real estate—other 550,690 502,929 Real estate—construction and land 37,193 42,519 SBA 317,564 12,830 Other 49,075 1,628 Total loans, gross 1,369,070 949,652 Deferred loan origination costs, net 523 2,555 Allowance for loan losses (14,111 ) (11,075 ) Total loans, net 1,355,482 941,132
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 loan losses as of December 31, 2020 and 2019. (Dollars in thousands) Commercial Real Estate Real Estate SBA Other Total 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 gross 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 As of December 31, 2019 Gross loans: Loans individually evaluated for impairment $ 4,572 $ 687 $ — $ 344 $ — $ 5,603 Loans collectively evaluated for impairment 385,174 502,242 42,519 12,486 1,628 944,049 Total loans $ 389,746 $ 502,929 $ 42,519 $ 12,830 $ 1,628 $ 949,652 Allowance for loan losses: Loans individually evaluated for impairment $ 600 $ — $ — $ 50 $ — $ 650 Loans collectively evaluated for impairment 6,108 3,281 1,022 — 14 10,425 Total allowance for loan losses $ 6,708 $ 3,281 $ 1,022 $ 50 $ 14 $ 11,075
Summary of Allowance for Loan Losses	The following table reflects the changes in, and allocation of, the allowance for loan losses by portfolio segment for the years ended December 31, 2020 and 2019. (Dollars in thousands) Commercial Real Real Estate SBA Other Total Year ended December 31, 2020 Beginning balance $ 6,708 $ 3,281 $ 1,022 $ 50 $ 14 $ 11,075 Provision for loan losses 3,951 596 (341 ) 662 12 4,880 Charge-offs (1,868 ) — — (108 ) — (1,976 ) Recoveries 132 — — — — 132 Ending balance $ 8,923 $ 3,877 $ 681 $ 604 $ 26 $ 14,111 Year ended December 31, 2019 Beginning balance $ 5,401 $ 3,677 $ 1,524 $ 172 $ 26 $ 10,800 Provision for loan losses 3,220 (396 ) (502 ) 15 (11 ) 2,326 Charge-offs (1,951 ) — — (137 ) (1 ) (2,089 ) Recoveries 38 — — — — 38 Ending balance $ 6,708 $ 3,281 $ 1,022 $ 50 $ 14 $ 11,075
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 December 31, 2020 and 2019. (Dollars in thousands) Commercial Real Estate Real Estate SBA Other Total 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 As of December 31, 2019 Grade: Pass $ 378,327 $ 494,314 $ 40,731 $ 10,736 $ 1,628 $ 925,736 Special Mention 6,894 7,928 1,788 1,655 — 18,265 Substandard 4,525 687 — 439 — 5,651 Total $ 389,746 $ 502,929 $ 42,519 $ 12,830 $ 1,628 $ 949,652
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 December 31, 2020 and 2019. (Dollars in thousands) 30 Days 60 Days 90+ Days Non-Accrual Current Total 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 As of December 31, 2019 Commercial and industrial $ — $ 1,440 $ — $ 2,409 $ 385,897 $ 389,746 Real estate—other — — — — 502,929 502,929 Real estate—construction and land — — — — 42,519 42,519 SBA — — — 344 12,486 12,830 Other — — — — 1,628 1,628 Total loans, gross $ — $ 1,440 $ — $ 2,753 $ 945,459 $ 949,652
Summary of Information Related to Impaired Loans	The following table reflects inf o (Dollars in thousands) Recorded Unpaid Related Average Interest 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 As of December 31, 2019 With no related allowance recorded: Commercial and industrial $ 1,846 $ 1,860 $ — $ 1,282 $ 68 Real estate—other $ 687 $ 687 $ — $ 700 $ 52 SBA $ 294 $ 294 $ — $ 1,723 $ — With an allowance recorded: Commercial and industrial $ 2,726 $ 4,623 $ 600 $ 4,620 $ 56 SBA $ 50 $ 200 $ 50 $ 203 $ 15 Total: Commercial and industrial $ 4,572 $ 6,483 $ 600 $ 5,902 $ 124 Real estate—other $ 687 $ 687 $ — $ 700 $ 52 SBA $ 344 $ 494 $ 50 $ 1,926 $ 15

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Schedule of Premises and Equipment	The following table reflects the Company’s premises and equipment as of the years ended December 31, 2020 and 2019. December 31, (Dollars in thousands) 2020 2019 Furniture, fixtures, and equipment $ 5,236 $ 5,192 Leashold improvements 6,637 3,172 11,873 8,364 Accumulated depreciation and amortization (6,095 ) (4,696 ) Total premises and equipment $ 5,778 $ 3,668

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2020
Deposits [Abstract]
Summary of Composition of Deposit Portfolio	The following table reflects the Company’s deposit portfolio for the years ended December 31, 2020 and 2019. December 31, (Dollars in thousands) 2020 2019 Demand noninterest- bearing $ 673,100 $ 387,267 Demand interest-bearing 34,869 25,178 Money market and savings 623,603 455,436 Certificates of deposit 200,634 120,355 Total deposits $ 1,532,206 $ 988,236
Scheduled Maturities of Certificates of Deposits	The following table reflects the aggregate annual maturities of the Company’s certificates o Amounts maturing during the year ended December 31, 2021 $ 137,741 2022 44,790 2023 18,103 2024 — 2025 — Total certificates of deposit $ 200,634

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Summary of Unfunded Fixed Rate Loan Commitments	The following table reflects the interest rate and maturity ranges for the unfunded fixed rate loan commitments as of December 31, 2020. (Dollars in thousands) Due in Over One Over Total Unfunded fixed rate loan commitments: Interest rate less than or equal to 4.00% $ 3,547 $ 24,474 $ 6,088 $ 34,109 Interest rate between 4.00% and 5.00% 3,369 7,047 1,447 11,863 Interest rate greater than or equal to 5.00% — 150 — 150 Total unfunded fixed rate loan commitments $ 6,916 $ 31,671 $ 7,535 $ 46,122
Summary of Quantitative Information About Operating Leases	The following table reflects the quantitative information for the Company’s leases at December 31, 2020. (Dollars in thousands) December 31, Operating lease cost (cost resulting from lease payments) $ 2,390 Operating lease—operating cash flows (fixed payments) $ 2,406 Operating lease—ROU assets $ 8,319 Operating lease—liabilities $ 10,414 Weighted average lease term—operating leases 3.23 Weighted average discount rate—operating leases 2.58 %
Summary of Lessee, Operating Lease	Minimum commitments for the year ended December 31, 2021 $ 2,431 2022 2,441 2023 1,497 2024 1,456 2025 1,499 Thereafter 1,792 Total undiscounted cash flows 11,116 Discount on cash flows (702 ) Total lease liability $ 10,414

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Summary of federal and state components of the Company's provision for income taxes	The following table reflects the federal and state components of the Company’s provision for income taxes for the years ended December 31, 2020 and 2019. For the Years Ended (Dollars in thousands) 2020 2019 Federal: Current $ 903 $ 2,094 Deferred 389 (261 ) Federal provision for income taxes 1,292 1,833 State: Current 829 1,127 Deferred (184 ) (324 ) State provision for income taxes 645 803 Provision for income taxes $ 1,937 $ 2,636
Summary of reconciliation of the effective tax rate	The following table reflects a reconciliation of the effective tax rate for the years ended December 31, 2020 and 2019. For the Years Ended (Dollars in thousands) 2020 2019 Statutory federal income tax rate 21.0 % 21.0 % State income taxes, net of federal benefit 7.2 % 7.5 % Low income housing credits, net of investment losses 0.0 % -0.5 % Increase in cash surrender value of life insurance -2.0 % -1.2 % Share-based compensation 2.2 % 0.0 % Other, net 3.1 % 0.5 % Effective tax rate 31.5 % 27.3 %
Summary of Company's deferred tax assets, net of deferred liabilities, included in other assets in the consolidated financial statements	The following table reflects the Company’s deferred tax assets, net of deferred liabilities, included in other assets in the consolidated financial statements. December 31, (Dollars in thousands) 2020 2019 Deferred tax assets: Allowance for loan losses $ 4,172 $ 3,274 State tax deduction — 246 Lease liability 3,079 2,377 Accrued expenses 1,422 1,103 Organization costs 41 77 Share-based compensation 399 289 Deferred compensation 823 379 Net operating loss carryforwards 1,246 1,435 Loan discounts 63 133 Other 282 266 Total deferred tax assets 11,527 9,579 Deferred tax liabilities: Deferred loan origination costs (2,631 ) (1,834 ) Right of use asset (2,460 ) (1,925 ) Core deposit intangible (60 ) (72 ) Other (327 ) (208 ) Total deferred tax liabilities (5,478 ) (4,039 ) Net deferred tax assets $ 6,049 $ 5,540

Regulatory Capital Requiremen_2

Regulatory Capital Requirements - (Tables)	12 Months Ended
	Dec. 31, 2020
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Regulatory Capital Amounts and Ratios for Company and Bank	The following tables reflect the consolidated Company’s and the Bank’s capital adequacy ratios at December 31, 2020 and 2019 as well as the minimum capital ratios required to be deemed “adequately capitalized” and “well capitalized” under the regulatory framework. As of December 31, 2020 Actual Adequately Capitalized Well Capitalized (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Company Capital Ratios: Tier I Capital $ 128,140 7.49 % $ 68,413 4.00 % $ 85,517 5.00 % Tier I Common Capital $ 128,140 10.11 % $ 57,052 4.50 % $ 82,409 6.50 % Tier I Capital $ 128,140 10.11 % $ 76,070 6.00 % $ 101,427 8.00 % Total Capital $ 167,550 13.22 % $ 101,427 8.00 % $ 126,783 10.00 % Bank Capital Ratios: Tier I Capital $ 137,214 8.02 % $ 68,462 4.00 % $ 85,578 5.00 % Tier I Capital $ 137,214 10.80 % $ 57,166 4.50 % $ 82,573 6.50 % Tier I Common Capital $ 137,214 10.80 % $ 76,221 6.00 % $ 101,628 8.00 % Total Capital $ 156,624 12.33 % $ 101,628 8.00 % $ 127,035 10.00 % As of December 31, 2019 Actual Adequately Capitalized Well Capitalized (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio Company Capital Ratios: Tier I Capital $ 121,536 10.64 % $ 45,690 4.00 % $ 57,113 5.00 % Tier I Capital $ 121,536 10.58 % $ 51,700 4.50 % $ 74,678 6.50 % Tier I Common Capital (to Risk Weighted Assets) $ 121,536 10.58 % $ 68,934 6.00 % $ 91,912 8.00 % Total Capital $ 137,773 11.99 % $ 91,912 8.00 % $ 114,890 10.00 % Bank Capital Ratios: Tier I Capital $ 119,297 10.44 % $ 45,708 4.00 % $ 57,158 5.00 % Tier I Capital $ 119,297 10.38 % $ 51,724 4.50 % $ 74,724 6.50 % Tier I Common Capital $ 119,297 10.38 % $ 68,966 6.00 % $ 91,968 8.00 % Total Capital $ 135,534 11.79 % $ 91,955 8.00 % $ 114,960 10.00 %

Parent Company only Financial_2

Parent Company only Financial Information (Tables)	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheet	STATEMENTS OF FINANCIAL CONDITION (Dollar amounts in thousands) December 31, 2020 2019 Assets: Cash and due from banks $ 11,082 $ 2,614 Investment in bank subsidiary 143,945 128,165 Other assets 1,845 19 Total assets $ 156,872 $ 130,798 Liabilities: Junior subordinated debt $ 20,000 $ — Other Liabilities 462 543 Total liabilities 20,462 543 Shareholders’ equity 136,410 130,255 Total liabilities and shareholders’ equity $ 156,872 $ 130,798
Condensed Income Statement	STATEMENTS OF INCOME (Dollar amounts in thousands) December 31, 2020 2019 Interest expense $ (495 ) $ (51 ) Non-interest (1,025 ) (469 ) Income (loss) before provision for income taxes (1,520 ) (520 ) Provision for income taxes 371 154 Income (loss) before equity in undistributed subsidiary income (1,149 ) (366 ) Equity in undistributed subsidiary income 5,452 7,367 Net income $ 4,303 $ 7,001
Condensed Cash Flow Statement	STATEMENTS OF CASH FLOWS (Dollar amounts in thousands) December 31, 2020 2019 Cash flow from operating activities: Net income $ 4,303 $ 7,001 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed (earnings) of subsidiary income (5,452 ) (7,367 ) Change in other assets and other liabilities, net (630 ) (75 ) Net cash provided by (used for) operating activities (1,779 ) (441 ) Cash flow from investing activities: Investment in subsidiary (10,000 ) — Net cash provided by (used for) investing activities (10,000 ) — Cash flow from financing activities: Proceeds from issuance of subordinated debt 20,000 — Proceeds from exercised stock options 247 614 Net cash provided by (used for) financing activities 20,247 614 Increase in cash and cash equivalents 8,468 173 Cash and cash equivalents, beginning of period 2,614 2,441 Cash and cash equivalents, end of period $ 11,082 $ 2,614

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2020
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 December 31, 2020 and 2019 are as follows: Carrying Fair Value Measurements (Dollars in thousands) Level 1 Level 2 Level 3 Total 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 As of December 31, 2019 Financial assets: Cash and due from banks $ 114,342 $ 114,342 $ — $ — $ 114,342 Securities available for sale 28,555 — 28,555 — 28,555 Loans, net 941,132 — — 940,944 940,944 Accrued interest receivable 3,398 — 168 3,230 3,398 Financial liabilities: Deposits $ 988,236 $ 870,495 $ 121,136 $ — $ 991,631 Other borrowings 10,000 — — 10,032 10,032 Subordinated debt 4,977 — — 5,112 5,112 Accrued interest payable 400 — 326 74 400
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 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 $ — As of December 31, 2019 Investments available for sale: Mortgage backed securities $ 20,722 $ — $ 20,722 $ — Government agencies 7,833 — 7,833 — Corporate bonds — — — — Total assets measured at fair value on a recurring basis $ 28,555 $ — $ 28,555 $ —
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) Level 1 Level 2 Level 3 As of December 31, 2020 Impaired loans—SBA $ 689 $ — $ — $ 689 Total assets measured at fair value on a non-recurring $ 689 $ — $ — $ 689 As of December 31, 2019 Impaired loans—Commercial $ 2,474 $ — $ — $ 2,474 Impaired loans—Real estate other 705 705 Impaired loans—SBA 296 296 Total assets measured at fair value on a non-recurring $ 3,475 $ — $ — $ 3,475

Equity Incentive Plan (Tables)

Equity Incentive Plan (Tables)	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Summary of Estimated Fair Value of Stock Options	The fair value of each option grant is estimated on the date of the grant using the Black-Scholes option pricing model. The following table reflects the assumptions used by management in the Black-Scholes option pricing model for the years ended December 31, 2020 and 2019. For the Years Ended (Dollars in thousands) 2020 2019 Expected life 10 years 10 years Stock price volatility 28.9 % 31.1 % Risk free interest rate 1.2 % 1.9 % Dividend yield 0.0 % 0.0 %
Summary of Stock Option Activity under the 2014 Plan and the Amended 2017 Plan	The following table reflects a summary of the stock option activity under the 2014 Plan and the Amended 2017 Plan for the year ended December 31, 2020. Stock Option Awards Number of Weighted Stock option awards outstanding, December 31, 2019 435,533 $ 17.07 Granted 93,828 $ 14.37 Exercised (25,136 ) $ 9.83 Forfeited or expired (33,915 ) $ 19.33 Stock option awards outstanding, December 31, 2020 470,310 $ 16.70
Summary of Weighted Average Remaining Life And Aggregate Intrinsic Value related to the Stock Options Under 2014 Plan and Amended 2017 Plan	The following table reflects the weighted remaining life and aggregate intrinsic value related to the stock options issued under the 2014 Plan and the Amended 2017 Plan at December 31, 2020. (Dollars in thousands) Number of Weighted Aggregate Stock option awards outstanding 469,956 7.00 $ 775 Stock option awards fully vested and expected to vest 260,251 8.42 $ 199 Stock option awards exercisable 202,100 5.16 $ 576
Summary of Stock Options Exercised and Granted	The following table reflects information related to stock options exercised and granted during the years ended December 31, 2020 and 2019. For the Years Ended (Dollars in thousands) 2020 2019 Options exercised: Intrinsic value $ 119 $ 678 Cash received $ 247 $ 614 Options granted: Weighted average fair value $ 6.30 $ 9.66
Summary of Restricted Stock Activity under the 2014 Plan and the Amended 2017 Plan	The following table reflects a summary of the restricted stock activity under the 2014 Plan and the Amended 2017 Plan for the year ended December 31, 2020. Non-vested Number of Weighted Non-vested 127,051 $ 20.59 Granted 74,175 $ 13.91 Vested (29,970 ) $ 20.83 Forfeited (691 ) $ 18.55 Non-vested 170,565 $ 17.65

Quarterly Financial Informati_2

Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Summary of Unaudited Condensed Consolidated Result of Operations	The following tables summarize the unaudited condensed consolidated results of operations for each of the quarters during the years ended December 31, 2020 and 2019. Quarterly Operating Results—2020 (Dollars in thousands, except per share data) Q1 Q2 Q3 Q4 Interest income $ 12,303 $ 12,781 $ 13,188 $ 14,747 Interest expense 2,121 1,996 2,000 1,985 Net interest income 10,182 10,785 11,188 12,762 Provision for loan losses 400 2,930 850 700 Net interest income after provision for loan losses 9,782 7,855 10,338 12,062 Non-interest 1,290 777 1,028 917 Non-interest 10,407 6,440 10,545 10,417 Income before provision for income taxes 665 2,192 821 2,562 Provision for income taxes 192 642 326 777 Net income $ 473 $ 1,550 $ 495 $ 1,785 Basic earnings per common share $ 0.06 $ 0.19 $ 0.06 $ 0.22 Diluted earnings per common share $ 0.06 $ 0.19 $ 0.06 $ 0.22 Quarterly Operating Results—2019 (Dollars in thousands, except per share data) Q1 Q2 Q3 Q4 Interest income $ 11,494 $ 12,221 $ 12,557 $ 12,806 Interest expense 1,657 2,137 2,124 2,222 Net interest income 9,837 10,084 10,433 10,584 Provision for loan losses 581 246 500 999 Net interest income after provision for loan losses 9,256 9,838 9,933 9,585 Non-interest 863 976 1,261 1,148 Non-interest 7,615 7,382 8,399 9,827 Income before provision for income taxes 2,504 3,432 2,795 906 Provision for income taxes 636 882 791 327 Net income $ 1,868 $ 2,550 $ 2,004 $ 579 Basic earnings per common share $ 0.23 $ 0.32 $ 0.25 $ 0.07 Diluted earnings per common share $ 0.23 $ 0.31 $ 0.25 $ 0.07

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Detail) contract in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2020USD ($)contract	Dec. 31, 2019USD ($)
Servicing assets, fair value	$ 275,000				$ 362,000				$ 275,000	$ 362,000
Investments	55,093,000				28,555,000				55,093,000	28,555,000
Income tax benefits recognized	777,000	$ 326,000	$ 642,000	$ 192,000	327,000	$ 791,000	$ 882,000	$ 636,000	1,937,000	2,636,000
Goodwill, impairment loss									$ 0
Income tax realized on settlement, percentage									50.00%
Interest Income									$ 269,000	274,000
Loan Commitments	4,100,000				4,100,000				4,100,000	4,100,000
Deposits									6,341,000	7,209,000
Interest expense	1,985,000	$ 2,000,000	$ 1,996,000	$ 2,121,000	2,222,000	$ 2,124,000	$ 2,137,000	$ 1,657,000	8,102,000	8,140,000
Rental payments									259,000	359,000
Residential Loan Porfolios [Member]
Purchase of loan portfolios net of discount									$ 2,000,000
Number of loan porfolios purchased | contract									49.1
Core Deposits [Member]
Core deposit intangible asset value	204,000								$ 204,000
Core deposit intangible asset useful life									5 years
Core deposit intangible asset, amortization									$ 41,000
Deposits									42,700,000	25,400,000
Interest expense									380,000	318,000
Low Income Housing Tax Credit [Member]
Investments in low income housing tax credits, commitments	13,600,000				13,600,000				13,600,000	13,600,000
Investment commitments capital call									1,400,000	2,400,000
New investments acquired										2,100,000
Investments	8,600,000				9,700,000				8,600,000	9,700,000
Investments, commitments remaining for future capital call	$ 2,300,000				$ 3,700,000				2,300,000	3,700,000
Income tax benefits recognized									263,000	175,000
Low income housing tax credits and other benefits recognized									822,000	1,300,000
Amortization expense of investment in low income housing tax credit									$ 1,100,000	$ 1,100,000
Minimum [Member]
Related party interest rate in the entity									10.00%
Furniture and Fixtures [Member] | Minimum [Member]
Estimated useful life									3 years
Furniture and Fixtures [Member] | Maximum [Member]
Estimated useful life									5 years
Leasehold Improvements [Member] | Minimum [Member]
Estimated useful life									7 years
Leasehold Improvements [Member] | Maximum [Member]
Estimated useful life									14 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Summary of Earnings Per Share, Basic and Diluted (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 1,785	$ 495	$ 1,550	$ 473	$ 579	$ 2,004	$ 2,550	$ 1,868	$ 4,303	$ 7,001
Weighted average basic common shares outstanding									8,131,325	8,048,793
Add: dilutive potential common shares									37,757	83,300
Weighted average diluted common shares outstanding									8,169,082	8,132,093
Basic earnings per share	$ 0.22	$ 0.06	$ 0.19	$ 0.06	$ 0.07	$ 0.25	$ 0.32	$ 0.23	$ 0.53	$ 0.87
Diluted earnings per share	$ 0.22	$ 0.06	$ 0.19	$ 0.06	$ 0.07	$ 0.25	$ 0.31	$ 0.23	$ 0.53	$ 0.86

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Summary Of Federal Home Loan Activities For The Period (Detail) - Federal Home Loan Bank Advances [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Balance, beginning	$ 4,972	$ 5,081
New loans	0
Advances	0
Repayments and other	(57)	(109)
Balance, ending	$ 4,915	$ 4,972

Business Impact Of Covid-19 - A

Business Impact Of Covid-19 - Additional Information (Detail)	Jun. 05, 2021	Mar. 15, 2021USD ($)Borrowers	Jun. 05, 2020	Jan. 31, 2021USD ($)Loans	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2020USD ($)Loans	Dec. 31, 2019USD ($)Loans
Financing receivable, modifications, number of contracts | Loans													0	0
Financing receivable, troubled debt restructuring					$ 0								$ 0
Financing receivable modifications payment deferral number of days													10 months
Number of loan applications received | Loans													632
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					306,300,000								$ 306,300,000
Interest Income (Expense), Net					$ 12,762,000	$ 11,188,000	$ 10,785,000	$ 10,182,000	$ 10,584,000	$ 10,433,000	$ 10,084,000	$ 9,837,000	44,917,000	$ 40,938,000
Allowance for Loan and Lease Losses, Period Increase (Decrease)													$ 0	$ 0
SBA Payment Protection Program [Member]
Debt Instrument, Term			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 in process					$ 50,300,000								$ 50,300,000
Value of financing receivables apply for loan forgiveness Approved					160,600,000								160,600,000
Proceeds from repayments of long term loans advanced													5,400,000
PPP Loans [Member]
Loan funded under PPP loan					306,300,000								306,300,000
Interest Income (Expense), Net					602,000								1,300,000
COVID-19 [Member] | PPP Loans [Member]
Fees received													9,100,000
Amortization of loan					2,100,000		2,500,000						4,300,000
Interest Income (Expense), Net					2,200,000								5,000,000
Allowance for Loan and Lease Losses, Period Increase (Decrease)					228,000,000,000								$ 3,500,000
COVID-19 [Member] | Loan Modifications Loans [Member]
Amortization of loan							$ 1,700,000
COVID-19 [Member] | Payment Deferral [Member]
Financing receivable, modifications, number of contracts | Loans													383
Financing receivable, troubled debt restructuring					323,900,000								$ 323,900,000
Financing receivable modifications aggregate monthly principal and interest payments					3,700,000								$ 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					$ 3,100,000								$ 3,100,000
Subsequent Event [Member]
Repayment or forgiveness of loans		$ 64,300,000
Number of borrowers whose application is in process for loan forgivenss | Borrowers		216
Subsequent Event [Member] | SBA Payment Protection Program [Member]
Debt Instrument, Term	60 months
Subsequent Event [Member] | SBA Payment Protection Program Relaunched [Member]
Number of loan applications received | Loans				380
Percentage of processed application under PPP loan				90.00%
Loan funded under PPP loan				$ 107,200,000

Business Impact Of Covid-19 - S

Business Impact Of Covid-19 - Summary of Loans Funded under PPPLF (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)Loans
Number of Loans | Loans	632
Long-term Debt, Gross	$ 306.3
PPP Loans [Member]
Long-term Debt, Gross	$ 306.3
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	32.00%
Principal Balance as a Percentage of Loans	23.00%
Dental services [Member]
Number of Loans | Loans	264
Long-term Debt, Gross	$ 37.1
Dental services [Member] | PPP Loans [Member]
Number of Loans as a Percentage of Loans	42.00%
Principal Balance as a Percentage of Loans	12.00%
Dental services [Member] | Gross Loans [Member]
Number of Loans as a Percentage of Loans	13.00%
Principal Balance as a Percentage of Loans	3.00%
Contractors [Member]
Number of Loans | Loans	95
Long-term Debt, Gross	$ 124.8
Contractors [Member] | PPP Loans [Member]
Number of Loans as a Percentage of Loans	15.00%
Principal Balance as a Percentage of Loans	41.00%
Contractors [Member] | Gross Loans [Member]
Number of Loans as a Percentage of Loans	5.00%
Principal Balance as a Percentage of Loans	9.00%
Other [Member]
Number of Loans | Loans	273
Long-term Debt, Gross	$ 144.4
Other [Member] | PPP Loans [Member]
Number of Loans as a Percentage of Loans	43.00%
Principal Balance as a Percentage of Loans	47.00%
Other [Member] | Gross Loans [Member]
Number of Loans as a Percentage of Loans	14.00%
Principal Balance as a Percentage of Loans	11.00%

Investment Securities - Summary

Investment Securities - Summary Of The Amortized Cost And Estimated Fair Value Of Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 54,183	$ 28,115
Gross unrealized gains	1,103	445
Gross unrealized losses	(193)	(5)
Estimated fair value	55,093	28,555
Corporate bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	24,224
Gross unrealized gains	434
Gross unrealized losses	(170)
Estimated fair value	24,488
Mortgage backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	27,541	20,291
Gross unrealized gains	669	436
Gross unrealized losses	(17)	(5)
Estimated fair value	28,193	20,722
Government agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	2,418	7,824
Gross unrealized gains		9
Gross unrealized losses	(6)
Estimated fair value	$ 2,412	$ 7,833

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	Dec. 31, 2020	Dec. 31, 2019
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	$ 14,723	$ 481
Less than 12 months unrealized losses	(193)	(5)
Fair value	14,723	481
Unrealized losses	(193)	(5)
Mortgage backed securities [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	4,481	481
Less than 12 months unrealized losses	(17)	(5)
Fair value	4,481	481
Unrealized losses	(17,000)	(5)
Government agencies [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	2,412	0
Less than 12 months unrealized losses	(6)
Fair value	2,412	$ 0
Unrealized losses	(6)
Corporate bonds [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	7,830
Less than 12 months unrealized losses	(170)
Fair value	7,830
Unrealized losses	$ (170,000)

Investment Securities - Summa_3

Investment Securities - Summary of Maturities Available for Sale Investment Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Amortized Cost Available for sale securities:
One to five years	$ 7,051
Five to ten years	5,250
Beyond ten years	11,923
Securities not due at a single maturity date	29,959
Total available for sale securities	54,183	$ 28,115
Fair Value Available for sale securities:
One to five years	7,344
Five to ten years	5,294
Beyond ten years	11,850
Securities not due at a single maturity date	30,605
Total available for sale securities	$ 55,093	$ 28,555

Investment Securities - Additio

Investment Securities - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020USD ($)Securities	Dec. 31, 2019USD ($)Securities
Investments Debt And Equity Securities [Line Items]
Number of securities held in portfolio | Securities	29	21
Number of available for sale securities in unrealized loss positions | Securities	6
Net unrealized gains on available for sale investment securities	$ 910,000	$ 440,000
Payments to acquire securities	44,100,000
Proceeds from sale of securities	$ 7,600,000	$ 0

Loans and Allowance For Loan _3

Loans and Allowance For Loan Losses - Summary of Outstanding Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	$ 1,369,070	$ 949,652
Deferred loan origination (fees)/costs, net	523	2,555
Allowance for loan losses	(14,111)	(11,075)	$ (10,800)
Total loans, net	1,355,482	941,132
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	414,548	389,746
Allowance for loan losses	(8,923)	(6,708)	(5,401)
Real estate—other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	550,690	502,929
Real estate—construction and land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	37,193	42,519
Allowance for loan losses	(681)	(1,022)	(1,524)
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	317,564	12,830
Allowance for loan losses	(604)	(50)	(172)
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	49,075	1,628
Allowance for loan losses	$ (26)	$ (14)	$ (26)

Loans and Allowance For Loan _4

Loans and Allowance For Loan Losses - Summary of Aging Analysis of the Loan Portfolio by the Time Past Due (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Total	$ 1,369,070	$ 949,652
Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Total	414,548	389,746
Real Estate - Construction & Land [Member]
Financing Receivable, Past Due [Line Items]
Total	37,193	42,519
SBA [Member]
Financing Receivable, Past Due [Line Items]
Total	317,564	12,830
Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Total	49,075	1,628
Loans Receivable [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	234	2,753
Current	1,367,331	945,459
Total	1,369,070	949,652
Loans Receivable [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Past Due	1,505
Loans Receivable [Member] | Over 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Past Due		1,440
Loans Receivable [Member] | Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual		2,409
Current	414,548	385,897
Total	414,548	389,746
Loans Receivable [Member] | Commercial And Industrial [Member] | Over 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Past Due		1,440
Loans Receivable [Member] | Real Estate - Other [Member]
Financing Receivable, Past Due [Line Items]
Current	549,185	502,929
Total	550,690	502,929
Loans Receivable [Member] | Real Estate - Other [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Past Due	1,505
Loans Receivable [Member] | Real Estate - Construction & Land [Member]
Financing Receivable, Past Due [Line Items]
Current	37,193	42,519
Total	37,193	42,519
Loans Receivable [Member] | SBA [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	234	344
Current	317,330	12,486
Total	317,564	12,830
Loans Receivable [Member] | Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Current	49,075	1,628
Total	$ 49,075	$ 1,628

Loans and Allowance For Loan _5

Loans and Allowance For Loan Losses - Summary of Financing Receivable and Related Impairment Methodology (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	$ 1,369,070	$ 949,652
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	414,548	389,746
Real estate—construction and land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	37,193	42,519
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	317,564	12,830
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	49,075	1,628
Loans Receivable [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans individually evaluated for impairment	2,977	5,603
Loans collectively evaluated for impairment	1,366,093	944,049
Total gross loans	1,369,070	949,652
Loans individually evaluated for impairment	300	650
Loans collectively evaluated for impairment	13,811	10,425
Total allowance for loan losses	14,111	11,075
Loans Receivable [Member] | Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans individually evaluated for impairment	2,288	4,572
Loans collectively evaluated for impairment	412,260	385,174
Total gross loans	414,548	389,746
Loans individually evaluated for impairment	41	600
Loans collectively evaluated for impairment	8,882	6,108
Total allowance for loan losses	8,923	6,708
Loans Receivable [Member] | Real estate—other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans individually evaluated for impairment		687
Loans collectively evaluated for impairment	550,690	502,242
Total gross loans	550,690	502,929
Loans collectively evaluated for impairment	3,877	3,281
Total allowance for loan losses	3,877	3,281
Loans Receivable [Member] | Real estate—construction and land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans collectively evaluated for impairment	37,193	42,519
Total gross loans	37,193	42,519
Loans collectively evaluated for impairment	681	1,022
Total allowance for loan losses	681	1,022
Loans Receivable [Member] | SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans individually evaluated for impairment	689	344
Loans collectively evaluated for impairment	316,875	12,486
Total gross loans	317,564	12,830
Loans individually evaluated for impairment	259	50
Loans collectively evaluated for impairment	345
Total allowance for loan losses	604	50
Loans Receivable [Member] | Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans collectively evaluated for impairment	49,075	1,628
Total gross loans	49,075	1,628
Loans collectively evaluated for impairment	26	14
Total allowance for loan losses	$ 26	$ 14

Loans and Allowance For Loan _6

Loans and Allowance For Loan Losses - Summary of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 11,075	$ 10,800
Provision for loan losses	4,880	2,326
Charge offs	(1,976)	(2,089)
Recoveries	132	38
Ending balance	14,111	11,075
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	6,708	5,401
Provision for loan losses	3,951	3,220
Charge offs	(1,868)	(1,951)
Recoveries	132	38
Ending balance	8,923	6,708
Real Estate, Other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	3,281	3,677
Provision for loan losses	596	(396)
Ending balance	3,877	3,281
Real Estate Construction And Land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	1,022	1,524
Provision for loan losses	(341)	(502)
Ending balance	681	1,022
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	50	172
Provision for loan losses	662	15
Charge offs	(108)	(137)
Ending balance	604	50
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	14	26
Provision for loan losses	12	(11)
Charge offs		(1)
Ending balance	$ 26	$ 14

Loans and Allowance For Loan _7

Loans and Allowance For Loan Losses - Summary of Loan Portfolio Allocated by Management's Internal Risk Ratings (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	$ 1,369,070	$ 949,652
Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	414,548	389,746
Real estate—construction and land [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	37,193	42,519
SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	317,564	12,830
Other Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	49,075	1,628
Loans Receivable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	1,369,070	949,652
Loans Receivable [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	1,340,677	925,736
Loans Receivable [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	13,655	18,265
Loans Receivable [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	14,738	5,651
Loans Receivable [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	414,548	389,746
Loans Receivable [Member] | Commercial And Industrial [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	401,629	378,327
Loans Receivable [Member] | Commercial And Industrial [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	9,013	6,894
Loans Receivable [Member] | Commercial And Industrial [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	3,906	4,525
Loans Receivable [Member] | Real estate—other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	550,690	502,929
Loans Receivable [Member] | Real estate—other [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	540,153	494,314
Loans Receivable [Member] | Real estate—other [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	2,911	7,928
Loans Receivable [Member] | Real estate—other [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	7,626	687
Loans Receivable [Member] | Real estate—construction and land [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	37,193	42,519
Loans Receivable [Member] | Real estate—construction and land [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	34,543	40,731
Loans Receivable [Member] | Real estate—construction and land [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	872	1,788
Loans Receivable [Member] | Real estate—construction and land [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	1,778
Loans Receivable [Member] | SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	317,564	12,830
Loans Receivable [Member] | SBA [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	315,277	10,736
Loans Receivable [Member] | SBA [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	859	1,655
Loans Receivable [Member] | SBA [Member] | Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	1,428	439
Loans Receivable [Member] | Other Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	49,075	1,628
Loans Receivable [Member] | Other Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Credit Exposure	$ 49,075	$ 1,628

Loans and Allowance For Loan _8

Loans and Allowance For Loan Losses - Summary of Information Related to Impaired Loans (Detail) - Loans Receivable [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With no related allowance	$ 2,288	$ 2,726
Unpaid Principal Balance With no related allowance	2,288	4,623
Average Recorded Investment With no related allowance	2,137	4,620
Interest Income Recognized With no related allowance	148	56
Recorded Investment With an allowance	2,288	4,572
Unpaid Principal Balance With an allowance	2,288	6,483
Related Allowance	41	600
Average Recorded Investment With an allowance	2,137	5,902
Interest Income Recognized With an allowance	148	124
Recorded Investment		1,846
Unpaid Principal Balance		1,860
Average Recorded Investment		1,282
Interest Income Recognized		68
Real Estate - Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With no related allowance		687
Unpaid Principal Balance With no related allowance		687
Average Recorded Investment With no related allowance		700
Interest Income Recognized With no related allowance		52
Recorded Investment		687
Unpaid Principal Balance		687
Average Recorded Investment		700
Interest Income Recognized		52
SBA [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment With no related allowance	234	294
Unpaid Principal Balance With no related allowance	479	294
Average Recorded Investment With no related allowance	1,917	1,723
Recorded Investment With an allowance	455	50
Unpaid Principal Balance With an allowance	455	200
Related Allowance	259	50
Average Recorded Investment With an allowance	3,921	203
Interest Income Recognized With an allowance	57	15
Recorded Investment	689	344
Unpaid Principal Balance	934	494
Average Recorded Investment	$ 5,838	1,926
Interest Income Recognized		$ 15

Loans and Allowance For Loan _9

Loans and Allowance For Loan Losses - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020USD ($)Loans	Dec. 31, 2019USD ($)Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest forgone on nonaccrual loans	$ 174,000	$ 367,000
Financing Receivable, Troubled Debt Restructuring	$ 0
Financing Receivable, Modifications, Number of Contracts | Loans	0	0
Increase Decrease In Allowance For Loan And Lease Losses	$ 0	$ 0
Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring		722,000
Financing Receivables Impaired Troubled Debt Restructuring Specific Reserve		$ 12,000

Premises and Equipment - Schedu

Premises and Equipment - Schedule of Premises and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Furniture, fixtures, and equipment	$ 5,236	$ 5,192
Leashold improvements	6,637	3,172
Property plant and equipment, Gross	11,873	8,364
Accumulated depreciation and amortization	(6,095)	(4,696)
Total premises and equipment	$ 5,778	$ 3,668

Premises and Equipment - Additi

Premises and Equipment - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Occupancy and Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation and Amortization Expense	$ 1,400,000	$ 880,000

Deposits - Summary of Compositi

Deposits - Summary of Composition of Deposit Portfolio (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Cash and Cash Equivalents [Line Items]
Demand noninterest- bearing	$ 673,100	$ 387,267
Demand interest-bearing	859,106	600,969
Money market and savings	623,603	455,436
Certificates of deposit	200,634	120,355
Total deposits	1,532,206	988,236
Demand Deposits [Member]
Cash and Cash Equivalents [Line Items]
Demand noninterest- bearing	673,100	387,267
Demand interest-bearing	$ 34,869	$ 25,178

Deposits - Scheduled Maturities

Deposits - Scheduled Maturities of Certificates of Deposits (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Maturities of Time Deposits [Abstract]
2021	$ 137,741
2022	44,790
2023	18,103
2024
2025
Total certificates of deposit	$ 200,634	$ 120,355

Deposits - Additional Informati

Deposits - Additional Information (Detail) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Cash and Cash Equivalents [Line Items]
Certificates of deposit	$ 200,634,000	$ 120,355,000
Federal Insurance Deposit Corporation [Member]
Cash and Cash Equivalents [Line Items]
Insured Cash Amount by FDIC per Depositor	250,000
Time Deposits 250000 or More	52,200,000	54,200,000
Brokered Certificate of Deposits	75,000,000	10,000,000
Time Deposits Less Than 250000	5,700,000	6,700,000
Federal Insurance Deposit Corporation [Member] | Certificate of Deposit Account Registry Service [Member]
Cash and Cash Equivalents [Line Items]
Certificates of deposit	$ 67,700,000	$ 49,500,000

Borrowing Arrangements - Additi

Borrowing Arrangements - Additional Information (Detail) - USD ($)	May 31, 2020	Apr. 30, 2020	Jun. 30, 2019	Apr. 15, 2016	Sep. 30, 2020	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
FHLB Advance, Collateral Pledged						$ 129,300,000		$ 188,800,000
FHLB Advance, Available Borrowing Capacity						68,300,000		133,800,000
FHLB Advance, Amount Of Advances	$ 5,000,000		$ 10,000			5,000,000
FHLB Advance, Term	1 year		2 years
FHLB Advance, Maturity Date	2021		2021
FHLB Advance, Interest Rate			1.89%				0.00%
Junior Subordinated debt securities						24,994,000		4,977,000
Federal Home Loan Ten Million Outstanding [Member]
Short-term Debt [Line Items]
Federal home loan banks term borrowings outstanding						10,000,000		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 has 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%
Related issuance costs				$ 87,000
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 tree-month term SOFR plus 0.488%
Debt Instrument, Variable Rate						0.488%
Debt Instrument, Face Amount					$ 20,000,000
Debt Instrument, Fixed Interest Rate					5.00%
Related issuance costs						$ 300,000
Junior Subordinated debt securities						20,000,000
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
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						$ 458,700,000		193,700,000
Line Of Credit Available Borrowing Capacity						358,500,000		127,300,000
Revolving Credit Facility [Member]
Short-term Debt [Line Items]
Borrowings outstanding						0		$ 0
Line Of Credit Maximum Borrowing Capacity						$ 3,000,000
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						$ 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 ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Percentage Of Commercial And industrial Loans to Total Loans
Cash Deposit FDIC Insurance Limit	$ 250,000
Uninsured deposits at financial institutions	8,700	$ 4,000
Commitments for loans	491,100	374,000
Reserve for unfunded loan commitments	305,000	185,000
Rent and equipment expense	2,400	$ 1,800
Outstanding unfunded commitments for loans fixed rate of interest amount	46,122
Outstanding unfunded commitments for loans fixed rate of interest amount	$ 445,000

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Summary of Unfunded Fixed Rate Loan Commitments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	$ 6,916
Over One Year But Less Than Five Years	31,671
Over Five Years	7,535
Total	46,122
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	3,547
Over One Year But Less Than Five Years	24,474
Over Five Years	6,088
Total	34,109
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	3,369
Over One Year But Less Than Five Years	7,047
Over Five Years	1,447
Total	11,863
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	0
Over One Year But Less Than Five Years	150
Over Five Years	0
Total	$ 150

Commitments and Contingent Li_5

Commitments and Contingent Liabilities - Summary of Unfunded Fixed Rate Loan Commitments (Details) (Parenthetical)	Dec. 31, 2020
Interest rate less than or equal to 4.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loan receivable unfunded commitements 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]
Loan receivable unfunded commitements 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]
Loan receivable unfunded commitements 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]
Loan receivable unfunded commitements 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	12 Months Ended
	Dec. 31, 2020USD ($)
Operating lease cost (cost resulting from lease payments)	$ 2,390
Operating lease—operating cash flows (fixed payments)	2,406
Operating lease—ROU assets	$ 8,319
Weighted average lease term—operating leases	3 years 2 months 23 days
Weighted average discount rate—operating leases	2.58%
Other Liabilities [Member]
Operating lease—liabilities	$ 10,414

Commitments and Contingent Li_7

Commitments and Contingent Liabilities - Summary of Operating Lease (Detail) $ in Thousands	Dec. 31, 2020USD ($)
2021	$ 2,431
2022	2,441
2023	1,497
2024	1,456
2025	1,499
Thereafer	1,792
Total undiscounted cash flows	11,116
Discount on cash flows	(702)
Other Liabilities [Member]
Total lease liability	$ 10,414

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards	$ 640,000
Minimum [Member]
Operating Loss Carryforwards, Expiration Year	2029 years
Maximum [Member]
Operating Loss Carryforwards, Expiration Year	2035 years
Federal income tax reporting [Member]
Operating Loss Carryforwards	$ 4,200,000
California income tax reporting [Member]
Operating Loss Carryforwards		$ 4,900,000

Income Taxes - Summary Of Feder

Income Taxes - Summary Of Federal And State Components Of The Company's Provision For Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Federal Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current									$ 903	$ 2,094
Deferred									389	(261)
Federal provision for income taxes									1,292	1,833
State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current									829	1,127
Deferred									(184)	(324)
State provision for income taxes									645	803
Provision for income taxes	$ 777	$ 326	$ 642	$ 192	$ 327	$ 791	$ 882	$ 636	$ 1,937	$ 2,636

Income Taxes - Summary Of Recon

Income Taxes - Summary Of Reconciliation Of The Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory federal income tax rate	21.00%	21.00%
State income taxes, net of federal benefit	7.20%	7.50%
Low income housing credits, net of investment losses	0.00%	(0.50%)
Increase in cash surrender value of life insurance	(2.00%)	(1.20%)
Share-based compensation	2.20%	0.00%
Other, net	3.10%	0.50%
Effective tax rate	31.50%	27.30%

Income Taxes - Summary Of Compa

Income Taxes - Summary Of Company's Deferred Tax Assets, Net Of Deferred Liabilities, Included In Other Assets In The Consolidated Financial Statements (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Components of Deferred Tax Assets [Abstract]
Allowance for loan losses	$ 4,172	$ 3,274
State tax deduction		246
Lease liability	3,079	2,377
Accrued expenses	1,422	1,103
Organization costs	41	77
Share-based compensation	399	289
Deferred compensation	823	379
Net operating loss carryforwards	1,246	1,435
Loan discounts	63	133
Other	282	266
Total deferred tax assets	11,527	9,579
Components of Deferred Tax Liabilities [Abstract]
Deferred loan origination costs	(2,631)	(1,834)
Right of use asset	(2,460)	(1,925)
Core deposit intangible	(60)	(72)
Other	(327)	(208)
Total deferred tax liabilities	(5,478)	(4,039)
Net deferred tax assets	$ 6,049	$ 5,540

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	$ 55,093	$ 28,555
Mortgage backed securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	28,193	20,722
Government agencies [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	2,412	7,833
Corporate bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	24,488
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	55,093	28,555
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	28,193	20,722
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	2,412	$ 7,833
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	$ 24,488

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financial assets
Cash and due from banks	$ 418,517	$ 114,342	$ 78,705
Securities available for sale	55,093	28,555
Loans, net	1,360,845	940,944
Accrued interest receivable	6,578	3,398
Financial liabilities
Deposits	1,532,460	991,631
Other borrowings	189,123	10,032
Subordinated debt	24,642	5,112
Accrued interest payable	545	400
Carrying Amount [Member]
Financial assets
Cash and due from banks	418,517	114,342
Securities available for sale	55,093	28,555
Loans, net	1,355,482	941,132
Accrued interest receivable	6,578	3,398
Financial liabilities
Deposits	1,532,206	988,236
Other borrowings	189,043	10,000
Subordinated debt	24,994	4,977
Accrued interest payable	545	400
Level 1 [Member]
Financial assets
Cash and due from banks	418,517	114,342
Financial liabilities
Deposits	1,331,572	870,495
Level 2 [Member]
Financial assets
Securities available for sale	55,093	28,555
Accrued interest receivable	225	168
Financial liabilities
Deposits	200,888	121,136
Accrued interest payable	51	326
Level 3 [Member]
Financial assets
Loans, net	1,360,845	940,944
Accrued interest receivable	6,353	3,230
Financial liabilities
Other borrowings	189,123	10,032
Subordinated debt	24,642	5,112
Accrued interest payable	$ 494	$ 74

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_3

Fair Value Measurements - Summary of Impaired Loans Measured at Fair Value on a Non-Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 689	$ 3,475
Carrying Amount [Member] | Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis		2,474
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		705
Carrying Amount [Member] | SBA [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	689	296
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	689	3,475
Level 3 [Member] | Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis		2,474
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		705
Level 3 [Member] | SBA [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 689	$ 296

Equity Incentive Plan - Additio

Equity Incentive Plan - Additional Information (Detail) - USD ($) $ in Millions	Aug. 06, 2020	Dec. 31, 2020	Dec. 31, 2019	May 18, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Granted under the Plan		93,828
Excecisable Term of Options		5 years 1 month 27 days
Stock Option Plan, Outstanding Awards		470,310	435,533
Amended 2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares available for Future Grants under Plan		529,461
Stock Option Plan, Outstanding Awards		640,875
Amended 2017 Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Granted under the Plan	920,000
Amended 2017 Plan [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Granted under the Plan	420,000
Amended 2017 Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Vesting Period		5 years
Awards Vesting Period		5 years
Amended 2017 Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excecisable Term of Options		10 years
Options Vesting Period		5 years
Awards Vesting Period		5 years
2017 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total authorized Shares availble for Issuance under Plan				404,235
Total number of shares available for Future Grants under Plan				39,123
2014 Plan And the Amended 2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount of Compensation Cost		$ 1.3	$ 1.3
2014 Plan And the Amended 2017 Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to nonvested options granted		$ 3
Unrecognised Cost is expected to be recogined on a Straight line Basis over a Weighted Average Period		8 years 6 months
2014 Plan And the Amended 2017 Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to nonvested options granted		$ 1.8
Unrecognised Cost is expected to be recogined on a Straight line Basis over a Weighted Average Period		8 years 4 months 24 days
Other Stock based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stolck Awards Granted and Issued		19,156

Equity Incentive Plan - Summary

Equity Incentive Plan - Summary of Stock Option Activity under the 2014 Plan and the Amended 2017 Plan (Detail)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Share-based Payment Arrangement [Abstract]
Beginning balance, Shares | shares	435,533
Granted ,Shares | shares	93,828
Exercised ,Shares | shares	(25,136)
Forfeited or expired ,Shares | shares	33,915
Ending balance, shares | shares	470,310
Beginning balance of Weighted Average Exercise Price | $ / shares	$ 17.07
Granted ,Weighhted Average Exercise Price | $ / shares	14.37
Exercised ,Weighted Average Exercise Price | $ / shares	9.83
Forfeited or expired ,Weighted Average Exercise Price | $ / shares	19.33
Ending balance of Weighted Average Exercise Price | $ / shares	$ 16.70

Equity Incentive Plan - Summa_2

Equity Incentive Plan - Summary Of Weighted Average Remaining Life And Aggregate Intrinsic Value related to the Stock Options Under 2014 Plan and Amended 2017 Plan (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Stock option awards outstanding, Shares	470,310	435,533
Stock option awards fully vested and expected to vest,Shares	260,251
Stock option awards exercisable,Shares	202,100
Stock option awards outstanding, Weighted Average Remaining Life	7 years
Stock option awards fully vested and expected to vest, Weighted Average Remaining Life	8 years 5 months 1 day
Stock option awards exercisable.Weighted Average Remaining Life	5 years 1 month 27 days
Stock option awards outstanding, Aggregate Intrinsic Value	$ 775
Stock option awards fully vested and expected to vest ,Intrinsic Value	199
Stock option awards exercisable,Intrinsic Value	$ 576

Equity Incentive Plan - Summa_3

Equity Incentive Plan - Summary Of Stock Options Exercised and Granted (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Options exercised:
Intrinsic value	$ 119	$ 678
Cash received	$ 247	$ 614
Options granted:
Weighted average fair value	$ 6.30	$ 9.66

Equity Incentive Plan - Summa_4

Equity Incentive Plan - Summary of Estimated Fair Value of Stock Options (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Expected life	10 years	10 years
Stock price volatility	28.90%	31.10%
Risk free interest rate	1.20%	1.90%
Dividend yield	0.00%	0.00%

Equity Incentive Plan - Summa_5

Equity Incentive Plan - Summary Of Restricted Stock Activity under the 2014 Plan and the Amended 2017 Plan (Detail)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Share-based Payment Arrangement [Abstract]
Shares, Nonvested, Beginning balance | shares	127,051
Granted ,Shares | shares	74,175
Vested ,Shares | shares	(29,970)
Forfeited ,Shares | shares	(691)
Shares, Nonvested, Ending balance | shares	170,565
Weighted-Average Grant Date Fair Value Per Share, Nonvested Beginning balance | $ / shares	$ 20.59
Granted, Weighted Average Fair Value | $ / shares	13.91
Vested, Weighted Average Fair Value | $ / shares	20.83
Forfeited, Weighted Average Fair Value | $ / shares	18.55
Weighted-Average Grant Date Fair Value Per Share, Nonvested Ending balance | $ / shares	$ 17.65

Other Employee Benefit Plans -

Other Employee Benefit Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Plan Assets, Administration Expense	$ 835,000	$ 457,000
Supplemental Unemployment Benefits, Salary Continuation	$ 2,100,000	$ 1,300,000
Minimum [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.50%
Maximum [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		4.25%
California Bank of Commerce Profit Sharing Plan [Member]
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	20.00%
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 618,000	$ 523,000

Regulatory Capital Requiremen_3

Regulatory Capital Requirements - Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations (Detail) $ in Thousands	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 Capital (to Average Assets), Actual, Amount	$ 128,140	$ 121,536
Tier 1 Capital (to Average Assets), Actual, Ratio	7.49	10.64
Tier 1 Capital (to Average Assets), Actual, Amount	$ 128,140	$ 121,536
Tier 1 Capital (to Average Assets), Actual, Ratio	10.11	10.58
Tier 1 Capital (to Risk-Weighted Assets), Actual, Amount	$ 128,140	$ 121,536
Tier 1 Capital (to Risk-Weighted Assets), Actual, Ratio	10.11	10.58
Tier 1 Capital (to Risk-Weighted Assets), Actual, Amount	$ 167,550	$ 137,773
Tier 1 Capital (to Risk-Weighted Assets), Actual, Ratio	13.22	11.99
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Amount	$ 68,413	$ 45,690
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Amount	57,052	51,700
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Amount	76,070	68,934
Total Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Amount	101,427	91,912
Tier I Capital (to Average Assets),Required to be Well Capitalized ,amount	85,517	57,113
Tier I Capital (to Average Assets),Required to be Well Capitalized ,amount	82,409	74,678
Tier I Capital (to Average Assets),Required to be Well Capitalized ,amount	101,427	91,912
Total Capital (to Risk-Weighted Assets), Required To Be Well Capitalized, Amount	$ 126,783	$ 114,890
Parent Company [Member] | Minimum [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Ratio	4	4
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Ratio	4.50%	4.50%
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Ratio	6	6
Total Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Ratio	8	8
Tier I Capital (to Average Assets),Required to be Well Capitalized ,Ratio	5	5
Tier I Capital (to Average Assets),Required to be Well Capitalized ,Ratio	6.50%	6.50%
Tier I Capital (to Average Assets),Required to be Well Capitalized ,Ratio	8	8
Total Capital (to Risk-Weighted Assets), Required To Be Well Capitalized, Ratio	10	10
Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 Capital (to Average Assets), Actual, Amount	$ 137,214	$ 119,297
Tier 1 Capital (to Average Assets), Actual, Ratio	8.02	10.44
Tier 1 Capital (to Average Assets), Actual, Amount	$ 137,214	$ 119,297
Tier 1 Capital (to Average Assets), Actual, Ratio	10.80	10.38
Tier 1 Capital (to Risk-Weighted Assets), Actual, Amount	$ 137,214	$ 119,297
Tier 1 Capital (to Risk-Weighted Assets), Actual, Ratio	10.80	10.38
Tier 1 Capital (to Risk-Weighted Assets), Actual, Amount	$ 156,624	$ 135,534
Tier 1 Capital (to Risk-Weighted Assets), Actual, Ratio	12.33	11.79
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Amount	$ 68,462	$ 45,708
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Amount	57,166	51,724
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Amount	76,221	68,966
Total Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Amount	101,628	91,955
Tier I Capital (to Average Assets),Required to be Well Capitalized ,amount	85,578	57,158
Tier I Capital (to Average Assets),Required to be Well Capitalized ,amount	82,573	74,724
Tier I Capital (to Average Assets),Required to be Well Capitalized ,amount	101,628	91,968
Total Capital (to Risk-Weighted Assets), Required To Be Well Capitalized, Amount	$ 127,035	$ 114,960
Bank [Member] | Minimum [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Ratio	4	4
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Ratio	4.50%	4.50%
Tier I Capital (to Average Assets ), For Capital Adequacy Purposes, Ratio	6	6
Total Capital (to Risk-Weighted Assets), For Capital Adequacy Purposes, Ratio	8	8
Tier I Capital (to Average Assets),Required to be Well Capitalized ,Ratio	5	5
Tier I Capital (to Average Assets),Required to be Well Capitalized ,Ratio	6.50%	6.50%
Tier I Capital (to Average Assets),Required to be Well Capitalized ,Ratio	8	8
Total Capital (to Risk-Weighted Assets), Required To Be Well Capitalized, Ratio	10	10

Parent Company only Financial_3

Parent Company only Financial Information - Statement of Financial Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets:
Cash and due from banks	$ 22,485	$ 19,579
Total assets	1,905,779	1,152,034
Liabilities:
Junior subordinated debt	24,994	4,977
Total liabilities	1,769,369	1,021,778
Shareholders' equity	136,410	130,256	$ 121,079
Total liabilities and shareholders' equity	1,905,779	1,152,034
Parent Company [Member]
Assets:
Cash and due from banks	11,082	2,614
Investment in bank subsidiary	143,945	128,165
Other assets	1,845	19
Total assets	156,872	130,798
Liabilities:
Junior subordinated debt	20,000
Other Liabilities	462	543
Total liabilities	20,462	543
Shareholders' equity	136,410	130,255
Total liabilities and shareholders' equity	$ 156,872	$ 130,798

Parent Company only Financial_4

Parent Company only Financial Information - Condensed Statement of Income (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Interest expense	$ 1,985	$ 2,000	$ 1,996	$ 2,121	$ 2,222	$ 2,124	$ 2,137	$ 1,657	$ 8,102	$ 8,140
Non-interest expense	917	1,028	777	1,290	1,148	1,261	976	863	4,012	4,248
Income (loss) before provision for income taxes	2,562	821	2,192	665	906	2,795	3,432	2,504	6,240	9,637
Provision for income taxes	777	326	642	192	327	791	882	636	1,937	2,636
Net income	$ 1,785	$ 495	$ 1,550	$ 473	$ 579	$ 2,004	$ 2,550	$ 1,868	4,303	7,001
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Interest expense									(495)	(51)
Non-interest expense									(1,025)	(469)
Income (loss) before provision for income taxes									(1,520)	(520)
Provision for income taxes									371	154
Income (loss) before equity in undistributed subsidiary income									(1,149)	(366)
Equity in undistributed subsidiary income									5,452	7,367
Net income									$ 4,303	$ 7,001

Parent Company only Financial_5

Parent Company only Financial Information - Condensed Statement of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Net income	$ 1,785	$ 495	$ 1,550	$ 473	$ 579	$ 2,004	$ 2,550	$ 1,868	$ 4,303	$ 7,001
Adjustments to reconcile net income to net cash provided by operating activities:
Net cash provided by operating activities									14,753	12,479
Cash flows from investing activities:
Net cash used for investing activities									(453,838)	(101,438)
Cash flows from financing activities:
Proceeds from issuance of subordinated debt									20,000
Proceeds from exercised stock options									247	614
Net cash provided by financing activities									743,260	124,596
Increase in cash and cash equivalents									304,175	35,637
Cash and cash equivalents, beginning of period				114,342				78,705	114,342	78,705
Cash and cash equivalents, end of period	418,517				114,342				418,517	114,342
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net income									4,303	7,001
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed (earnings) of subsidiary income									(5,452)	(7,367)
Change in other assets and other liabilities, net									(630)	(75)
Net cash provided by operating activities									(1,779)	(441)
Cash flows from investing activities:
Investment in subsidiary									(10,000)
Net cash used for investing activities									(10,000)
Cash flows from financing activities:
Proceeds from issuance of subordinated debt									20,000
Proceeds from exercised stock options									247	614
Net cash provided by financing activities									20,247	614
Increase in cash and cash equivalents									8,468	173
Cash and cash equivalents, beginning of period				$ 2,614				$ 2,441	2,614	2,441
Cash and cash equivalents, end of period	$ 11,082				$ 2,614				$ 11,082	$ 2,614

Quarterly Financial Informati_3

Quarterly Financial Information (Unaudited) - Summary of Unaudited Condensed Consolidated Result of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Selected Quarterly Financial Information [Abstract]
Interest income	$ 14,747	$ 13,188	$ 12,781	$ 12,303	$ 12,806	$ 12,557	$ 12,221	$ 11,494	$ 53,019	$ 49,078
Interest expense	1,985	2,000	1,996	2,121	2,222	2,124	2,137	1,657	8,102	8,140
Net interest income	12,762	11,188	10,785	10,182	10,584	10,433	10,084	9,837	44,917	40,938
Provision for loan losses	700	850	2,930	400	999	500	246	581	4,880	2,326
Net interest income after provision for loan losses	12,062	10,338	7,855	9,782	9,585	9,933	9,838	9,256	40,037	38,612
Non-interest income	917	1,028	777	1,290	1,148	1,261	976	863	4,012	4,248
Non-interest expense	10,417	10,545	6,440	10,407	9,827	8,399	7,382	7,615	37,809	33,223
Income (loss) before provision for income taxes	2,562	821	2,192	665	906	2,795	3,432	2,504	6,240	9,637
Provision for income taxes	777	326	642	192	327	791	882	636	1,937	2,636
Net income	$ 1,785	$ 495	$ 1,550	$ 473	$ 579	$ 2,004	$ 2,550	$ 1,868	$ 4,303	$ 7,001
Basic earnings per common share	$ 0.22	$ 0.06	$ 0.19	$ 0.06	$ 0.07	$ 0.25	$ 0.32	$ 0.23	$ 0.53	$ 0.87
Diluted earnings per common share	$ 0.22	$ 0.06	$ 0.19	$ 0.06	$ 0.07	$ 0.25	$ 0.31	$ 0.23	$ 0.53	$ 0.86