Coastal Financial (CCB) 10-K 14 Mar 22 2021 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Mar. 07, 2022	Jun. 30, 2021
Cover [Abstract]
Entity Registrant Name	COASTAL FINANCIAL CORPORATION
Entity Central Index Key	0001437958
Trading Symbol	CCB
Amendment Flag	false
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Common Stock, Shares Outstanding		12,918,383
Entity Public Float			$ 279,201,275
Document Annual Report	true
Document Transition Report	false
Security Exchange Name	NASDAQ
Title of 12(b) Security	Common Stock, no par value per share
Entity Interactive Data Current	Yes
Entity File Number	001-38589
Entity Incorporation, State or Country Code	WA
Entity Tax Identification Number	56-2392007
Entity Address, Address Line One	5415 Evergreen Way
Entity Address, City or Town	Everett
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	98203
City Area Code	425
Local Phone Number	257-9000
ICFR Auditor Attestation Flag	false
Auditor Firm ID	659
Auditor Name	Moss Adams LLP
Auditor Location	Everett, WA
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of the Registrant’s Definitive Proxy Statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A for its 2022 Annual Meeting of Shareholders are incorporated by reference into Part III of this Annual Report on Form 10-K.

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 14,496,000	$ 18,965,000
Interest earning deposits with other banks (restricted cash of $0 at December 31, 2021 and December 31, 2020)	798,665,000	144,152,000
Investment securities, available for sale, at fair value	35,327,000	20,399,000
Investment securities, held to maturity, at amortized cost	1,296,000	2,848,000
Other investments	8,478,000	6,059,000
Loans receivable	1,742,735,000	1,547,138,000
Allowance for loan losses	(28,632,000)	(19,262,000)
Total loans receivable, net	1,714,103,000	1,527,876,000
Premises and equipment, net	17,219,000	17,108,000
Operating lease right-of-use assets	6,105,000	7,120,000
Accrued interest receivable	8,105,000	8,616,000
Bank-owned life insurance, net	12,254,000	7,082,000
Deferred tax asset, net	6,818,000	3,799,000
Other assets	12,651,000	2,098,000
Total assets	2,635,517,000	1,766,122,000
LIABILITIES
Deposits	2,363,787,000	1,421,307,000
Federal Home Loan Bank (FHLB) advances	24,999,000	24,999,000
Paycheck Protection Program Liquidity Facility		153,716,000
Principal amount $25,000 (less unamortized debt issuance costs of $712), Principal amount $10,000 (less unamortized debt issuance costs of $7), at December 31, 2021 and December 31, 2020, respectively)	24,288,000	9,993,000
Principal amount $3,609 (less unamortized debt issuance costs of $23 and $25 at December 31, 2021 and December 31, 2020, respectively)	3,586,000	3,584,000
Deferred compensation	744,000	863,000
Operating lease liabilities	6,320,000	7,323,000
Accrued interest payable	357,000	531,000
Other liabilities	10,214,000	3,589,000
Total liabilities	2,434,295,000	1,625,905,000
Commitments and contingencies (Note 13)
SHAREHOLDERS’ EQUITY
Authorized: 25,000,000 shares at December 31, 2021 and 2020; issued and outstanding: zero shares at December 31, 2021 and 2020
Authorized: 300,000,000 shares at December 31, 2021 and December 31, 2020: 12,875,315 voting shares at December 31, 2021 issued and outstanding, and 11,954,327 voting shares at December 31, 2020 issued and outstanding	121,845,000	87,815,000
Retained earnings	79,373,000	52,368,000
Accumulated other comprehensive income, net of tax	4,000	34,000
Total shareholders’ equity	201,222,000	140,217,000
Total liabilities and shareholders’ equity	$ 2,635,517,000	$ 1,766,122,000

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Restricted cash	$ 0	$ 0
Preferred stock, no par value
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, no par value
Common stock, shares authorized	300,000,000	300,000,000
Voting Common Stock
Common stock, shares, issued	12,875,315	11,954,327
Common stock, shares, outstanding	12,875,315	11,954,327
Subordinated Debt
Principal amount	$ 25,000,000	$ 10,000,000
Unamortized debt issuance cost	712,000	7,000
Junior Subordinated Debentures
Principal amount	3,609,000	3,609,000
Unamortized debt issuance cost	$ 23,000	$ 25,000

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
INTEREST AND DIVIDEND INCOME
Interest and fees on loans	$ 82,112	$ 61,910
Interest on investment securities	79	230
Interest on interest earning deposits with other banks	608	663
Dividends on other investments	284	235
Total interest income	83,083	63,038
INTEREST EXPENSE
Interest on deposits	2,327	4,288
Interest on borrowed funds	1,319	1,364
Total interest expense	3,646	5,652
Net interest income	79,437	57,386
PROVISION FOR LOAN LOSSES	9,915	8,308
Net interest income after provision for loan losses	69,522	49,078
NONINTEREST INCOME
Unrealized holding gain (loss) on equity investment, net	1,469	(400)
Gain on sale of branch, net	1,263
Gain on sales of loans, net	396	82
Other income	939	663
Total noninterest income	28,118	8,182
NONINTEREST EXPENSE
Salaries and employee benefits	37,101	23,302
Occupancy	4,128	3,977
BaaS expense	4,481	294
Software licenses, maintenance and subscription	2,827	1,320
Data processing	2,959	2,348
Legal and professional fees	3,133	1,762
Excise taxes	1,589	1,057
Director and staff expenses	1,205	800
Federal Deposit Insurance Corporation (“FDIC”) assessments	1,632	522
Marketing and promotional	451	317
Other expense	3,757	2,420
Total noninterest expense	63,263	38,119
Income before provision for income taxes	34,377	19,141
PROVISION FOR INCOME TAXES	7,372	3,995
NET INCOME	$ 27,005	$ 15,146
Basic earnings per common share	$ 2.25	$ 1.27
Diluted earnings per common share	$ 2.16	$ 1.24
Weighted average number of common shares outstanding:
Basic	12,022,954	11,920,735
Diluted	12,521,426	12,209,371
Deposit Service Charges and Fees
NONINTEREST INCOME
Noninterest income	$ 3,698	$ 3,091
BaaS Fees
NONINTEREST INCOME
Noninterest income	17,307	2,365
Loan Referral Fees
NONINTEREST INCOME
Noninterest income	2,126	1,726
Mortgage Broker Fees
NONINTEREST INCOME
Noninterest income	$ 920	$ 655

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME	$ 27,005	$ 15,146
Securities available-for-sale
Unrealized holding (loss) gain during the year	(38)	83
Income tax benefit (provision) related to unrealized holding gain	8	(17)
OTHER COMPREHENSIVE (LOSS) INCOME , net of tax	(30)	66
COMPREHENSIVE INCOME	$ 26,975	$ 15,212

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2019	$ 124,173	$ 86,983	$ 37,222	$ (32)
Beginning balance, Shares at Dec. 31, 2019		11,913,885
Net income	15,146		15,146
Issuance of restricted stock awards, net of forfeitures, Shares		9,142
Exercise of stock options	202	$ 202
Exercise of stock options, Shares		31,300
Stock-based compensation	630	$ 630
Other comprehensive income (loss)	66			66
Ending balance at Dec. 31, 2020	140,217	$ 87,815	52,368	34
Ending balance, Shares at Dec. 31, 2020		11,954,327
Net income	27,005		27,005
Issuance of restricted stock awards, net of forfeitures, Shares		18,565
Exercise of stock options	$ 359	$ 359
Exercise of stock options, Shares	50,570	50,570
Stock-based compensation	$ 1,284	$ 1,284
Stock issuance and net proceeds from public offering	32,387	$ 32,387
Stock issuance and net proceeds from public offering, Shares		851,853
Other comprehensive income (loss)	(30)			(30)
Ending balance at Dec. 31, 2021	$ 201,222	$ 121,845	$ 79,373	$ 4
Ending balance, Shares at Dec. 31, 2021		12,875,315

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 27,005	$ 15,146
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	9,915	8,308
Depreciation and amortization	1,587	1,356
Loss on disposition of fixed assets		12
Decrease in operating lease right-of-use assets	1,056	1,393
Decrease in operating lease liabilities	(1,044)	(1,377)
Gain on sales of loans	(396)	(82)
Net premium amortization (discount accretion) on investment securities	32	46
Unrealized (gain) loss on equity investment	(1,469)	400
Stock-based compensation	1,284	630
Gain on sale of branch, net	(1,263)
Bank-owned life insurance earnings	(172)	(200)
Deferred tax expense	(3,011)	(1,074)
Net change in other assets and liabilities	(3,677)	(5,228)
Total adjustments	2,842	4,184
Net cash provided by operating activities	29,847	19,330
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease (increase) in interest earning deposits with other banks	(654,513)	(60,248)
Purchase of investment securities available-for-sale	(117,493)	(29,986)
Change in other investments, net	(950)	(1,954)
Principal paydowns of investment securities available-for-sale	33	48
Principal paydowns of investment securities held-to-maturity	1,515	1,437
Maturities and calls of investment securities available -for-sale	102,500	38,000
Purchase of bank owned life insurance	(5,000)
Purchase of loans	(60,260)
Proceeds from sale of loans	4,092	1,120
Increase in loans receivable, net	(141,503)	(609,589)
Net cash transfer for branch sale	(19,980)
Purchases of premises and equipment, net	(2,593)	(5,368)
Net cash used by investing activities	(894,152)	(666,540)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in demand deposits, NOW, money market and savings	980,766	475,575
Net decrease in time deposits	(14,223)	(22,227)
Net repayments from short-term FHLB borrowings		(10,000)
Proceeds from long-term FHLB borrowings		24,999
Increase from subordinated debt proceeds	24,263
Decrease from subordinated debt repayment	(10,000)
Proceeds from PPPLF borrowings		205,648
Repayments from PPPLF borrowings	(153,716)	(51,932)
Proceeds from public offering	32,387
Proceeds from exercise of stock options	359	202
Net cash provided by financing activities	859,836	622,265
NET INCREASE IN CASH, DUE FROM BANKS AND RESTRICTED CASH	(4,469)	(24,945)
CASH, DUE FROM BANKS AND RESTRICTED CASH, beginning of year	18,965	43,910
CASH, DUE FROM BANKS AND RESTRICTED CASH, end of year	14,496	18,965
SUPPLEMENTAL SCHEDULE OF OPERATING AND INVESTING ACTIVITIES
Interest paid	3,820	6,547
Income taxes paid	8,759	5,355
SUPPLEMENTAL SCHEDULE OF NONCASH TRANSACTIONS
Fair value adjustment of securities available-for-sale, gross	(37)	$ 83
In conjunction with ASU 2016-02 as detailed in Note 6 to the Consolidated Financial Statements, the following assets & liabilities were recognized:
Operating lease right-of-use assets	41
Operating lease liabilities	$ (41)

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Description of Business and Summary of Significant Accounting Policies	Note 1 - Description of Business and Summary of Significant Accounting Policies Nature of operations - Coastal Financial Corporation (“Corporation” or “Company”) is a registered bank holding company whose wholly owned subsidiaries are Coastal Community Bank (“Bank”) and Arlington Olympic LLC. The Company is a Washington state corporation that was organized in 2003. The Bank was incorporated and commenced operations in 1997 and is a Washington state-chartered commercial bank and Federal Reserve System (“Federal Reserve”) state member bank. Arlington Olympic LLC was formed in 2019 and owns the Arlington branch, which the Bank leases from the LLC. The Company operates through the Bank and is headquartered in Everett, Washington, which by population is the largest city in, and the county seat of, Snohomish County. The Company’s business is conducted through two reportable segments: The community bank and CCBX. The community bank offers a full range of banking services to small and medium-sized businesses, professionals, and individuals throughout the greater Puget Sound area through its 14 branches in Snohomish, Island and King Counties, the Internet, and its mobile banking application. The Company also has a CCBX segment which provides Banking as a Service (“BaaS”) enabling broker dealers and digital financial service providers to offer their clients banking services. Through CCBX’s partners the Company is able to offer banking services and products across the nation. The Bank’s deposits are insured in whole or in part by the Federal Deposit Insurance Corporation (“FDIC”). The community bank’s loans and deposits are primarily within the greater Puget Sound area, while CCBX loans and deposits are dependent upon the partner’s market. The Bank’s primary funding source is deposits from customers. The Bank is subject to regulation and supervision by the Board of Governors of the Federal Reserve System and the Washington State Department of Financial Institutions Division of Banks. The Federal Reserve also has regulatory and supervisory authority over the Company. Financial statement presentation - The accompanying audited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for reporting requirements and practices within the banking industry. Amounts presented in the consolidated financial statements and footnote tables are rounded and presented in thousands of dollars except per-share amounts, which are presented in dollars. In the narrative footnote discussion, amounts are rounded to thousands and presented in dollars. In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying consolidated financial statements have been made. These adjustments include normal and recurring accruals considered necessary for a fair and accurate presentation. Principles of consolidation - The consolidated financial statements include the accounts of the Company, the Bank and the LLC. All significant intercompany accounts have been eliminated in consolidation. Estimates - The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Management believes that its critical accounting estimates include determining the allowance for loan losses, the fair value of the Company’s financial instruments, and the valuation of deferred tax assets, financial instruments, and other fair value measurements. Actual results could differ significantly from those estimates. Subsequent Events - The Company has evaluated events and transactions subsequent to December 31, 2021 for potential recognition or disclosure. Cash equivalents - For the purpose of presentation in the statements of cash flows, the Company considers all amounts included in the balance sheet under “cash and due from banks”, all of which have original maturity dates of three months or less, and restricted cash, as cash equivalents. Interest-bearing deposits at other financial institutions (excluding restricted cash), federal funds sold, and cash flows from loans and deposits are reported as net increases or decreases under cash flows from investing activities or from financing activities. The Company maintains Investment - Debt securities that management has the ability and intent to hold to maturity are classified as held-to-maturity and carried at amortized cost. The amortization of premiums and accretion of discounts are recognized in interest income using the interest method or methods approximating the interest method over the period to maturity. Debt securities Declines Other - Other investments on the balance sheet consists of direct equity investments in stock of the Federal Home Loan Bank of Des Moines (“FHLB”), the Federal Reserve Bank of San Francisco (“FRB”), Pacific Coast Banker’s Bancshares, Neocova Corporation, and Synctera Incorporated, additionally, other investments include investments in two equity funds. As a Federal on the Bank’s 2.8 million The Bank, as a member The investment The Company has the following equity investments which do not have a readily determinable fair value and are held at cost minus impairment if any, plus or minus observable price changes in orderly transactions for an identical or similar investment of the same issuer. This method will be applied until the investments do not qualify for the measurement election (e.g., if the investment has a readily determinable fair value). The Company will reassess at each reporting period whether the equity investments without a readily determinable fair value qualifies to be measured at cost minus impairment. As of December 31, 2021 and December 31, 2020 the Company has $2.2 million and $750,000, respectively, equity interest in a specialized bank technology company which consists of 1.6 million shares of common stock and 873,853 preferred shares. During the year ended December 31, 2021, the Company reassessed the value and recognized a $1.5 million unrealized holding gain as a result of an observable price change. The Company holds a $100,000 equity interest in a technology company at December 31, 2021, which consists of 9,000 shares of stock and is carried at cost less impairment, which approximates its fair value. During the year ended December 31, 2020 the Company re-evaluated the value and recorded an impairment of $400,000 on this equity investment. Additionally, the Company committed up to a $500,000 equity investment in a company during the year ended December 31, 2021. No contribution has been made as of December 31, 2021. During the year ended December 31, 2021, the Company entered into agreements with two investment funds designed to help accelerate technology adoption at banks. These equity investments are held at fair value. During the year ended December 31, 2021, the Company committed up to $1.1 million in capital for these equity funds, however, the Company is not obligated to fund these commitments prior to a capital call. During the year the Company contributed $163,000 in with recognized losses of $3,000 during the year resulting in an equity interest of $160,000 for the year ended December 31, 2021. Loans and allowance – Loans are stated at the principal amount outstanding less the allowance for loan losses and net of any deferred fees or costs on originated loans, and unamortized premiums or discounts on purchased loans. Loan fees and certain direct loan origination costs are deferred, and the net fee or cost is recognized as an adjustment to interest income using the level yield methodology and a method that approximates the level yield methodology. Interest income on loans is recognized based upon the principal amounts outstanding. Generally, the accrual of interest is discontinued when, in management’s opinion, the borrower may be unable to meet payments as they become due or when they are 90 days past due as to either principal or interest, unless they are well secured and in the process of collection. When interest accrual is discontinued, all unpaid accrued interest is reversed against current income. If management determines that the ultimate collectability of principal or interest is in doubt, cash receipts on nonaccrual loans are applied to reduce the principal balance on a cash-basis method, until the loans qualify for return to accrual status or principal is paid in full. Loans are returned to accrual status when all principal and interest amounts contractually due are brought current, borrower has demonstrated ability to make regular payments, generally a period of at least six months, and future payments are reasonably assured. The allowance for loan losses is comprised of amounts charged against income in the form of the provision for loan losses, less charged-off loans, net of recoveries. When available information confirms that specific loans or portions thereof are uncollectible, identified amounts are charged against the allowance for loan losses. The existence of some or all of the following criteria will generally confirm that a loss has been incurred: (1) the loan is significantly delinquent and the borrower has not demonstrated the ability or intent to bring the loan current; (2) the Company has no recourse to the borrower or if it does, the borrower has insufficient assets to pay the debt; (3) the estimated fair value of the loan collateral is significantly below the current loan balance; and (4) there is little or no near-term prospect for improvement. Subsequent recoveries, if any, are credited to the allowance for loan losses. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance consists of specific and general components. The specific component relates to loans that are determined to be impaired. For such loans (including troubled debt restructurings), an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers various loans and is based on the probability of default and loss given default, type of loan, peer information, risk rating and adjusted for qualitative and quantitative trends in the portfolio, including the internal risk classification of loans, historical loss rates, changes in the nature and volume of the loan portfolio, industry or borrower concentrations, delinquency trends, detailed reviews of significant loans with identified weaknesses and the impacts of local, regional and national economic factors on the quality of the loan portfolio. Community bank and CCBX loans are assessed at either the individual loan level or pooled, depending on loan type and characteristics of the loan. Consumer loans and smaller balance loans are typically assessed as homogeneous loan pools. Based on management’s analysis, the Company records a provision for loan losses to maintain the allowance at appropriate levels. CCBX lending partners originate various loan types, and as of December 31, 2021, include consumer, commercial and home equity loans. CCBX consumer loans have a higher level of expected losses than community bank loans which is reflected in the higher loss factors for the allowance for loan losses. Estimated loss rates for CCBX loans vary by partner, and might be based on actual partner experience, realized losses or losses for comparable products, industry averages, or the Company’s loss rate for similar loans. Many of the agreements with our CCBX partners provide for a credit enhancement which helps protect the Bank by absorbing incurred losses. CCBX credit enhancements are free-standing and is accounted separately from the allowance for loan loss. In accordance with accounting guidance, we estimate and record a provision for probable losses for these CCBX loans, without regard to the credit enhancement. When the provision for loan losses is recorded, a free-standing credit enhancement receivable is recorded on the balance sheet through noninterest income (BaaS fees -credit enhancement). Charge-offs of CCBX partner loans are recorded against the allowance for loan losses. When collected from the credit enhancement cash reserve account or the CCBX partner, the credit enhancement receivable is relieved. If a CCBX lending partner is unable to fulfill their contractual obligations under the credit enhancement, then the Bank would be exposed to additional loan losses as a result of this counterparty risk and would have to absorb any loan losses associated with the CCBX partner that cannot fulfill its contractual obligations. Management believes the balance would be recoverable in the event of bankruptcy of the partner, but there are no guarantees that bankruptcy court will rule in the Company’s favor. Credit-worthiness of CCBX partners are evaluated as part of initial due diligence and quarterly thereafter. A community bank loan loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral-dependent. CCBX consumer loans and home equity loans are treated as homogenous pool s and are not subject to individual impairment analysis. A troubled Loans held-for-sale - Loans held-for-sale consist of the guaranteed portion of SBA loans and United States Department of Agriculture (USDA) loans the Company intends to sell after origination and are reflected at the lower of aggregate cost or fair value. Loans are generally sold with servicing of the sold portion retained by the Company when the sale of the loan occurs, the premium received is combined with the estimated present value of future cash flows on the related servicing asset and recorded as a gain on sale of loans in noninterest income. There were no loans held for sale at December 31, 2021 and 2020. Loan - The Company recognizes a sale on loans if the transferred portion (or portions) and any portion that continues to be held by the transferor are participating interests. Participating interest is defined as a portion of a financial asset that (a) conveys proportionate ownership rights with equal priority to each participating interest holder, (b) involves no recourse (other than standard representations and warranties), and (c) does not entitle any participating interest holder to receive cash before any other participating interest holder. The transfer of the participating interest (or participating interests) must also meet the conditions for surrender of control. To determine The Company retains SBA and USDA - The Company accounts for SBA and USDA servicing rights as separately recognized servicing rights and initially measures them at fair value. Fair value is based on market prices for comparable servicing contracts, when available, or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. The Company subsequently measures each SBA and USDA servicing asset using the amortization method. Under the amortization method, servicing assets are amortized into noninterest income in proportion to, and over the period of, estimated net servicing income. The amortized assets are assessed for impairment or increased obligations, at the loan level, based on the fair value of each reporting date. As of December 31, 2021 and 2020, SBA and USDA servicing assets totaled $269,000 and $298,000, respectively, and are included in other assets on the consolidated balance sheets, and SBA and USDA loans serviced totaled $19.3 million and $20.6 million, as of December 31, 2021 and 2020 respectively. Reserve - A reserve for unfunded commitments is maintained at a level that, in the opinion of management, is adequate to absorb probable losses associated with the Company’s commitment to lend funds under existing agreements, such as letters or lines of credit. Management determines the adequacy of the reserve for unfunded commitments based on review of individual credit facilities, current economic conditions, and risk characteristics of the various categories of commitments and other relevant factors. The reserve is based on estimates, and ultimate losses may vary from the current estimates. These estimates are evaluated on a regular basis and adjustments are reported in earnings in the periods in which they become known. Draws on unfunded commitments that are considered uncollectible at the time funds are advanced are charged to the allowance for loan losses. Provision for unfunded commitments losses are added to the reserve for unfunded commitments, which is included in the other liabilities section of the consolidated balance sheets. The reserve for unfunded commitments was $ 1.3 million and $ as of December 31, 2021 and 20 20 , respectively , and includes a reserve for community bank loans and CCBX loans . Additionally, agreements with our CCBX partners provide for a credit enhancement against losses. When the provision for unfunded commitments is recorded, a recovery receivable is also recorded on the consolidated balance sheet through noninterest income (BaaS fees -credit enhancement). Incurred losses are recorded in the allowance for loan losses, and as the credit enhancement recoveries are received from the CCBX partner, the recovery receivable is relieved. Premises - Premises and equipment are stated at cost less accumulated depreciation. Depreciation expense is computed using the straight-line method based upon the estimated useful lives of the assets. Asset lives range from three to thirty-nine years Leasehold improvements are amortized over the expected term of the lease or the estimated useful life of the improvement, whichever is less. Maintenance Transfers - Transfers of an entire financial asset are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when: (1) a group of financial assets or a participating interest in an entire financial asset has been isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Other - Other real estate owned and repossessed assets are foreclosed property held pending disposition and is initially recorded at fair value less estimated selling costs when acquired, establishing a new cost basis. At foreclosure, if the fair value of the asset acquired less estimated selling costs is less than the Company’s recorded investment in the related loan, a write-down is recognized through a charge to the allowance for loan losses. Costs of significant property improvements that increase the value of the property are capitalized, whereas costs relating to holding the property are expensed. Valuations are periodically performed by management, and a valuation allowance is established for subsequent declines, which are recorded as a charge to income, if necessary, to reduce the carrying value of the property to its fair value less estimated selling costs. Leases - The Company accounts for its leases in accordance with ASC 842 - Leases . Most leases are recognized on the balance sheet by recording a right-of-use asset and lease liability for each lease. The right-of-use asset represents the right to use the asset under lease for the lease term, and the lease liability represents the contractual obligation to make lease payments. The right-of-use asset is tested for impairment whenever events or changes in circumstances indicate the carrying amount may not be recoverable. As a lessee, the Company enters into operating leases for certain bank branches. The right-of-use assets and lease liabilities are initially recognized based on the net present value of the remaining lease payments which include renewal options where the Company is reasonably certain they will be exercised. The net present value is determined using the incremental collateralized borrowing rate at commencement date. The right-of-use asset is measured at the amount of the lease liability adjusted for any prepaid rent, lease incentives and initial direct costs incurred. The right-of-use asset and lease liability is amortized over the individual lease terms. Lease expense for lease payments is recognized on a straight-line basis over the lease term. For additional information regarding leases, see Note 6. Federal - The Company and the Bank file a consolidated federal income tax return. Deferred federal income taxes result from temporary differences between the tax basis of assets and liabilities, and their reported amounts in the financial statements. Deferred taxes are temporary differences that will be recognized in future periods. As changes in tax law or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. Taxes are paid by the Bank to the Company based on the separate taxable income of the Bank. The Company and Bank maintain their records on the accrual basis of accounting for financial reporting and for income tax reporting purposes. With few exceptions, the Company is no longer subject to income tax examination for years before 2018. As of December 31, 2021 and 2020, the Stock-based - Compensation expense is recognized for stock options and restricted stock, based on the fair value of these awards at the grant date. A Black-Scholes model is utilized to estimate the fair value of stock options, while the market price of the Company’s common stock at the grant date is used for restricted stock awards and restricted stock units and is determined on the basis of objective criteria including trade data. Compensation cost is recognized over the requisite service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. Earnings per common - Earnings per common share (“EPS”) is computed under the two-class method. Pursuant to the two-class method, nonvested stock based payment awards that contain nonforfeitable rights to dividends or dividend equivalents are participating securities and are included in the computation of EPS. The two-class method is an earnings allocation formula that determines earnings per share for each class of common stock and participating security according to dividends declared (or accumulated) and participation rights in undistributed earnings. Application of the two-class method resulted in the equivalent earnings per share to the treasury method. Basic that Comprehensive - Accounting principles generally require that recognized revenue, expenses, gains, and losses be included in net income. Certain changes in assets and liabilities, such as unrealized gains and losses on available-for-sale investments, are reported as a separate component of the shareholders’ equity section of the balance sheets. Accumulated other comprehensive income consists of only one component: unrealized gains or losses on investment securities available-for-sale. Business Segments For financial reporting purposes, the Company has two segments: The community bank and CCBX. The community bank business is that of a traditional banking institution, gathering deposits and originating loans for portfolio in its market areas. The community bank offers a wide variety of deposit products to their customers. Lending activities include the origination of real estate, commercial and industrial, and consumer loans. Interest income on loans is the Company’s primary source of revenue, and is supplemented by interest income from investment securities, deposit service charges, and other service provided activities. In addition to traditional banking services the Company also has a CCBX segment which provides BaaS offerings that enable broker dealers and digital financial service providers to offer their clients banking services. The performance of the Company is reviewed and monitored by the Company’s executive management on a daily basis and the Board of Directors reviews and monitors the performance of the Company at minimum, on a monthly basis. For additional information regarding the business segments, see Note 21. Advertising - Advertising costs are expensed as incurred or over the period of the campaign/promotion. Advertising costs in the amount of $451,000 and $317,000 were expensed during the year ended December 31, 2021 and 2020, respectively Reclassifications - Certain amounts reported in prior years' consolidated financial statements have been reclassified to conform to the current presentation with no effect on shareholders’ equity or net income.

Recent Accounting Standards

Recent Accounting Standards	12 Months Ended
	Dec. 31, 2021
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recent Accounting Standards	Note 2 - Recent accounting standards Accounting Standards Adopted in 2020 On January 1, 2020, the Company adopted ASU No. 2019-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting Recent Accounting Guidance Not Yet Effective In September 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The amendment is effective for annual periods beginning after December 15, 2020 and interim period within those annual periods. As a smaller reporting company our implementation will be effective January 1, 2023. The Company is actively assessing the data and the model needs and are evaluating the impact of adopting the amendment. The Company expects to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact of the new guidance on the consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2021
Investments Debt And Equity Securities [Abstract]
Investment Securities	Note 3 - Investment Securities The amortized cost and fair values of investment securities at the date indicated are as follows: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (dollars in thousands) December 31, 2021 Available-for-sale U.S. Treasury securities $ 34,999 $ - $ (1 ) $ 34,998 U.S. Agency collateralized mortgage obligations 68 2 - 70 U.S. Agency residential mortgage-backed securities 3 - - 3 Municipals 252 4 - 256 Total available-for-sale securities 35,322 6 (1 ) 35,327 Held-to-maturity U.S. Agency residential mortgage-backed securities 1,296 52 - 1,348 Total investment securities $ 36,618 $ 58 $ (1 ) $ 36,675 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (dollars in thousands) December 31, 2020 Available-for-sale U.S. Treasury securities $ 19,997 $ 31 $ - $ 20,028 U.S. Agency collateralized mortgage obligations 96 4 - 100 U.S. Agency residential mortgage-backed securities 10 - - 10 Municipals 254 7 - 261 Total available-for-sale securities 20,357 42 - 20,399 Held-to-maturity U.S. Agency residential mortgage-backed securities 2,848 109 - 2,957 Total investment securities $ 23,205 $ 151 $ - $ 23,356 The amortized cost and fair value of debt securities at December 31, 2021, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers in mortgage backed securities or obligations may have the right to call or prepay obligations with or without call or prepayment penalties. Mortgage-backed securities and collateralized mortgage obligations are shown separately, since they are not due at a single maturity date. Available-for-Sale Held-to-Maturity Amortized Cost Fair Value Amortized Cost Fair Value (dollars in thousands) Amounts maturing in One year or less $ 34,999 $ 34,998 $ - $ - After one year through five years 252 256 - - 35,251 35,254 - - U.S. Agency residential mortgage-backed securities and collateralized mortgage obligations 71 73 1,296 1,348 $ 35,322 $ 35,327 $ 1,296 $ 1,348 Investment securities with amortized cost of $36.0 million and $22.0 million at December 31, 2021 and December 31, 2020 respectively, were pledged to secure public deposits and for other purposes as required or permitted by law. During the year ended December 31, 2021, a total of 16 U.S. Treasury Bills were There were no sales of investments during the year ended December 31, 2021 or December 31, 2020. Information pertaining to securities with gross unrealized losses at the dates indicated, aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows: Less Than 12 Months 12 Months or Greater Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses (dollars in thousands) December 31, 2021 Available-for-sale U.S. Treasury securities $ 34,998 $ (1 ) $ - $ - $ 34,998 $ (1 ) Total investment securities $ 34,998 $ (1 ) $ - $ - $ 34,998 $ (1 ) At December 31, 2021 and December 31, 2020, there were four and zero securities, respectively, in an unrealized loss position. Unrealized losses have not been recognized into income because management does not intend to sell and does not expect it will be required to sell the investments. The decline is largely due to changes in market conditions and interest rates, rather than credit quality. The fair value is expected to recover as the underlying securities in the portfolio approach maturity date and market conditions improve. The Company does not consider these securities to be other than temporarily impaired at December 31, 2021.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses (“ALLL”)	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Loans and Allowance for Loan Losses (“ALLL”)	Note 4 - Loans and Allowance for Loan Losses (“ALLL”) The composition of the loan portfolio is as follows as of the periods indicated: December 31, December 31, 2021 2020 (dollars in thousands) Commercial and industrial loans $ 419,060 $ 539,200 Real estate loans: Construction, land, and land development loans 183,594 94,423 Residential real estate loans 204,389 143,869 Commercial real estate loans 835,587 774,925 Consumer and other loans 108,871 3,916 Gross loans receivable 1,751,501 1,556,333 Net deferred origination fees and premiums (8,766 ) (9,195 ) Loans receivable $ 1,742,735 $ 1,547,138 Included in commercial and industrial loans are Paycheck Protection Program (“PPP”) loans of $111.8 million and $365.8 million at December 31, 2021 and December 31, 2020, respectively. PPP loans are 100% guaranteed by the SBA. Also included in commercial and industrial loans is $202.9 million and $65.6 million in capital call lines, as of December 31, 2021 and December 31, 2020, respectively, provided to venture capital firms through one of our BaaS clients. These loans are secured by the capital call rights and are individually underwritten to the Bank’s credit standards and the underwriting is reviewed by the Bank on every line. Consumer and other loans includes overdrafts of $1.3 million and $31,000 at December 31, 2021 and December 31, 2020, respectively. Community bank overdrafts were $13,000 and $31,000 at December 31, 2021 and December 31, 2020, respectively and CCBX overdrafts were $1.3 million and $0 at December 31, 2021 and December 31, 2020, respectively. The Company has pledged loans totaling $183.5 million and $326.7 million at December 31, 2021 and December 31, 2020, respectively, for borrowing lines at the FHLB and FRB. The balance of SBA and USDA loans and participations serviced for others totaled $19.3 million and $20.6 million at December 31, 2021 and December 31, 2020, respectively. The balance of Main Street Lending Program (“MSLP”) loans participated and serviced totaled $ 56.3 million The Company, at times, purchases individual whole loans at fair value as of the acquisition date. Purchased loans with remaining balances totaled $12.8 million and $19.3 million as of December 31, 2021 and December 31, 2020, respectively. Unamortized premiums totaled $223,000 and $306,000 as of December 31, 2021 and December 31, 2020, respectively, and are amortized into interest income over the life of the loans. These loans are included in the applicable loan category depending upon the collateral and purpose of the individual loan. The Company has purchased participation loans with remaining balances totaling $27.9 million and $44.9 million as of December 31, 2021 and December 31, 2020, respectively. These loans are included in the applicable loan category depending upon the collateral and purpose of the individual loan. The Company purchase loans from a CCBX partner, at par, through agreements with that CCBX partner, and those loans had a remaining balance of $59.7 million as of December 31, 2021 and are included in consumer loans. The Company recorded a receivable from the purchaser, which is secured by small dollar consumer and business loans. These loans were purchased in 2021, therefore there was no balance at December 31, 2020. The following is a summary of the Company’s loan portfolio segments: Commercial and industrial loans - Commercial and industrial loans are secured by business assets including inventory, receivables and machinery and equipment of businesses located generally in the Company’s primary market area and capital calls on venture and investment funds. Loan types include PPP loans, revolving lines of credit, term loans, and loans secured by liquid collateral such as cash deposits or marketable securities. The Company also issues letters of credit on behalf of its customers. Risk arises primarily due to the difference between expected and actual cash flows of the borrowers. In addition, the recoverability of the Company’s investment in these loans is also dependent on other factors primarily dictated by the type of collateral securing these loans. The fair value of the collateral securing these loans may fluctuate as market conditions change. In the case of loans secured by accounts receivable, the recovery of the Company’s investment is dependent upon the borrower’s ability to collect amounts due from its customers. For the year ended December 31, 2021 $202.9 million in CCBX capital call lines are included in commercial and industrial loans compared to $65.6 million at December 31, 2020. Capital call lines are provided to venture capital firms. These loans are secured by the capital call rights and are individually underwritten to the Bank’s credit standards and the underwriting is reviewed by the Bank on every line/loan. Construction, land and land development loans – The Company originates loans for the construction of 1-4 family, multifamily, and CRE properties in the Company’s market area. Construction loans are considered to have higher risks due to construction completion and timing risk, the ultimate repayment being sensitive to interest rate changes, government regulation of real property and the availability of long-term financing. Additionally, economic conditions may impact the Company’s ability to recover its investment in construction loans, as adverse economic conditions may negatively impact the real estate market, which could affect the borrower’s ability to complete and sell the project. Additionally, the fair value of the underlying collateral may fluctuate as market conditions change. The Company occasionally originates land loans for the purpose of facilitating the ultimate construction of a home or commercial building. The primary risks include the borrower’s ability to pay and the inability of the Company to recover its investment due to a material decline in the fair value of the underlying collateral. Residential real estate - Residential real estate includes various types of loans for which the Company holds real property as collateral. Included in this segment are multi-family loans, first lien single family loans, which the Company occasionally purchases to diversify its loan portfolio, and rental portfolios secured by one-to-four family homes. The primary risks of residential real estate loans include the borrower’s inability to pay, material decreases in the value of the collateral, and significant increases in interest rates which may make the loan unprofitable. For the year ended December 31, 2021 $36.9 million in CCBX loans are included in residential real estate loans, compared to $0 at December 31, 2020. Commercial real estate (includes owner occupied and nonowner occupied) - Commercial real estate includes various types of loans for which the Company holds real property as collateral. The primary risks of commercial real estate loans include the borrower’s inability to pay, material decreases in the value of the collateralized real estate and significant increases in interest rates, which may make the real estate loan unprofitable. Commercial real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy. Consumer and other loans – The Company originates a limited number of consumer loans, generally for banking customers only, which consist primarily of lines of credit, saving account secured loans, loans to non-depository financial institutions and auto loans. This loan category also includes overdrafts. Repayment of these loans is dependent on the borrower’s ability to pay and the fair value of the underlying collateral. For the year ended December 31, 2021 $106.8 million in CCBX loans are included in consumer and other loans, compared to $67,000 at December 31, 2020. CCBX loans include credit cards, consumer term loans, and lines of credit. The following table illustrates an age analysis of past due loans as of the dates indicated: 30-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total Loans Recorded Investment 90 Days or More Past Due and Still Accruing (dollars in thousands) December 31, 2021 Commercial and industrial loans $ 259 $ 38 $ 297 $ 418,763 $ 419,060 $ - Real estate loans: Construction, land and land development loans - - - 183,594 183,594 - Residential real estate loans 809 94 903 203,486 204,389 39 Commercial real estate loans - - - 835,587 835,587 - Consumer and other loans 3,901 1,467 5,368 103,503 108,871 1,467 $ 4,969 $ 1,599 $ 6,568 $ 1,744,933 $ 1,751,501 $ 1,506 Less net deferred origination fees and premiums (8,766 ) Loans receivable $ 1,742,735 30-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total Loans Recorded Investment 90 Days or More Past Due and Still Accruing (dollars in thousands) December 31, 2020 Commercial and industrial loans $ 133 $ 537 $ 670 $ 538,530 $ 539,200 $ - Real estate loans: Construction, land and land development loans 1 - 1 94,422 94,423 - Residential real estate loans 1,108 60 1,168 142,701 143,869 - Commercial real estate loans - - - 774,925 774,925 - Consumer and other loans - - - 3,916 3,916 - $ 1,242 $ 597 $ 1,839 $ 1,554,494 $ 1,556,333 $ - Less net deferred origination fees and premiums (9,195 ) Loans receivable $ 1,547,138 CCBX loans are reported using pool accounting and are not subject to impairment analysis. The following table is a summary of information pertaining to impaired loans as of the period indicated: Unpaid Contractual Principal Balance Recorded Investment With No Allowance Recorded Investment With Allowance Total Recorded Investment Related Allowance (dollars in thousands) December 31, 2021 Commercial and industrial loans $ 173 $ - $ 166 $ 166 $ 132 Real estate loans: Residential real estate loans 69 55 - 55 - Total $ 242 $ 55 $ 166 $ 221 $ 132 December 31, 2020 Commercial and industrial loans $ 834 $ 537 $ - $ 537 $ - Real estate loans: Residential real estate loans 188 175 - 175 - Total $ 1,022 $ 712 $ - $ 712 $ - The following tables summarize the average recorded investment and interest income recognized on impaired loans by loan class for the year ended December 31, 2021 and 2020: December 31, 2021 December 31, 2020 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized (dollars in thousands) Commercial and industrial loans $ 498 $ - $ 719 $ - Real estate loans: Construction, land and land development - - 1,110 - Residential real estate 143 - 165 - Commercial real estate - - 136 - Consumer loans - - - - Total $ 641 $ - $ 2,130 $ - The Company grants restructurings in response to borrower financial difficulty, and generally provides for a temporary modification of loan repayment terms. The restructured loans on accrual status represent the only impaired loans accruing interest. In order for a restructured loan to be considered for accrual status, the loan’s collateral coverage generally will be greater than or equal to 100% of the loan balance, the loan is current on payments, and the borrower must either prefund an interest reserve or demonstrate the ability to make payments from a verified source of cash flow for an extended period of time, usually at least six months in duration. No loans were restructured in the year ended December 31, 2021 and December 31, 2020 that qualified as troubled debt restructurings. Pursuant to guidance from the federal bank regulatory agencies, the Company deferred or modified payments on existing loans to assist customers financially during the COVID-19 pandemic and economic shutdown. As of December 31, 2021 all deferred and modified loans during the COVID-19 pandemic have either returned to active status or paid off. In accordance with GAAP, the CARES Act, as amended by the Consolidated Appropriations Act, 2021, and interagency guidance issued on March 22, 2020 and April 7, 2020, these short-term modifications, made on a good faith basis in response to the COVID-19 pandemic to borrowers that were current prior to any relief, were not considered TDRs. When loans are placed on nonaccrual status, all accrued interest is reversed from current period earnings. Payments received on nonaccrual loans are generally applied as a reduction to the loan principal balance. If the likelihood of further loss is removed, the Company will recognize interest on a cash basis only. Loans may be returned to accruing status if the Company believes that all remaining principal and interest is fully collectible and there has been at least six months of sustained repayment performance since the loan was placed on nonaccrual. An analysis of nonaccrual loans by category consisted of the following at the periods indicated: December 31, December 31, 2021 2020 (dollars in thousands) Commercial and industrial loans $ 166 $ 537 Real estate loans: Residential real estate loans 55 175 Total nonaccrual loans $ 221 $ 712 Credit Quality and Credit Risk Federal regulations require that the Company periodically evaluate the risks inherent in its loan portfolio. In addition, the Company’s regulatory agencies have authority to identify problem loans and, if appropriate, require them to be reclassified. There are three classifications for problem loans: Substandard, Doubtful, and Loss. Substandard loans have one or more defined weaknesses and are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful loans have the weaknesses of loans classified as Substandard, with additional characteristics that suggest the weaknesses make collection or recovery in full after liquidation of collateral questionable on the basis of currently existing facts, conditions, and values. There is a high possibility of loss in loans classified as Doubtful. A loan classified as Loss is considered uncollectible and of such little value that continued classification of the credit as a loan is not warranted. If a loan or a portion thereof is classified as Loss, it must be charged-off, meaning the amount of the loss is charged against the allowance for loan losses, thereby reducing that reserve. The Company also classifies some loans as Watch or Other Loans Especially Mentioned (“OLEM”). Loans classified as Watch are performing assets and classified as pass credits but have elements of risk that require more monitoring than other performing loans and are reported in the OLEM column in the following table. Loans classified as OLEM are assets that continue to perform but have shown deterioration in credit quality and require close monitoring. Loans by credit quality risk rating are as follows as of the periods indicated: Pass Other Loans Especially Mentioned Sub- Standard Doubtful Total (dollars in thousands) December 31, 2021 Commercial and industrial loans $ 416,642 $ 2,180 $ 238 $ - $ 419,060 Real estate loans: Construction, land, and land development loans 183,594 - - - 183,594 Residential real estate loans 204,173 122 94 - 204,389 Commercial real estate loans 824,676 10,911 - - 835,587 Consumer and other loans 107,404 - 1,467 - 108,871 $ 1,736,489 $ 13,213 $ 1,799 $ - 1,751,501 Less net deferred origination fees (8,766 ) Loans receivable $ 1,742,735 December 31, 2020 Commercial and industrial loans $ 538,149 $ 397 $ 654 $ - $ 539,200 Real estate loans: Construction, land, and land development loans 94,423 - - - 94,423 Residential real estate loans 143,540 154 175 - 143,869 Commercial real estate loans 763,647 11,278 - - 774,925 Consumer and other loans 3,916 - - - 3,916 $ 1,543,675 $ 11,829 $ 829 $ - 1,556,333 Less net deferred origination fees (9,195 ) Loans receivable $ 1,547,138 Allowance for Loan Losses The Company’s ALLL covers estimated credit losses on individually evaluated loans that are determined to be impaired as well as estimated probable losses inherent in the remainder of the loan portfolio. The ALLL for the community bank is prepared using the information provided by the Company’s credit review process and our historical loss data, together with data from peer institutions and economic information gathered from published sources. The loan portfolio is segmented into groups of loans with similar risk profiles. Each segment possesses varying degrees of risk based on the type of loan, the type of collateral, and the sensitivity of the borrower or industry to changes in external factors such as economic conditions. An estimated loss rate calculated from the community bank’s actual historical loss rates adjusted for current portfolio trends, economic conditions, and other relevant internal and external factors, is applied to each group’s aggregate loan balances. CCBX loans have a higher level of expected losses than our community bank loans which is reflected in the factors for the allowance for loan losses. Estimated loss rates for CCBX loans varies by partner, and might be based on actual partner experience, realized losses or losses for comparable products or industry averages. .Many of the agreements with our CCBX partners provide for a credit enhancement which protects the Bank by absorbing incurred losses. In accordance with accounting guidance, we estimate and record a provision for probable losses for these CCBX loans. When the provision for loan losses is recorded, a recovery receivable is also recorded on the balance sheet through noninterest income (BaaS fees -credit enhancement). Incurred losses are recorded in the allowance for loan losses, and as the credit enhancement recoveries are received from the CCBX partner, the recovery receivable is relieved. The following tables summarize the allocation of the allowance for loan loss, as well as the activity in the allowance for loan loss attributed to various segments in the loan portfolio, as of and for the year ended December 31, 2021. Commercial and Industrial Construction, Land, and Land Development Residential Real Estate Commercial Real Estate Consumer and Other Unallocated Total (dollars in thousands) ALLL balance, December 31, 2020 $ 3,353 $ 3,545 $ 3,410 $ 7,810 $ 127 $ 1,017 $ 19,262 Provision for loan losses or (recapture) 23 3,439 1,267 (1,220 ) 7,276 (870 ) 9,915 3,376 6,984 4,677 6,590 7,403 147 29,177 Loans charged-off (222 ) - (79 ) - (339 ) - (640 ) Recoveries of loans previously charged-off 67 - - - 28 - 95 Net (charge-offs) recoveries (155 ) - (79 ) - (311 ) - (545 ) ALLL balance, December 31, 2021 $ 3,221 $ 6,984 $ 4,598 $ 6,590 $ 7,092 $ 147 $ 28,632 ALLL amounts allocated to Individually evaluated for impairment $ 132 $ - $ - $ - $ - $ - $ 132 Collectively evaluated for impairment 3,089 6,984 4,598 6,590 7,092 147 28,500 ALLL balance, December 31, 2021 $ 3,221 $ 6,984 $ 4,598 $ 6,590 $ 7,092 $ 147 $ 28,632 Loans individually evaluated for impairment $ 166 $ - $ 55 $ - $ - $ 221 Loans collectively evaluated for impairment 418,894 183,594 204,334 835,587 108,871 1,751,280 Loan balance, December 31, 2021 $ 419,060 $ 183,594 $ 204,389 $ 835,587 $ 108,871 $ 1,751,501 The following tables summarize the allocation of the allowance for loan loss, as well as the activity in the allowance for loan loss attributed to various segments in the loan portfolio, as of and for the year ended December 31, 2020: Commercial and Industrial Construction, Land, and Land Development Residential Real Estate Commercial Real Estate Consumer and Other Unallocated Total (dollars in thousands) ALLL balance, December 31, 2019 $ 2,366 $ 2,745 $ 2,069 $ 3,126 $ 104 $ 1,060 $ 11,470 Provision for loan losses or (recapture) 1,123 1,169 1,341 4,684 34 (43 ) 8,308 3,489 3,914 3,410 7,810 138 1,017 19,778 Loans charged-off (141 ) (369 ) - - (15 ) - (525 ) Recoveries of loans previously charged-off 5 - - - 4 - 9 Net (charge-offs) recoveries (136 ) (369 ) - - (11 ) - (516 ) ALLL balance, December 31, 2020 $ 3,353 $ 3,545 $ 3,410 $ 7,810 $ 127 $ 1,017 $ 19,262 ALLL amounts allocated to Individually evaluated for impairment $ - $ - $ - $ - $ - $ - $ - Collectively evaluated for impairment 3,353 3,545 3,410 7,810 127 1,017 19,262 ALLL balance, December 31, 2020 $ 3,353 $ 3,545 $ 3,410 $ 7,810 $ 127 $ 1,017 $ 19,262 Loans individually evaluated for impairment $ 537 $ - $ 175 $ - $ - $ 712 Loans collectively evaluated for impairment 538,663 94,423 143,694 774,925 3,916 1,555,621 Loan balance, December 31, 2020 $ 539,200 $ 94,423 $ 143,869 $ 774,925 $ 3,916 $ 1,556,333

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2021
Property Plant And Equipment [Abstract]
Premises and Equipment	Note 5 – Premises and Equipment The investment in premises and equipment consisted of the following at December 31: 2021 2020 (dollars in thousands) Land $ 2,672 $ 3,051 Buildings 10,086 10,533 Leasehold Improvements 4,117 3,952 Furniture 2,473 2,273 Equipment 5,234 4,788 Software 934 703 Projects in process 1,375 169 . 26,891 25,469 Less accumulated depreciation and amortization (9,672 ) (8,361 ) Premises and equipment, net $ 17,219 $ 17,108 Depreciation and amortization on premises and equipment charged to expense totaled $1.6 million and $1.4 million for the years ended December 31, 2021 and 2020, respectively.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	Note 6 – Leases The Company has committed to rent premises used in business operations under non-cancelable operating leases and determines if an arrangement meets the definition of a lease upon inception. Operating lease right-of-use (“ROU”) assets represent a right to use an underlying asset for the contractual lease term. Operating lease liabilities represent an obligation to make lease payments arising from the lease. Any new operating leases entered into will be recognized as an operating lease ROU asset and operating lease liability at the commencement date of the new lease. The Company’s leases do not provide an implicit interest rate, therefore the Company used its incremental collateralized borrowing rates commensurate with the underlying lease terms to determine the present value of operating lease liabilities. The weighted average discount rate used to discount operating lease liabilities at December 31, 2021 was 3.4%. The Company’s operating lease agreements contain both lease and non-lease components, which are generally accounted for separately. The Company’s lease agreements do not contain any residual value guarantees. Operating leases with original terms of 12 months or less are not included in ROU assets and operating lease liabilities recorded in our consolidated balance sheets. Operating lease terms include options to extend when it is reasonably certain that the Company will exercise such options, determined on a lease-by-lease basis. As of December 31, 2021, the Company has one sublease that has not yet commenced. At December 31, 2021, lease expiration dates ranged from less than one year to 23 years, with additional renewal options on certain leases typically ranging from 5 to 10 years. At December 31, 2021, the dollar weighted average remaining lease term for the Company’s operating leases was 8.5 years. Rental expense for operating leases is recognized on a straight-line basis over the lease term and amounted to $1.4 million and $1.5 million, respectively, for the years ended December 31, 2021 and 2020. Variable lease components, such as fair market value adjustments, are expensed as incurred and not included in ROU assets and operating lease liabilities. The following sets forth, as of December 31, 2021, the minimum annual lease payments under the terms of these leases, inclusive of renewal options that the Company is reasonably certain to renew: December 31, (dollars in thousands) 2021 2022 $ 1,280 2023 1,272 2024 864 2025 713 2026 719 2027 and thereafter 2,490 Total lease payments 7,338 Less: amounts representing interest 1,018 Present value of lease liabilities $ 6,320 The Company leases its Downtown Everett facility from related parties (Note 12). Office space at a small number of branches is leased and sub-leased to a few tenants on month-to-month and multi-year leases. Lease and sublease income was $127,000 and $122,000 for 2021 and 2020, respectively. The following table presents the components of total lease expense and operating cash flows for the year ended December 31, 2021: December 31, (dollars in thousands) 2021 Lease expense: Operating lease expense $ 1,283 Variable lease expense 148 Total lease expense (1) $ 1,431 Cash paid: Cash paid reducing operating lease liabilities $ 1,419 (1) Included in net occupancy expense in the Consolidated Statements of Income. The Company entered into a five-year

Deposits

Deposits	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Deposits	Note 7 - Deposits The composition of consolidated deposits consisted of the following at the periods indicated: December 31, December 31, 2021 2020 (dollars in thousands) Demand, noninterest bearing $ 1,355,908 $ 592,261 Now and money market 789,709 658,323 Savings 103,956 77,611 Total core deposits 2,249,573 1,328,195 BaaS brokered deposits 70,757 33,482 Time deposits less than $250,000 31,057 41,145 Time deposits $250,000 and over 12,400 18,485 Total deposits $ 2,363,787 $ 1,421,307 The following table presents the maturity distribution of time deposits as of December 31, 2021 (dollars in thousands): Twelve months $ 33,985 One to two years 4,670 Two to three years 2,723 Three to four years 990 Four to five years 1,089 $ 43,457 Our CCBX partners originate deposits and these deposits are primarily noninterest bearing to us in low interest rate environments, These CCBX deposits will become interest bearing as interest rates increase. As of December 31 st .

Federal Home Loan Bank Advances

Federal Home Loan Bank Advances and Other Borrowings	12 Months Ended
	Dec. 31, 2021
Advances From Federal Home Loan Banks [Abstract]
Federal Home Loan Bank Advances and Other Borrowings	Note 8 – Federal Home Loan Bank Advances and Other Borrowings At December 31, 2021 and 2020 the Company had no overnight FHLB advances. As of December 31, 2021, the Company borrowed a total of $25.0 million in FHLB long term advances. This includes a $10.0 million advance that matures in March 2023 March 2025 The following table provides details on FHLB overnight borrowings for the periods indicated: Year Ended December 31, (Dollars in thousands) 2021 2020 Maximum amount outstanding at any month-end during period: FHLB Advances $ 100 $ 2,260 Average outstanding balance during period: FHLB Advances $ - $ 67 Weighted average interest rate during period: FHLB Advances 0.25 % 1.84 % Balance outstanding at end of period: FHLB Advances $ - $ - Weighted average interest rate at end of period: FHLB Advances 0.00 % 0.00 % The following table provides details on FHLB long-term borrowings for the periods indicated: Year Ended December 31, (Dollars in thousands) 2021 2020 Maximum amount outstanding at any month-end during period: FHLB Advances $ 24,999 $ 24,999 Average outstanding balance during period: FHLB Advances $ 24,999 $ 20,669 Weighted average interest rate during period: FHLB Advances 1.13 % 1.13 % Balance outstanding at end of period: FHLB Advances $ 24,999 $ 24,999 Weighted average interest rate at end of period: FHLB Advances 1.13 % 1.13 % The Company has established an $50.0 million unsecured line of credit with interest payable at the then-stated rate, with PCBB, which expires in June 2022 The Company has established a Borrower-in-Custody (BIC) arrangement with the FRB, which is secured by eligible loans, with interest payable at the then-stated rate. At December 31, 2021, the Company had pledged commercial real estate loans totaling $43.4 million, which provided available borrowing capacity of $21.9 million. At December 31, 2020, the Company had pledged commercial real estate loans totaling $43.5 million, which provided available borrowing capacity of $21.2 million. There were no borrowings outstanding on this line of credit at December 31, 2021 or 2020. To bolster the effectiveness of the SBA’s PPP loan program, the Federal Reserve supplied liquidity to participating financial institutions through term financing backed by PPP loans to small businesses. The PPP provided loans to small businesses so that they could keep their employees on the payroll and pay for other allowed expenses. If the borrowers met certain criteria, the loan may be forgiven. The PPPLF extended credit to eligible financial institutions that originated PPP loans, taking the loans as collateral at face value. The interest rate was 0.35% and as PPP loans were paid down, the borrowing line also had to be paid down. The Company paid the PPPLF borrowing line in full in June 2021, therefore there was no outstanding balance as of December 31, 2021. As of December 31, 2020, the Bank had $153.7 million in outstanding in PPPLF advances. The following tables provides details on PPPLF borrowings for the periods indicated: Year Ended December 31, (Dollars in thousands) 2021 2020 Maximum amount outstanding at any month-end during period: PPPLF Advances $ 185,894 $ 202,595 Average outstanding balance during period: PPPLF Advances $ 68,699 $ 124,068 Weighted average interest rate during period: PPPLF Advances 0.35 % 0.35 % Balance outstanding at end of period: PPPLF Advances $ - $ 153,716 Weighted average interest rate at end of period: PPPLF Advances 0.00 % 0.35 %

Subordinated Debt

Subordinated Debt	12 Months Ended
	Dec. 31, 2021
Subordinated Borrowings [Abstract]
Subordinated Debt	Note 9 – Subordinated Debt At December 31, 2021 and 2020, the Company’s subordinated debt was as follows: Aggregate Principal Amount December 31, 2021 Aggregate Principal Amount December 31, 2020 (dollars in thousands) Total liability, at par $ 25,000 $ 10,000 Less: unamortized debt issuance costs (712 ) (7 ) Total liability, at carrying value $ 24,288 $ 9,993 Stated Maturity: September 1, 2031 August 1, 2026 Interest Rate: Fixed 3.375% 5 years; then 3-month SOFR +2.76% starting September 1, 2026 Fixed 5.65% 5 years; then Wall Street Prime +2.5% starting August 1, 2021 On August 18, 2021, the Company entered into a $25.0 million subordinated note purchase agreement. The note matures on September 1, 2031, is fixed for five years at 3.375%, and thereafter is variable at a floating rate, calculated quarterly, based on the 3-month SOFR +2.76%. Proceeds from the note were used in part to repay an existing $10.0 million in subordinated debt at a higher 5.65% interest rate. Interest respectively, $286,000 and

Junior Subordinated Debentures

Junior Subordinated Debentures	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Junior Subordinated Debentures	Note 10 – Junior Subordinated Debentures At December 31, 2021 and 2020, the Company’s junior subordinated debentures were as follows: Coastal (WA) Statutory Trust I Aggregate Principal Amount December 31, 2021 Aggregate Principal Amount December 31, 2020 (dollars in thousands) Total liability, at par $ 3,609 $ 3,609 Less: unamortized debt issuance costs (23 ) (25 ) Total liability, at carrying value $ 3,586 $ 3,584 Stated Maturity: December 15, 2034 Interest Rate Spread: Three-month LIBOR +2.10% On December In January 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting , March 2020, to provide temporary optional expedients and exceptions to the U.S. GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens of the expected market transition from LIBOR and other interbank offered rates to alternative reference rates, such as Secured Overnight Financing Rate. The Company is evaluating alternative reference rate options and the impact of the LIBOR change to this borrowing. The Trust

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Note 11 –Income Taxes The components of the income tax for the Company consisted of the following at December 31: 2021 2020 (dollars in thousands) Current tax expense $ 10,383 $ 5,069 Deferred tax benefit (3,011 ) (1,074 ) Total tax expense $ 7,372 $ 3,995 At December 31, 2021 the current net income tax payable was $1.2 million and at December 31, 2020 the net income tax receivable was $599,000. A reconciliation of the income tax expense (benefit) and the amount computed by applying the statutory federal income tax rate to the income before income taxes is as follows for the year ended December 31: 2021 2020 (dollars in thousands) Amount Rate Amount Rate Federal income tax at statutory rate $ 7,219 21.0 % $ 4,020 21.0 % State income taxes 256 0.7 $ - 0.0 % Effect of tax-exempt interest income (100 ) (0.3 ) (110 ) (0.6 ) Stock-based compensation (43 ) (0.1 ) 51 0.3 Bank owned life insurance earnings (36 ) (0.1 ) (42 ) (0.2 ) Excess executive compensation 58 0.2 - - Other 18 0.1 76 - $ 7,372 21.4 % $ 3,995 20.5 % The Company did not record or accrue any interest and penalties related to income taxes for the years ended December 31, 2021 or 2020. The Company and Bank have entered into a tax allocation agreement, which provides that income taxes shall be allocated between the parties on a monthly basis. The intent of this agreement is that each member of the consolidated group will incur no greater tax liability than it would have incurred on a stand-alone basis. The net deferred tax asset consists of the following temporary differences and carryforward items at December 31: 2021 2020 (dollars in thousands) Deferred tax assets: Allowance for loan losses $ 6,223 $ 4,045 Lease liability 1,374 1,538 Accrued expenses 596 507 Deferred compensation 162 181 Allowance for unfunded commitments 277 131 Nonqualified stock options 107 104 Interest on nonaccrual loans 10 41 Equity investment write-down - 84 Restricted stock options 196 33 Deferred income 58 15 Other 37 - Total deferred tax assets 9,040 6,679 Deferred tax liabilities: Right of use asset (1,327 ) (1,495 ) Depreciation and amortization (661 ) (1,376 ) Net unrealized gain on equity security (233 ) - Net unrealized gain on available-for-sale securities (1 ) (9 ) Total deferred tax liabilities (2,222 ) (2,880 ) Net deferred tax asset $ 6,818 $ 3,799 The determination no At December 31, 2021, the Company had no federal net operating loss carryforwards or tax credit carryforwards. The Company files federal and various state income tax returns. Federal tax returns for the 2018 tax year and later are open for examination. The total amount of unrecognized tax benefits, including interest and penalties, at December 31, 2021 was not material. The amount of tax benefits that would impact the effective rate, if recognized, is not expected to be material. The Company does not anticipate any significant changes with respect to unrecognized tax benefits within the next 12 months.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Text Block [Abstract]
Related Party Transactions	Note 12 – Related Party Transactions During 2021 and 2020, the A summary of loan transactions follows: 2021 2020 (dollars in thousands) Beginning Balance January 1 $ 8,342 $ 10,315 Additions 1,018 1,369 Payments (1,384 ) (566 ) No longer related parties - (2,776 ) Ending Balance December 31 $ 7,976 $ 8,342 The Company held As discussed one facility from a related party in 2021 and 2020

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 13 – Commitments and Contingencies In the credit and standby letters of credit, which are not reflected in the consolidated financial statements. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instruments for commitments to extend credit and standby letters of credit is represented by the contractual or notional amount of those instruments. The Company uses the same credit policies in making such commitments as it does for instruments that are included in the consolidated balance sheets. At December 31, 2021 and 2020, the Financial instruments whose contract amount represents credit risk were as follows at December 31: 2021 2020 (dollars in thousands) Commitments to extend credit: Commercial and industrial loans $ 486,804 $ 189,884 Construction - commercial real estate loans 90,946 69,866 Construction - residential real estate loans 43,339 18,489 Commercial real estate loans 23,248 20,482 Residential real estate loans 101,715 18,128 Other 163,510 1,101 Total commitments to extend credit $ 909,562 $ 317,950 Standby letters of credit $ 3,040 $ 2,754 Equity investment commitments $ 1,090 $ - Commitments of a fee. Since many of the commercial and industrial loan commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation. The type of collateral held varies but may include accounts receivable, inventory, property and equipment, and income- producing commercial properties. Commitments to extend credit on CCBX loans are included in the table above and are summarized below: 2021 2020 (dollars in thousands) Commitments to extend credit: Commercial and industrial loans $ 415,956 $ 128,208 Residential real estate loans 71,453 - Other 162,266 - Total commitments to extend credit $ 649,675 $ 128,208 The Company also has agreements with certain key officers that provide for potential payments upon retirement, disability, termination, change in control and death. Standby letters The Company is primarily in the ordinary course of business. It is the opinion of management that the disposition or ultimate resolution of such claims and lawsuits will not have a material adverse effect on the financial position of the Company. On March 11, 2020, the World Health Organization assessed the COVID-19 outbreak and characterized itas a pandemic. Subsequent to the declaration of the pandemic, a variety of federal, state, and local governments took action in response to the pandemic. These actions continue to develop and change as the COVID-19 pandemic persists. The duration and intensity of the long-term impact of the COVID-19 and resulting impact to the Company is unknown as of December 31, 2021.

Concentration of Credit Risk

Concentration of Credit Risk	12 Months Ended
	Dec. 31, 2021
Risks And Uncertainties [Abstract]
Concentration of Credit Risk	Note 14 – Concentration of Credit Risk Most of the Company’s business activity is with customers who are concentrated in the state of Washington. Investments in municipal securities involve governmental entities within the state. Generally, amounts placed or invested in bank accounts are insured by the FDIC up to $250,000 per depositor for each relationship category at a bank. Uninsured deposits in bank accounts at December 31, 2021 and 2020, totaled $ and $46.0 million, respectively. Loans to the same borrower are generally limited, by state regulations, to 20% of the Bank’s capital and surplus. The Company manages asset and controls credit risk through diversification of the loan portfolio and the application of policies designed to promote sound underwriting and loan monitoring practices. The Company regularly utilizes real estate as collateral to reduce the risk of credit loss in the loan portfolio. As of December 31, 2021 and 2020, the Company has a concentration of credit in commercial real estate. Commercial real estate loans are typically secured by the Bank’s first lien position on the subject property. Standby letters of credit were granted primarily to commercial borrowers.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	Note 15 - Stock-Based Compensation Stock Options and Restricted Stock The 2018 Coastal Financial Corporation Omnibus Plan (2018 Plan) authorizes the Company to grant awards, including but not limited to, stock options, restricted stock units, and restricted stock awards, to eligible employees, directors or individuals that provide service to the Company, up to an aggregate of 500,000 shares of common stock. On May 24, 2021, the Company’s shareholders approved the First Amendment to the 2018 Plan, which increased the authorized plan shares by 600,000. The 2018 Plan replaces both the 2006 Plan and the Directors’ Stock Bonus Plan (2006 Plan). Existing awards will vest under the terms granted and no further awards will be granted under these prior plans. Shares available to be granted under the 2018 plan were 667,440 at December 31, 2021. Stock Option Awards The fair value of each option award is estimated on the date of grant using the Black-Scholes option pricing model that uses the assumptions noted in the following table. Expected volatilities are based on historical volatility of the Company’s stock and other factors. The Company uses the vesting term and contractual life to determine the expected life. The risk-free interest rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. Compensation expense related to unvested stock option awards is reversed at date of forfeiture. There were no new options granted in the years ended December 31, 2021 and 2020. A summary of stock option activity under the Company’s Plan during the year ended December 31, 2021: Options Shares Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (dollars in thousands, except per share amounts) Outstanding at December 31, 2020 749,397 $ 7.75 5.0 $ 9,993 Granted - - Exercised (50,570 ) 7.11 $ 1,177 Forfeited or expired (1) (4,308 ) 7.63 Outstanding at December 31, 2021 694,519 $ 7.79 4.0 $ 29,744 Vested or expected to vest at December 31, 2021 694,519 $ 7.79 4.0 $ 29,744 Exercisable at December 31, 2021 356,945 $ 6.65 2.9 $ 15,695 (1) Includes 2 share rounding adjustment The total intrinsic value (which is the amount by which the stock price exceeds the exercise price) of options exercised during the year ended December 31, 2021 was $1.2 million. The intrinsic value of options exercised during the year ended December 31, 2020 was $253,000. As of December 31, 2021, there was $1.5 million of total unrecognized compensation cost related to nonvested stock options granted under the Plan. Total unrecognized compensation costs is adjusted for unvested forfeitures. The Company expects to recognize that cost over a weighted-average period of approximately 5.1 years. Compensation expense recorded related to stock options was $357,000 and $405,000 for the years ended December 31, 2021 and 2020, respectively. Restricted Stock Units In January 2021, the Company granted 84,258 restricted stock units under the 2018 Plan to employees, which vest ratably over 5 years. In April 2021, the Company granted 1,000 restricted stock units under the 2018 Plan to an employee, which vest ratably over 5 years. In October 2021, the Company granted 100,000 performance-based restricted stock units under the 2018 Plan to an employee, that vest on October 4, 2027, the quantity of which is dependent upon achievement of specified performance goals. Restricted stock units provide for an interest in Company common stock to the recipient, the underlying stock is not issued until certain conditions are met. Vesting requirements include time-based, performance-based, or market-based conditions. Recipients of restricted stock units do not pay any cash consideration to the Company for the units and the holders of the restricted units do not have voting rights. The fair value of time-based and performance-based units is equal to the fair market value of the Company’s common stock on the grant date. The fair value of market-based units is estimated on the grant date using the Monte Carlo simulation model. Compensation expense is recognized over the vesting period that the awards are based. Restricted stock units are nonparticipating securities. As of December 31, 2021, there was $5.2 million of total unrecognized compensation cost related to nonvested restricted stock units. The Company expects to recognize that cost over the remaining weighted-average vesting period of approximately 5.7 years. Compensation expense recorded related to restricted stock units was $616,000 and $151,000 for the year ended December 31, 2021 and 2020, respectively. A summary of the Company’s nonvested restricted stock units at December 31, 2021 and changes during the year is presented below: Nonvested shares Shares Weighted- Average Grant Date Fair Value Total or Aggregate Intrinsic Value was(dollars in thousands, except per share amounts) Nonvested shares at December 31, 2020 90,249 $ 17.25 $ 352 Granted 189,258 23.88 Forfeited (1,312 ) 19.98 Vested (8,351 ) 17.42 Nonvested shares at December 31, 2021 269,844 $ 21.70 $ 7,803 The fair value of restricted stock awards is equal to the fair value of the Company’s stock at the date of grant. Compensation expense is recognized over the vesting period that the awards are based. Restricted stock awards are participating securities. Restricted Stock Awards Employees In January 2021, there were 5,978 shares granted to an employee at an estimated fair value of $20.91 per share, which vested immediately. The fair value of restricted stock awards is equal to the fair value of the Company’s stock at the date of grant. Compensation expense is recognized over the vesting period that the awards are based. Restricted stock awards are participating securities. As of December 31, 2021, there was $54,000 of total unrecognized compensation cost related to nonvested restricted stock awards. The Company expects to recognize that cost over the remaining weighted-average vesting period of approximately 2.1 years. Compensation expense recorded related to restricted stock awards was $134,000 and $7,000 for the years ended December 31, 2021 and 2020, respectively. Director’s Stock Bonus Stock was previously granted to directors who attended at least 75% of the scheduled board meetings during the prior year. Grants cliff vest over one or two years from date awarded, contingent on the director still being a director of the Company. During the vesting period, the grants are considered participating securities. Eligible directors are granted stock with a total market value of $15,000, and the Board Chair is granted stock with a total market value of $25,000. Stock will be granted as of each annual meeting date and will cliff vest one day prior to the next annual meeting date. For stock granted in 2020, $5,000 was subject to a two-year In May 2021, there were 4,736 shares granted to nine directors at an estimated fair value of $ 30.67 per share. As of December 31, 2021, there was $ 57,000 of total unrecognized compensation expense related to director stock awards. Compensation expense recorded related to the Plan totaled $ 173,000 and $ 162,000 for the years ended December 31, 2021 and 2020, respectively . A summary of the Company’s nonvested shares at December 31, 2021 and changes during the year is presented below: Nonvested shares Shares Weighted- Average Grant Date Fair Value Aggregate Intrinsic Value (dollars in thousands, except per share amounts) Nonvested shares at December 31, 2020 14,377 $ 16.15 $ 70 Granted 10,714 25.22 Forfeited - - Vested (14,888 ) 17.46 Nonvested shares at December 31, 2021 10,203 $ 23.78 $ 274

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2021
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	Note 16 – Employee Benefit Plans 401(k) - The Company has a combined 401(k) and profit-sharing plan covering substantially all employees. Contributions to the 401(k) plan may consist of matching contributions for employees. Match eligibility coincides with the first of the month following hire date in accordance with the 401(k) plan. Matching contributions are usually equal to a percentage of employee compensation. The and sets 401(k) contributions Deferred - The Company established a deferred compensation plan in 2003 for certain management personnel. Two former employees were covered by this plan and the plan is now distributing benefits to these retired individuals. The plan was designed to help supplement retirement benefits for participants. The benefits may be funded by bank-owned life insurance policies. The life insurance policies had a cash surrender value of $12.3 million and $7.1 million at December 31, 2021 and 2020, respectively. Liabilities to employees, which are being accrued over the life of the participant’s Plan, were $744,000 and $863,000 at December 31, 2021 and 2020, respectively. Compensation expense related to this Plan was $56,000 and $64,000 for the years ended December 31, 2021 and 2020, respectively. Payments of accrued benefits totaling $175,000 were made during 2021 and 2020.

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Regulatory Matters	Note 17 - Regulatory Banks are Quantitative consolidated Under the ratio, and leverage ratio. There have been no conditions or events since December 31, 2021 , that management believes would change the Bank’s category. Under capital adequacy regulations, of common equity Tier 1 capital of at least 2.5% The Company and Bank’s actual unts and ratios are as follows: Actual Minimum Required for Capital Adequacy Purposes (1) Required to be Well Capitalized Under the Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) December 31, 2021 Leverage Capital (to average assets) Consolidated $ 204,585 8.07 % $ 101,460 4.00 % $ 126,826 5.00 % Bank Only 201,783 7.96 % 101,350 4.00 % 126,687 5.00 % Common Equity Tier 1 risk-based capital ratio (to risk-weighted assets) Consolidated 201,085 11.06 % 81,834 4.50 % 118,205 6.50 % Bank Only 201,783 11.12 % 81,623 4.50 % 117,900 6.50 % Tier 1 Capital (to risk-weighted assets) Consolidated 204,585 11.25 % 109,112 6.00 % 145,483 8.00 % Bank Only 201,783 11.12 % 108,830 6.00 % 145,107 8.00 % Total Capital (to risk-weighted assets) Consolidated 252,405 13.88 % 145,483 8.00 % 181,854 10.00 % Bank Only 224,545 12.38 % 145,107 8.00 % 181,384 10.00 % December 31, 2020 Leverage Capital (to average assets) Consolidated $ 143,532 9.05 % $ 63,454 4.00 % $ 79,318 5.00 % Bank Only 147,262 9.29 % 63,421 4.00 % 79,276 5.00 % Common Equity Tier 1 risk-based capital ratio (to risk-weighted assets) Consolidated 140,032 11.27 % 55,935 4.50 % 80,795 6.50 % Bank Only 147,262 11.86 % 55,879 4.50 % 80,713 6.50 % Tier 1 Capital (to risk-weighted assets) Consolidated 143,532 11.55 % 74,580 6.00 % 99,440 8.00 % Bank Only 147,262 11.86 % 74,505 6.00 % 99,340 8.00 % Total Capital (to risk-weighted assets) Consolidated 169,123 13.61 % 99,440 8.00 % 124,300 10.00 % Bank Only 162,837 13.11 % 99,340 8.00 % 124,175 10.00 % (1) Presents the minimum capital adequacy requirements that apply to the Bank (excluding the capital conservation buffer) and that would apply to the Company if it were not eligible to operate under the Small Bank Holding Company Policy Statement.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 18 - Fair Value Measurements The Company measures and discloses certain assets and liabilities at fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (that is, not a forced liquidation or distressed sale). GAAP establishes a consistent framework for measuring fair value and disclosure requirements about fair value measurements. Among other things, the accounting standard requires the reporting entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s estimates for market assumptions. These two types of inputs create the following fair value hierarchy: • Level 1 – Quoted prices in active markets for identical instruments. An active market is a market in which transactions occur with sufficient frequency and volume to provide pricing information on an ongoing basis. A quoted price in an active market provides the most reliable evidence of fair value and shall be used to measure fair value whenever available. • Level 2 – Observable inputs other than Level 1 including quoted prices in active markets for similar instruments, quoted prices in less active markets for identical or similar instruments, or other observable inputs that can be corroborated by observable market data. • Level 3 – Unobservable inputs supported by little or no market activity for financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation; also includes observable inputs from non-binding single dealer quotes not corroborated by observable market data. The estimated fair value amounts of financial instruments have been determined by the Company using available market information and appropriate valuation methodologies. However, considerable judgment is required to interpret data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts the Company could realize at a future date. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts. In addition, reasonable comparability between financial institutions may not be likely due to the wide range of permitted valuation techniques and numerous estimates that must be made given the absence of active secondary markets for certain financial instruments. This lack of uniform valuation methodologies also introduces a greater degree of subjectivity to these estimated fair values. The following tables present estimated fair values of the Company’s financial instruments as of the period indicated, whether or not recognized or recorded in the consolidated balance sheets at the period indicated: December 31, 2021 Fair Value Measurements Using Carrying Value Estimated Fair Value Level 1 Level 2 Level 3 (dollars in thousands) Financial assets Cash and due from banks $ 14,496 $ 14,496 $ 14,496 - - Interest earning deposits with other banks 798,665 798,665 798,665 - - Investment securities 36,623 36,675 34,998 1,677 - Other investments 8,478 8,478 - 6,156 2,322 Loans receivable, net 1,714,103 1,686,124 - - 1,686,124 Accrued interest receivable 8,105 8,105 - 8,105 - Financial liabilities Deposits $ 2,363,787 2,363,624 $ - $ 2,363,624 $ - FHLB advances 24,999 24,447 - 24,447 - Subordinated debt 24,288 21,891 - 21,891 - Junior subordinated debentures 3,586 2,771 - 2,771 - Accrued interest payable 357 357 - 357 - December 31, 2020 Fair Value Measurements Using Carrying Value Estimated Fair Value Level 1 Level 2 Level 3 (dollars in thousands) Financial assets Cash and due from banks $ 18,965 $ 18,965 $ 18,965 - - Interest earning deposits with other banks 144,152 144,152 144,152 - - Investment securities 23,247 23,356 20,028 3,328 - Other investments 6,059 6,059 - 5,209 850 Loans receivable, net 1,527,876 1,535,541 - - 1,535,541 Accrued interest receivable 8,616 8,616 - 8,616 - Financial liabilities Deposits $ 1,421,307 1,421,534 $ - $ 1,421,534 $ - Paycheck Protection Program Liquidity Facility 153,716 153,716 153,716 FHLB advances 24,999 24,787 24,787 Subordinated debt 9,993 9,913 - 9,913 - Junior subordinated debentures 3,584 2,707 - 2,707 - Accrued interest payable 531 531 - 531 - Items measured at fair value on a recurring basis – The following fair value hierarchy table presents information about the Company’s assets that are measured at fair value on a recurring basis at the dates indicated: Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) December 31, 2021 Available-for-sale U.S. Treasury securities $ 34,998 $ - $ - $ 34,998 U.S. Agency collateralized mortgage obligations - 70 - 70 U.S. Agency residential mortgage-backed securities - 3 - 3 Municipals - 256 - 256 $ 34,998 $ 329 $ - $ 35,327 December 31, 2020 Available-for-sale U.S. Treasury securities $ 20,028 $ - $ - $ 20,028 U.S. Agency collateralized mortgage obligations - 100 - 100 U.S. Agency residential mortgage-backed securities - 10 - 10 Municipals - 261 - 261 $ 20,028 $ 371 $ - $ 20,399 The following methods were used to estimate the fair value of the class of financial instruments above: Investment securities - The fair value of securities is based on quoted market prices, pricing models, quoted prices of similar securities, independent pricing sources, and discounted cash flows. Limitations: The fair value estimates presented herein are based on pertinent information available to management as of December 31, 2021 and 2020. The factors used in the fair values estimates are subject to change subsequent to the dates the fair value estimates are completed, therefore, current estimates of fair value may differ significantly from the amounts presented herein. Assets measured at fair value using significant unobservable inputs (Level 3) The following table presents the carrying value of equity securities without readily determinable fair values, as of December 31, 2021 and 2020, with adjustments recorded during the periods presented for those securities with observable price changes. For the Year Ended December 31, (Dollars in thousands) 2021 2020 Carrying value, beginning of period $ 850 $ 500 Addition of equity securities - 750 Downward carrying value changes - (400 ) Upward carrying value changes 1,472 - Carrying value, end of period $ 2,322 $ 850 Assets measured at fair value using significant unobservable inputs (Level 3) The following table provides a description of the valuation technique, unobservable inputs, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a nonrecurring basis at the dates indicated: Valuation Technique Unobservable Inputs December 31, 2021 Weighted Average Rate December 31, 2020 Weighted Average Rate Impaired loans Collateral valuations Discount to appraised value 8% 9% Items measured at fair value on a nonrecurring basis – The following table presents financial assets and liabilities measured at fair value on a nonrecurring basis and the level within the fair value hierarchy of the fair value measurements for those assets at the dates indicated: Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) December 31, 2021 Impaired loans $ - $ - $ 221 $ 221 Equity securities - - 2,322 2,322 Total $ - $ - $ 2,543 $ 2,543 December 31, 2020 Impaired loans $ - $ - $ 712 $ 712 Equity securities - - 850 850 Total $ - $ - $ 1,562 $ 1,562 The amounts disclosed above represent the fair values at the time the nonrecurring fair value measurements were made, and not necessarily the fair value as of the dates reported on. Impaired loans - A loan is considered impaired when it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement. Impairment is measured based on the fair value of the underlying collateral or the discounted cash expected future cash flows. The need for valuation adjustments arises when observable market prices or current appraised values of collateral indicate a shortfall in collateral value compared to current carrying values of the related loan. If the Company determines that the value of the impaired loan is less than the carrying value of the loan, the Company either establishes an impairment reserve as a specific component of the allowance for loan losses or charges off the impairment amount. These valuation adjustments are considered nonrecurring fair value adjustments. Equity securities – The Company measures equity securities without readily determinable fair values at cost less impairment (if any), plus or minus observable price changes from an identical or similar investment of the same issuer, with price changes recognized in earnings.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	12 Months Ended
	Dec. 31, 2021
Revenue From Contract With Customer [Abstract]
Revenue from Contracts with Customers	Note 19 – Revenue from Contracts with Customers All of the Company’s revenue from contracts with customers in the scope of Topic 606 is recognized within noninterest income. The following table presents the Company’s noninterest income by revenue stream for the years ended December 31: 2021 2020 (dollars in thousands) Deposit service charges and fees Interchange income $ 1,959 $ 1,501 Merchant service fees 568 478 Overdraft fees 316 334 Other 855 778 BaaS fees (1) 17,307 2,365 Loan referral fees 2,126 1,726 Gain (loss) on equity investment (2) 1,469 (400 ) Gain on sale of branch (2) 1,263 - Mortgage broker fees 920 655 Gain on sale of loans, net (2) 396 82 Loan servicing fees (2) 248 140 Earnings on life insurance (2) 172 200 Lease and sublease income (2) 126 122 Gain on sale of securities, net (2) - - Other income (3) 393 201 Total noninterest income $ 28,118 $ 8,182 (1) Components of BaaS fees are not within the scope of Topic 606 - see description below. (2) Not within the scope of Topic 606. (3) Includes the following immaterial income streams that are within the scope of Topic 606: wire transfer fees, annuity fees, and brokerage fees. A description of the Company’s revenue streams accounted for under Topic 606 is as follows: Service Charges on Deposit Accounts: Interchange Income: Merchant Service Fees: BaaS Fees: The following tables presents the BaaS fees that are within and not within the scope of Topic 606: Year Ended December 31, Increase (Dollars in thousands) 2021 2020 (Decrease) Program income - within the scope of Topic 606 Servicing and other BaaS fees $ 5,011 $ 1,758 $ 3,253 Interchange 701 14 687 Total program income 5,712 1,772 3,940 Reimbursements - within the scope of Topic 606: Reimbursement of expenses 1,004 593 411 Guarantees - not within the scope of Topic 606: Credit enhancement recovery 9,086 - 9,086 Fraud recovery 1,505 - 1,505 Total reimbursements and guarantees 11,595 593 11,002 Total BaaS fees $ 17,307 $ 2,365 $ 14,942 Loan Referral Fees: Mortgage Broker Fees:

Earnings Per Common Share

Earnings Per Common Share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Common Share	Note 20 - Earnings Per Common Share The following is a computation of basic and diluted earnings per common share at the periods indicated: Year ended December 31, 2021 December 31, 2020 (dollars in thousands, except share data) Net Income $ 27,005 $ 15,146 Basic weighted average number common shares outstanding 12,022,954 11,920,735 Dilutive effect of share-based compensation 498,472 288,636 Diluted weighted average number common shares outstanding 12,521,426 12,209,371 Basic earnings per share $ 2.25 $ 1.27 Diluted earnings per share $ 2.16 $ 1.24 Antidilutive stock options and restricted stock outstanding 176,097 226,878 Under the two-class method, earnings available to common shareholders for the period are allocated between common shareholders and participating securities according to dividends declared (or accumulated) and participation rights in undistributed earnings, however the difference in the two-class method was not significant.

Segment Reporting

Segment Reporting	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Segment Reporting	Note 21 – Segment Reporting As defined in ASC 280, Segment Reporting , an operating segment is a component of an enterprise that engages in business activities from which it may earn revenues and incur expenses, whose operating results are regularly reviewed by the enterprise’s chief operating decision makers to make decisions about resources to be allocated to the segment and assess its performance, and for which discrete financial information is available. We evaluate performance based on an internal performance measurement accounting system, which provides line of business results. This system uses various techniques to assign balance sheet and income statement amounts to the business segments, including allocations of income and expense. A primary objective of this measurement system and related internal financial reporting practices are to produce consistent results that reflect the underlying financial impact of the segments on the Company and to provide a basis of support for strategic decision making. The accounting policies applicable to our segments are those that apply to our preparation of the accompanying Consolidated Financial Statements. Based on these criteria, we have identified two segments: The c ommunity bank and CCBX. Income and expenses that are specific to CCBX are recorded to the CCBX segment. Additionally, certain indirect expenses are allocated to CCBX utilizing various metrics, such as number of employees, utilization of space, and allocations based on loan and deposit balances. Summarized financial information concerning the Company's reportable segments and the reconciliation to the consolidated financial results is shown in the following tables for the periods indicated: December 31, 2021 December 31, 2020 Community Bank CCBX Total Community Bank CCBX Total (dollars in thousands) Total assets $ 2,282,514 $ 353,003 $ 2,635,517 $ 1,700,121 $ 66,001 $ 1,766,122 Total loans receivable $ 1,396,060 $ 346,675 $ 1,742,735 $ 1,481,475 $ 65,663 $ 1,547,138 Allowance for loan losses $ (20,299 ) $ (8,333 ) $ (28,632 ) $ (19,196 ) $ (66 ) $ (19,262 ) Total deposits $ 1,647,529 $ 716,258 $ 2,363,787 $ 1,352,620 $ 68,687 $ 1,421,307 Year Ended December 31, 2021 December 31, 2020 Community Bank CCBX Total Community Bank CCBX Total (dollars in thousands) Net interest income $ 73,004 $ 6,433 $ 79,437 $ 56,833 $ 553 $ 57,386 Provision for loan losses $ 1,275 $ 8,640 $ 9,915 $ 8,242 $ 66 $ 8,308 Noninterest income (1) $ 10,713 $ 17,405 $ 28,118 $ 5,817 $ 2,365 $ 8,182 Noninterest expense $ 51,547 $ 11,716 $ 63,263 $ 34,563 $ 3,556 $ 38,119 (1) For the year ended December 31, 2021, CCBX noninterest income includes credit enhancement recovery of $9.1 million, servicing and other BaaS fees of $5.0 million, fraud recovery of $1.5 million, reimbursement of expenses of $1.0 million, interchange income of $700,000, and other of $98,000. For the year ended December 31, 2020, CCBX noninterest income includes servicing and other BaaS fees of $1.8 million, reimbursement of expenses of $593,000 and interchange income of $14,000.

Parent Company Only Condensed F

Parent Company Only Condensed Financial Information	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Parent Company Only Condensed Financial Information	Note 22 – Parent Company Only Condensed Financial Information Condensed financial information of Coastal Financial Corporation follows: December 31, December 31, 2021 2020 ASSETS Cash $ 24,306 $ 5,071 Investment in trust equities 109 109 Investment in subsidiaries 202,258 147,749 Other investments 2,482 850 Total loans receivable 350 - Other assets 124 122 TOTAL ASSETS $ 229,629 $ 153,901 LIABILITIES AND SHAREHOLDERS' EQUITY Junior subordinated debentures, net of issuances costs $ 3,586 $ 3,584 Subordinated debt, net of debt issuance costs 24,288 9,993 Interest and dividends payable 290 100 Other liabilities 243 7 Shareholders' equity 201,222 140,217 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY $ 229,629 $ 153,901 Year ended December 31, 2021 2020 INCOME Interest earned loans receivable $ 14 $ - Interest bearing other investments 3 3 Unrealized gain (loss) on equity investment 1,469 (400 ) Total income 1,486 (397 ) EXPENSE Interest expense 795 694 Other expenses 576 350 Total expense 1,371 1,044 Loss before income taxes and undistributed net income of subsidiary 115 (1,441 ) Equity in undistributed income of consolidated subsidiaries 26,917 16,299 Income tax expense (benefit) 27 (288 ) NET INCOME $ 27,005 $ 15,146 Year ended December 31, 2021 2020 CASH FLOWS FROM OPERATING ACTIVITIES: Net income $ 27,005 $ 15,146 Adjustments to reconcile net income to net cash used by operating activities: Equity in undistributed income of consolidated subsidiaries (26,917 ) (16,299 ) Stock-based compensation 162 68 Impairment on equity investment (1,469 ) 400 Decrease (increase) in other assets 5 (70 ) Increase in other liabilities 452 13 Net cash used by operating activities (762 ) (742 ) CASH FLOWS FROM INVESTING ACTIVITIES: Investments in subsidiaries (26,500 ) (7,500 ) Investments in loans receivable (350 ) - Investments in other, net (163 ) (750 ) Net cash used by investing activities (27,013 ) (8,250 ) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from exercise of stock options 360 202 Proceeds from public offering, net 32,387 - Proceeds from subordinated debt 24,263 - Repayment of subordinated debt (10,000 ) - Net cash provided by financing activities 47,010 202 NET CHANGE IN CASH 19,235 (8,790 ) Cash, beginning of year 5,071 13,861 Cash, end of year $ 24,306 $ 5,071

Description of Business and S_2

Description of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Nature of Operations	Nature of operations - Coastal Financial Corporation (“Corporation” or “Company”) is a registered bank holding company whose wholly owned subsidiaries are Coastal Community Bank (“Bank”) and Arlington Olympic LLC. The Company is a Washington state corporation that was organized in 2003. The Bank was incorporated and commenced operations in 1997 and is a Washington state-chartered commercial bank and Federal Reserve System (“Federal Reserve”) state member bank. Arlington Olympic LLC was formed in 2019 and owns the Arlington branch, which the Bank leases from the LLC. The Company operates through the Bank and is headquartered in Everett, Washington, which by population is the largest city in, and the county seat of, Snohomish County. The Company’s business is conducted through two reportable segments: The community bank and CCBX. The community bank offers a full range of banking services to small and medium-sized businesses, professionals, and individuals throughout the greater Puget Sound area through its 14 branches in Snohomish, Island and King Counties, the Internet, and its mobile banking application. The Company also has a CCBX segment which provides Banking as a Service (“BaaS”) enabling broker dealers and digital financial service providers to offer their clients banking services. Through CCBX’s partners the Company is able to offer banking services and products across the nation. The Bank’s deposits are insured in whole or in part by the Federal Deposit Insurance Corporation (“FDIC”). The community bank’s loans and deposits are primarily within the greater Puget Sound area, while CCBX loans and deposits are dependent upon the partner’s market. The Bank’s primary funding source is deposits from customers. The Bank is subject to regulation and supervision by the Board of Governors of the Federal Reserve System and the Washington State Department of Financial Institutions Division of Banks. The Federal Reserve also has regulatory and supervisory authority over the Company.
Financial Statement Preparation	Financial statement presentation - The accompanying audited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for reporting requirements and practices within the banking industry. Amounts presented in the consolidated financial statements and footnote tables are rounded and presented in thousands of dollars except per-share amounts, which are presented in dollars. In the narrative footnote discussion, amounts are rounded to thousands and presented in dollars. In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying consolidated financial statements have been made. These adjustments include normal and recurring accruals considered necessary for a fair and accurate presentation.
Principles of Consolidation	Principles of consolidation - The consolidated financial statements include the accounts of the Company, the Bank and the LLC. All significant intercompany accounts have been eliminated in consolidation.
Estimates	Estimates - The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Management believes that its critical accounting estimates include determining the allowance for loan losses, the fair value of the Company’s financial instruments, and the valuation of deferred tax assets, financial instruments, and other fair value measurements. Actual results could differ significantly from those estimates.
Subsequent Events	Subsequent Events - The Company has evaluated events and transactions subsequent to December 31, 2021 for potential recognition or disclosure.
Cash Equivalents and Cash Flows	Cash equivalents - For the purpose of presentation in the statements of cash flows, the Company considers all amounts included in the balance sheet under “cash and due from banks”, all of which have original maturity dates of three months or less, and restricted cash, as cash equivalents. Interest-bearing deposits at other financial institutions (excluding restricted cash), federal funds sold, and cash flows from loans and deposits are reported as net increases or decreases under cash flows from investing activities or from financing activities. The Company maintains
Investment Securities	Investment - Debt securities that management has the ability and intent to hold to maturity are classified as held-to-maturity and carried at amortized cost. The amortization of premiums and accretion of discounts are recognized in interest income using the interest method or methods approximating the interest method over the period to maturity. Debt securities Declines
Other Investments	Other - Other investments on the balance sheet consists of direct equity investments in stock of the Federal Home Loan Bank of Des Moines (“FHLB”), the Federal Reserve Bank of San Francisco (“FRB”), Pacific Coast Banker’s Bancshares, Neocova Corporation, and Synctera Incorporated, additionally, other investments include investments in two equity funds. As a Federal on the Bank’s 2.8 million The Bank, as a member The investment The Company has the following equity investments which do not have a readily determinable fair value and are held at cost minus impairment if any, plus or minus observable price changes in orderly transactions for an identical or similar investment of the same issuer. This method will be applied until the investments do not qualify for the measurement election (e.g., if the investment has a readily determinable fair value). The Company will reassess at each reporting period whether the equity investments without a readily determinable fair value qualifies to be measured at cost minus impairment. As of December 31, 2021 and December 31, 2020 the Company has $2.2 million and $750,000, respectively, equity interest in a specialized bank technology company which consists of 1.6 million shares of common stock and 873,853 preferred shares. During the year ended December 31, 2021, the Company reassessed the value and recognized a $1.5 million unrealized holding gain as a result of an observable price change. The Company holds a $100,000 equity interest in a technology company at December 31, 2021, which consists of 9,000 shares of stock and is carried at cost less impairment, which approximates its fair value. During the year ended December 31, 2020 the Company re-evaluated the value and recorded an impairment of $400,000 on this equity investment. Additionally, the Company committed up to a $500,000 equity investment in a company during the year ended December 31, 2021. No contribution has been made as of December 31, 2021. During the year ended December 31, 2021, the Company entered into agreements with two investment funds designed to help accelerate technology adoption at banks. These equity investments are held at fair value. During the year ended December 31, 2021, the Company committed up to $1.1 million in capital for these equity funds, however, the Company is not obligated to fund these commitments prior to a capital call. During the year the Company contributed $163,000 in with recognized losses of $3,000 during the year resulting in an equity interest of $160,000 for the year ended December 31, 2021.
Loans and Allowance for Loan Losses	Loans and allowance – Loans are stated at the principal amount outstanding less the allowance for loan losses and net of any deferred fees or costs on originated loans, and unamortized premiums or discounts on purchased loans. Loan fees and certain direct loan origination costs are deferred, and the net fee or cost is recognized as an adjustment to interest income using the level yield methodology and a method that approximates the level yield methodology. Interest income on loans is recognized based upon the principal amounts outstanding. Generally, the accrual of interest is discontinued when, in management’s opinion, the borrower may be unable to meet payments as they become due or when they are 90 days past due as to either principal or interest, unless they are well secured and in the process of collection. When interest accrual is discontinued, all unpaid accrued interest is reversed against current income. If management determines that the ultimate collectability of principal or interest is in doubt, cash receipts on nonaccrual loans are applied to reduce the principal balance on a cash-basis method, until the loans qualify for return to accrual status or principal is paid in full. Loans are returned to accrual status when all principal and interest amounts contractually due are brought current, borrower has demonstrated ability to make regular payments, generally a period of at least six months, and future payments are reasonably assured. The allowance for loan losses is comprised of amounts charged against income in the form of the provision for loan losses, less charged-off loans, net of recoveries. When available information confirms that specific loans or portions thereof are uncollectible, identified amounts are charged against the allowance for loan losses. The existence of some or all of the following criteria will generally confirm that a loss has been incurred: (1) the loan is significantly delinquent and the borrower has not demonstrated the ability or intent to bring the loan current; (2) the Company has no recourse to the borrower or if it does, the borrower has insufficient assets to pay the debt; (3) the estimated fair value of the loan collateral is significantly below the current loan balance; and (4) there is little or no near-term prospect for improvement. Subsequent recoveries, if any, are credited to the allowance for loan losses. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance consists of specific and general components. The specific component relates to loans that are determined to be impaired. For such loans (including troubled debt restructurings), an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers various loans and is based on the probability of default and loss given default, type of loan, peer information, risk rating and adjusted for qualitative and quantitative trends in the portfolio, including the internal risk classification of loans, historical loss rates, changes in the nature and volume of the loan portfolio, industry or borrower concentrations, delinquency trends, detailed reviews of significant loans with identified weaknesses and the impacts of local, regional and national economic factors on the quality of the loan portfolio. Community bank and CCBX loans are assessed at either the individual loan level or pooled, depending on loan type and characteristics of the loan. Consumer loans and smaller balance loans are typically assessed as homogeneous loan pools. Based on management’s analysis, the Company records a provision for loan losses to maintain the allowance at appropriate levels. CCBX lending partners originate various loan types, and as of December 31, 2021, include consumer, commercial and home equity loans. CCBX consumer loans have a higher level of expected losses than community bank loans which is reflected in the higher loss factors for the allowance for loan losses. Estimated loss rates for CCBX loans vary by partner, and might be based on actual partner experience, realized losses or losses for comparable products, industry averages, or the Company’s loss rate for similar loans. Many of the agreements with our CCBX partners provide for a credit enhancement which helps protect the Bank by absorbing incurred losses. CCBX credit enhancements are free-standing and is accounted separately from the allowance for loan loss. In accordance with accounting guidance, we estimate and record a provision for probable losses for these CCBX loans, without regard to the credit enhancement. When the provision for loan losses is recorded, a free-standing credit enhancement receivable is recorded on the balance sheet through noninterest income (BaaS fees -credit enhancement). Charge-offs of CCBX partner loans are recorded against the allowance for loan losses. When collected from the credit enhancement cash reserve account or the CCBX partner, the credit enhancement receivable is relieved. If a CCBX lending partner is unable to fulfill their contractual obligations under the credit enhancement, then the Bank would be exposed to additional loan losses as a result of this counterparty risk and would have to absorb any loan losses associated with the CCBX partner that cannot fulfill its contractual obligations. Management believes the balance would be recoverable in the event of bankruptcy of the partner, but there are no guarantees that bankruptcy court will rule in the Company’s favor. Credit-worthiness of CCBX partners are evaluated as part of initial due diligence and quarterly thereafter. A community bank loan loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral-dependent. CCBX consumer loans and home equity loans are treated as homogenous pool s and are not subject to individual impairment analysis. A troubled
Loans Held-for-Sale	Loans held-for-sale - Loans held-for-sale consist of the guaranteed portion of SBA loans and United States Department of Agriculture (USDA) loans the Company intends to sell after origination and are reflected at the lower of aggregate cost or fair value. Loans are generally sold with servicing of the sold portion retained by the Company when the sale of the loan occurs, the premium received is combined with the estimated present value of future cash flows on the related servicing asset and recorded as a gain on sale of loans in noninterest income. There were no loans held for sale at December 31, 2021 and 2020.
Loan Sales Recognition	Loan - The Company recognizes a sale on loans if the transferred portion (or portions) and any portion that continues to be held by the transferor are participating interests. Participating interest is defined as a portion of a financial asset that (a) conveys proportionate ownership rights with equal priority to each participating interest holder, (b) involves no recourse (other than standard representations and warranties), and (c) does not entitle any participating interest holder to receive cash before any other participating interest holder. The transfer of the participating interest (or participating interests) must also meet the conditions for surrender of control. To determine The Company retains
SBA and USDA Servicing Assets	SBA and USDA - The Company accounts for SBA and USDA servicing rights as separately recognized servicing rights and initially measures them at fair value. Fair value is based on market prices for comparable servicing contracts, when available, or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. The Company subsequently measures each SBA and USDA servicing asset using the amortization method. Under the amortization method, servicing assets are amortized into noninterest income in proportion to, and over the period of, estimated net servicing income. The amortized assets are assessed for impairment or increased obligations, at the loan level, based on the fair value of each reporting date. As of December 31, 2021 and 2020, SBA and USDA servicing assets totaled $269,000 and $298,000, respectively, and are included in other assets on the consolidated balance sheets, and SBA and USDA loans serviced totaled $19.3 million and $20.6 million, as of December 31, 2021 and 2020 respectively.
Reserve for Unfunded Commitments	Reserve - A reserve for unfunded commitments is maintained at a level that, in the opinion of management, is adequate to absorb probable losses associated with the Company’s commitment to lend funds under existing agreements, such as letters or lines of credit. Management determines the adequacy of the reserve for unfunded commitments based on review of individual credit facilities, current economic conditions, and risk characteristics of the various categories of commitments and other relevant factors. The reserve is based on estimates, and ultimate losses may vary from the current estimates. These estimates are evaluated on a regular basis and adjustments are reported in earnings in the periods in which they become known. Draws on unfunded commitments that are considered uncollectible at the time funds are advanced are charged to the allowance for loan losses. Provision for unfunded commitments losses are added to the reserve for unfunded commitments, which is included in the other liabilities section of the consolidated balance sheets. The reserve for unfunded commitments was $ 1.3 million and $ as of December 31, 2021 and 20 20 , respectively , and includes a reserve for community bank loans and CCBX loans . Additionally, agreements with our CCBX partners provide for a credit enhancement against losses. When the provision for unfunded commitments is recorded, a recovery receivable is also recorded on the consolidated balance sheet through noninterest income (BaaS fees -credit enhancement). Incurred losses are recorded in the allowance for loan losses, and as the credit enhancement recoveries are received from the CCBX partner, the recovery receivable is relieved.
Premises and Equipment	Premises - Premises and equipment are stated at cost less accumulated depreciation. Depreciation expense is computed using the straight-line method based upon the estimated useful lives of the assets. Asset lives range from three to thirty-nine years Leasehold improvements are amortized over the expected term of the lease or the estimated useful life of the improvement, whichever is less. Maintenance
Transfers of Financial Assets	Transfers - Transfers of an entire financial asset are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when: (1) a group of financial assets or a participating interest in an entire financial asset has been isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Other Real Estate Owned and Repossessed Assets	Other - Other real estate owned and repossessed assets are foreclosed property held pending disposition and is initially recorded at fair value less estimated selling costs when acquired, establishing a new cost basis. At foreclosure, if the fair value of the asset acquired less estimated selling costs is less than the Company’s recorded investment in the related loan, a write-down is recognized through a charge to the allowance for loan losses. Costs of significant property improvements that increase the value of the property are capitalized, whereas costs relating to holding the property are expensed. Valuations are periodically performed by management, and a valuation allowance is established for subsequent declines, which are recorded as a charge to income, if necessary, to reduce the carrying value of the property to its fair value less estimated selling costs.
Leases	Leases - The Company accounts for its leases in accordance with ASC 842 - Leases . Most leases are recognized on the balance sheet by recording a right-of-use asset and lease liability for each lease. The right-of-use asset represents the right to use the asset under lease for the lease term, and the lease liability represents the contractual obligation to make lease payments. The right-of-use asset is tested for impairment whenever events or changes in circumstances indicate the carrying amount may not be recoverable. As a lessee, the Company enters into operating leases for certain bank branches. The right-of-use assets and lease liabilities are initially recognized based on the net present value of the remaining lease payments which include renewal options where the Company is reasonably certain they will be exercised. The net present value is determined using the incremental collateralized borrowing rate at commencement date. The right-of-use asset is measured at the amount of the lease liability adjusted for any prepaid rent, lease incentives and initial direct costs incurred. The right-of-use asset and lease liability is amortized over the individual lease terms. Lease expense for lease payments is recognized on a straight-line basis over the lease term. For additional information regarding leases, see Note 6.
Federal Income Taxes	Federal - The Company and the Bank file a consolidated federal income tax return. Deferred federal income taxes result from temporary differences between the tax basis of assets and liabilities, and their reported amounts in the financial statements. Deferred taxes are temporary differences that will be recognized in future periods. As changes in tax law or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes. Taxes are paid by the Bank to the Company based on the separate taxable income of the Bank. The Company and Bank maintain their records on the accrual basis of accounting for financial reporting and for income tax reporting purposes. With few exceptions, the Company is no longer subject to income tax examination for years before 2018. As of December 31, 2021 and 2020, the
Stock-Based Compensation	Stock-based - Compensation expense is recognized for stock options and restricted stock, based on the fair value of these awards at the grant date. A Black-Scholes model is utilized to estimate the fair value of stock options, while the market price of the Company’s common stock at the grant date is used for restricted stock awards and restricted stock units and is determined on the basis of objective criteria including trade data. Compensation cost is recognized over the requisite service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award.
Earnings Per Common Share	Earnings per common - Earnings per common share (“EPS”) is computed under the two-class method. Pursuant to the two-class method, nonvested stock based payment awards that contain nonforfeitable rights to dividends or dividend equivalents are participating securities and are included in the computation of EPS. The two-class method is an earnings allocation formula that determines earnings per share for each class of common stock and participating security according to dividends declared (or accumulated) and participation rights in undistributed earnings. Application of the two-class method resulted in the equivalent earnings per share to the treasury method. Basic that
Comprehensive Income	Comprehensive - Accounting principles generally require that recognized revenue, expenses, gains, and losses be included in net income. Certain changes in assets and liabilities, such as unrealized gains and losses on available-for-sale investments, are reported as a separate component of the shareholders’ equity section of the balance sheets. Accumulated other comprehensive income consists of only one component: unrealized gains or losses on investment securities available-for-sale.
Business Segments	Business Segments For financial reporting purposes, the Company has two segments: The community bank and CCBX. The community bank business is that of a traditional banking institution, gathering deposits and originating loans for portfolio in its market areas. The community bank offers a wide variety of deposit products to their customers. Lending activities include the origination of real estate, commercial and industrial, and consumer loans. Interest income on loans is the Company’s primary source of revenue, and is supplemented by interest income from investment securities, deposit service charges, and other service provided activities. In addition to traditional banking services the Company also has a CCBX segment which provides BaaS offerings that enable broker dealers and digital financial service providers to offer their clients banking services. The performance of the Company is reviewed and monitored by the Company’s executive management on a daily basis and the Board of Directors reviews and monitors the performance of the Company at minimum, on a monthly basis. For additional information regarding the business segments, see Note 21.
Advertising Costs	Advertising - Advertising costs are expensed as incurred or over the period of the campaign/promotion. Advertising costs in the amount of $451,000 and $317,000 were expensed during the year ended December 31, 2021 and 2020, respectively
Reclassifications	Reclassifications - Certain amounts reported in prior years' consolidated financial statements have been reclassified to conform to the current presentation with no effect on shareholders’ equity or net income.
Accounting Standards Adopted in 2020	Accounting Standards Adopted in 2020 On January 1, 2020, the Company adopted ASU No. 2019-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting
Recent Accounting Guidance Not Yet Effective	Recent Accounting Guidance Not Yet Effective In September 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The amendment is effective for annual periods beginning after December 15, 2020 and interim period within those annual periods. As a smaller reporting company our implementation will be effective January 1, 2023. The Company is actively assessing the data and the model needs and are evaluating the impact of adopting the amendment. The Company expects to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective, but cannot yet determine the magnitude of any such one-time adjustment or the overall impact of the new guidance on the consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2021
Investments Debt And Equity Securities [Abstract]
Amortized Cost and Fair Values of Investment Securities	The amortized cost and fair values of investment securities at the date indicated are as follows: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (dollars in thousands) December 31, 2021 Available-for-sale U.S. Treasury securities $ 34,999 $ - $ (1 ) $ 34,998 U.S. Agency collateralized mortgage obligations 68 2 - 70 U.S. Agency residential mortgage-backed securities 3 - - 3 Municipals 252 4 - 256 Total available-for-sale securities 35,322 6 (1 ) 35,327 Held-to-maturity U.S. Agency residential mortgage-backed securities 1,296 52 - 1,348 Total investment securities $ 36,618 $ 58 $ (1 ) $ 36,675 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (dollars in thousands) December 31, 2020 Available-for-sale U.S. Treasury securities $ 19,997 $ 31 $ - $ 20,028 U.S. Agency collateralized mortgage obligations 96 4 - 100 U.S. Agency residential mortgage-backed securities 10 - - 10 Municipals 254 7 - 261 Total available-for-sale securities 20,357 42 - 20,399 Held-to-maturity U.S. Agency residential mortgage-backed securities 2,848 109 - 2,957 Total investment securities $ 23,205 $ 151 $ - $ 23,356
Amortized Cost and Fair Value of Debt Securities by Contractual Maturity	Mortgage-backed securities and collateralized mortgage obligations are shown separately, since they are not due at a single maturity date. Available-for-Sale Held-to-Maturity Amortized Cost Fair Value Amortized Cost Fair Value (dollars in thousands) Amounts maturing in One year or less $ 34,999 $ 34,998 $ - $ - After one year through five years 252 256 - - 35,251 35,254 - - U.S. Agency residential mortgage-backed securities and collateralized mortgage obligations 71 73 1,296 1,348 $ 35,322 $ 35,327 $ 1,296 $ 1,348
Summary of Investment Securities Continuous Unrealized Loss Position	Information pertaining to securities with gross unrealized losses at the dates indicated, aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows: Less Than 12 Months 12 Months or Greater Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses (dollars in thousands) December 31, 2021 Available-for-sale U.S. Treasury securities $ 34,998 $ (1 ) $ - $ - $ 34,998 $ (1 ) Total investment securities $ 34,998 $ (1 ) $ - $ - $ 34,998 $ (1 )

Loans and Allowance for Loan _2

Loans and Allowance for Loan Losses (“ALLL”) (Tables)	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Composition of Loan Portfolio	The composition of the loan portfolio is as follows as of the periods indicated: December 31, December 31, 2021 2020 (dollars in thousands) Commercial and industrial loans $ 419,060 $ 539,200 Real estate loans: Construction, land, and land development loans 183,594 94,423 Residential real estate loans 204,389 143,869 Commercial real estate loans 835,587 774,925 Consumer and other loans 108,871 3,916 Gross loans receivable 1,751,501 1,556,333 Net deferred origination fees and premiums (8,766 ) (9,195 ) Loans receivable $ 1,742,735 $ 1,547,138
Summary of an Age Analysis of Past Due Loans	The following table illustrates an age analysis of past due loans as of the dates indicated: 30-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total Loans Recorded Investment 90 Days or More Past Due and Still Accruing (dollars in thousands) December 31, 2021 Commercial and industrial loans $ 259 $ 38 $ 297 $ 418,763 $ 419,060 $ - Real estate loans: Construction, land and land development loans - - - 183,594 183,594 - Residential real estate loans 809 94 903 203,486 204,389 39 Commercial real estate loans - - - 835,587 835,587 - Consumer and other loans 3,901 1,467 5,368 103,503 108,871 1,467 $ 4,969 $ 1,599 $ 6,568 $ 1,744,933 $ 1,751,501 $ 1,506 Less net deferred origination fees and premiums (8,766 ) Loans receivable $ 1,742,735 30-89 Days Past Due 90 Days or More Past Due Total Past Due Current Total Loans Recorded Investment 90 Days or More Past Due and Still Accruing (dollars in thousands) December 31, 2020 Commercial and industrial loans $ 133 $ 537 $ 670 $ 538,530 $ 539,200 $ - Real estate loans: Construction, land and land development loans 1 - 1 94,422 94,423 - Residential real estate loans 1,108 60 1,168 142,701 143,869 - Commercial real estate loans - - - 774,925 774,925 - Consumer and other loans - - - 3,916 3,916 - $ 1,242 $ 597 $ 1,839 $ 1,554,494 $ 1,556,333 $ - Less net deferred origination fees and premiums (9,195 ) Loans receivable $ 1,547,138
Summary of Information Pertaining to Impaired Loans	CCBX loans are reported using pool accounting and are not subject to impairment analysis. The following table is a summary of information pertaining to impaired loans as of the period indicated: Unpaid Contractual Principal Balance Recorded Investment With No Allowance Recorded Investment With Allowance Total Recorded Investment Related Allowance (dollars in thousands) December 31, 2021 Commercial and industrial loans $ 173 $ - $ 166 $ 166 $ 132 Real estate loans: Residential real estate loans 69 55 - 55 - Total $ 242 $ 55 $ 166 $ 221 $ 132 December 31, 2020 Commercial and industrial loans $ 834 $ 537 $ - $ 537 $ - Real estate loans: Residential real estate loans 188 175 - 175 - Total $ 1,022 $ 712 $ - $ 712 $ -
Summary of Average Recorded Investment and Interest Income Recognized on Impaired Loans	The following tables summarize the average recorded investment and interest income recognized on impaired loans by loan class for the year ended December 31, 2021 and 2020: December 31, 2021 December 31, 2020 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized (dollars in thousands) Commercial and industrial loans $ 498 $ - $ 719 $ - Real estate loans: Construction, land and land development - - 1,110 - Residential real estate 143 - 165 - Commercial real estate - - 136 - Consumer loans - - - - Total $ 641 $ - $ 2,130 $ -
Analysis of Nonaccrual Loans by Category	An analysis of nonaccrual loans by category consisted of the following at the periods indicated: December 31, December 31, 2021 2020 (dollars in thousands) Commercial and industrial loans $ 166 $ 537 Real estate loans: Residential real estate loans 55 175 Total nonaccrual loans $ 221 $ 712
Summary of Loans by Credit Quality Risk Rating	Loans by credit quality risk rating are as follows as of the periods indicated: Pass Other Loans Especially Mentioned Sub- Standard Doubtful Total (dollars in thousands) December 31, 2021 Commercial and industrial loans $ 416,642 $ 2,180 $ 238 $ - $ 419,060 Real estate loans: Construction, land, and land development loans 183,594 - - - 183,594 Residential real estate loans 204,173 122 94 - 204,389 Commercial real estate loans 824,676 10,911 - - 835,587 Consumer and other loans 107,404 - 1,467 - 108,871 $ 1,736,489 $ 13,213 $ 1,799 $ - 1,751,501 Less net deferred origination fees (8,766 ) Loans receivable $ 1,742,735 December 31, 2020 Commercial and industrial loans $ 538,149 $ 397 $ 654 $ - $ 539,200 Real estate loans: Construction, land, and land development loans 94,423 - - - 94,423 Residential real estate loans 143,540 154 175 - 143,869 Commercial real estate loans 763,647 11,278 - - 774,925 Consumer and other loans 3,916 - - - 3,916 $ 1,543,675 $ 11,829 $ 829 $ - 1,556,333 Less net deferred origination fees (9,195 ) Loans receivable $ 1,547,138
Summary of Allocation of Allowance for Loan Loss as well as Activity in Allowance for Loan Loss Attributed to Various Segments in Loan	The following tables summarize the allocation of the allowance for loan loss, as well as the activity in the allowance for loan loss attributed to various segments in the loan portfolio, as of and for the year ended December 31, 2021. Commercial and Industrial Construction, Land, and Land Development Residential Real Estate Commercial Real Estate Consumer and Other Unallocated Total (dollars in thousands) ALLL balance, December 31, 2020 $ 3,353 $ 3,545 $ 3,410 $ 7,810 $ 127 $ 1,017 $ 19,262 Provision for loan losses or (recapture) 23 3,439 1,267 (1,220 ) 7,276 (870 ) 9,915 3,376 6,984 4,677 6,590 7,403 147 29,177 Loans charged-off (222 ) - (79 ) - (339 ) - (640 ) Recoveries of loans previously charged-off 67 - - - 28 - 95 Net (charge-offs) recoveries (155 ) - (79 ) - (311 ) - (545 ) ALLL balance, December 31, 2021 $ 3,221 $ 6,984 $ 4,598 $ 6,590 $ 7,092 $ 147 $ 28,632 ALLL amounts allocated to Individually evaluated for impairment $ 132 $ - $ - $ - $ - $ - $ 132 Collectively evaluated for impairment 3,089 6,984 4,598 6,590 7,092 147 28,500 ALLL balance, December 31, 2021 $ 3,221 $ 6,984 $ 4,598 $ 6,590 $ 7,092 $ 147 $ 28,632 Loans individually evaluated for impairment $ 166 $ - $ 55 $ - $ - $ 221 Loans collectively evaluated for impairment 418,894 183,594 204,334 835,587 108,871 1,751,280 Loan balance, December 31, 2021 $ 419,060 $ 183,594 $ 204,389 $ 835,587 $ 108,871 $ 1,751,501 The following tables summarize the allocation of the allowance for loan loss, as well as the activity in the allowance for loan loss attributed to various segments in the loan portfolio, as of and for the year ended December 31, 2020: Commercial and Industrial Construction, Land, and Land Development Residential Real Estate Commercial Real Estate Consumer and Other Unallocated Total (dollars in thousands) ALLL balance, December 31, 2019 $ 2,366 $ 2,745 $ 2,069 $ 3,126 $ 104 $ 1,060 $ 11,470 Provision for loan losses or (recapture) 1,123 1,169 1,341 4,684 34 (43 ) 8,308 3,489 3,914 3,410 7,810 138 1,017 19,778 Loans charged-off (141 ) (369 ) - - (15 ) - (525 ) Recoveries of loans previously charged-off 5 - - - 4 - 9 Net (charge-offs) recoveries (136 ) (369 ) - - (11 ) - (516 ) ALLL balance, December 31, 2020 $ 3,353 $ 3,545 $ 3,410 $ 7,810 $ 127 $ 1,017 $ 19,262 ALLL amounts allocated to Individually evaluated for impairment $ - $ - $ - $ - $ - $ - $ - Collectively evaluated for impairment 3,353 3,545 3,410 7,810 127 1,017 19,262 ALLL balance, December 31, 2020 $ 3,353 $ 3,545 $ 3,410 $ 7,810 $ 127 $ 1,017 $ 19,262 Loans individually evaluated for impairment $ 537 $ - $ 175 $ - $ - $ 712 Loans collectively evaluated for impairment 538,663 94,423 143,694 774,925 3,916 1,555,621 Loan balance, December 31, 2020 $ 539,200 $ 94,423 $ 143,869 $ 774,925 $ 3,916 $ 1,556,333

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property Plant And Equipment [Abstract]
Schedule of Investment in Premises and Equipment	The investment in premises and equipment consisted of the following at December 31: 2021 2020 (dollars in thousands) Land $ 2,672 $ 3,051 Buildings 10,086 10,533 Leasehold Improvements 4,117 3,952 Furniture 2,473 2,273 Equipment 5,234 4,788 Software 934 703 Projects in process 1,375 169 . 26,891 25,469 Less accumulated depreciation and amortization (9,672 ) (8,361 ) Premises and equipment, net $ 17,219 $ 17,108

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Summary of Minimum Annual Lease Payments under Lease Terms	The following sets forth, as of December 31, 2021, the minimum annual lease payments under the terms of these leases, inclusive of renewal options that the Company is reasonably certain to renew: December 31, (dollars in thousands) 2021 2022 $ 1,280 2023 1,272 2024 864 2025 713 2026 719 2027 and thereafter 2,490 Total lease payments 7,338 Less: amounts representing interest 1,018 Present value of lease liabilities $ 6,320
Summary of Components of Total Lease Expense and Operating Cash Flows	The following table presents the components of total lease expense and operating cash flows for the year ended December 31, 2021: December 31, (dollars in thousands) 2021 Lease expense: Operating lease expense $ 1,283 Variable lease expense 148 Total lease expense (1) $ 1,431 Cash paid: Cash paid reducing operating lease liabilities $ 1,419 (1) Included in net occupancy expense in the Consolidated Statements of Income.

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2021
Deposits [Abstract]
Composition of Consolidated Deposits	The composition of consolidated deposits consisted of the following at the periods indicated: December 31, December 31, 2021 2020 (dollars in thousands) Demand, noninterest bearing $ 1,355,908 $ 592,261 Now and money market 789,709 658,323 Savings 103,956 77,611 Total core deposits 2,249,573 1,328,195 BaaS brokered deposits 70,757 33,482 Time deposits less than $250,000 31,057 41,145 Time deposits $250,000 and over 12,400 18,485 Total deposits $ 2,363,787 $ 1,421,307
Schedule of Maturity Distribution of Time Deposits	The following table presents the maturity distribution of time deposits as of December 31, 2021 (dollars in thousands): Twelve months $ 33,985 One to two years 4,670 Two to three years 2,723 Three to four years 990 Four to five years 1,089 $ 43,457

Federal Home Loan Bank Advanc_2

Federal Home Loan Bank Advances and Other Borrowings (Tables)	12 Months Ended
	Dec. 31, 2021
Summary of PPPLF Borrowings	The following tables provides details on PPPLF borrowings for the periods indicated: Year Ended December 31, (Dollars in thousands) 2021 2020 Maximum amount outstanding at any month-end during period: PPPLF Advances $ 185,894 $ 202,595 Average outstanding balance during period: PPPLF Advances $ 68,699 $ 124,068 Weighted average interest rate during period: PPPLF Advances 0.35 % 0.35 % Balance outstanding at end of period: PPPLF Advances $ - $ 153,716 Weighted average interest rate at end of period: PPPLF Advances 0.00 % 0.35 %
FHLB Overnight Borrowings
Summary of FHLB Borrowings	The following table provides details on FHLB overnight borrowings for the periods indicated: Year Ended December 31, (Dollars in thousands) 2021 2020 Maximum amount outstanding at any month-end during period: FHLB Advances $ 100 $ 2,260 Average outstanding balance during period: FHLB Advances $ - $ 67 Weighted average interest rate during period: FHLB Advances 0.25 % 1.84 % Balance outstanding at end of period: FHLB Advances $ - $ - Weighted average interest rate at end of period: FHLB Advances 0.00 % 0.00 %
FHLB Long-term Borrowings
Summary of FHLB Borrowings	The following table provides details on FHLB long-term borrowings for the periods indicated: Year Ended December 31, (Dollars in thousands) 2021 2020 Maximum amount outstanding at any month-end during period: FHLB Advances $ 24,999 $ 24,999 Average outstanding balance during period: FHLB Advances $ 24,999 $ 20,669 Weighted average interest rate during period: FHLB Advances 1.13 % 1.13 % Balance outstanding at end of period: FHLB Advances $ 24,999 $ 24,999 Weighted average interest rate at end of period: FHLB Advances 1.13 % 1.13 %

Subordinated Debt (Tables)

Subordinated Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Subordinated Borrowings [Abstract]
Schedule of Subordinated Debt	At December 31, 2021 and 2020, the Company’s subordinated debt was as follows: Aggregate Principal Amount December 31, 2021 Aggregate Principal Amount December 31, 2020 (dollars in thousands) Total liability, at par $ 25,000 $ 10,000 Less: unamortized debt issuance costs (712 ) (7 ) Total liability, at carrying value $ 24,288 $ 9,993 Stated Maturity: September 1, 2031 August 1, 2026 Interest Rate: Fixed 3.375% 5 years; then 3-month SOFR +2.76% starting September 1, 2026 Fixed 5.65% 5 years; then Wall Street Prime +2.5% starting August 1, 2021

Junior Subordinated Debentures

Junior Subordinated Debentures (Tables)	12 Months Ended
	Dec. 31, 2021
Junior Subordinated Debentures
Schedule of Junior Subordinated Debentures	At December 31, 2021 and 2020, the Company’s junior subordinated debentures were as follows: Coastal (WA) Statutory Trust I Aggregate Principal Amount December 31, 2021 Aggregate Principal Amount December 31, 2020 (dollars in thousands) Total liability, at par $ 3,609 $ 3,609 Less: unamortized debt issuance costs (23 ) (25 ) Total liability, at carrying value $ 3,586 $ 3,584 Stated Maturity: December 15, 2034 Interest Rate Spread: Three-month LIBOR +2.10%

Income Taxes (Table)

Income Taxes (Table)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Components of Income Tax	The components of the income tax for the Company consisted of the following at December 31: 2021 2020 (dollars in thousands) Current tax expense $ 10,383 $ 5,069 Deferred tax benefit (3,011 ) (1,074 ) Total tax expense $ 7,372 $ 3,995
Summary of Reconciliation of Income Tax Expense (Benefit)	A reconciliation of the income tax expense (benefit) and the amount computed by applying the statutory federal income tax rate to the income before income taxes is as follows for the year ended December 31: 2021 2020 (dollars in thousands) Amount Rate Amount Rate Federal income tax at statutory rate $ 7,219 21.0 % $ 4,020 21.0 % State income taxes 256 0.7 $ - 0.0 % Effect of tax-exempt interest income (100 ) (0.3 ) (110 ) (0.6 ) Stock-based compensation (43 ) (0.1 ) 51 0.3 Bank owned life insurance earnings (36 ) (0.1 ) (42 ) (0.2 ) Excess executive compensation 58 0.2 - - Other 18 0.1 76 - $ 7,372 21.4 % $ 3,995 20.5 %
Schedule of Net Deferred Tax Asset Temporary Differences and Carryforward Items	The net deferred tax asset consists of the following temporary differences and carryforward items at December 31: 2021 2020 (dollars in thousands) Deferred tax assets: Allowance for loan losses $ 6,223 $ 4,045 Lease liability 1,374 1,538 Accrued expenses 596 507 Deferred compensation 162 181 Allowance for unfunded commitments 277 131 Nonqualified stock options 107 104 Interest on nonaccrual loans 10 41 Equity investment write-down - 84 Restricted stock options 196 33 Deferred income 58 15 Other 37 - Total deferred tax assets 9,040 6,679 Deferred tax liabilities: Right of use asset (1,327 ) (1,495 ) Depreciation and amortization (661 ) (1,376 ) Net unrealized gain on equity security (233 ) - Net unrealized gain on available-for-sale securities (1 ) (9 ) Total deferred tax liabilities (2,222 ) (2,880 ) Net deferred tax asset $ 6,818 $ 3,799

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Summary of Loan Transactions	A summary of loan transactions follows: 2021 2020 (dollars in thousands) Beginning Balance January 1 $ 8,342 $ 10,315 Additions 1,018 1,369 Payments (1,384 ) (566 ) No longer related parties - (2,776 ) Ending Balance December 31 $ 7,976 $ 8,342

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2021
Schedule of Financial Instruments Contract Amount Represents Credit Risk	Financial instruments whose contract amount represents credit risk were as follows at December 31: 2021 2020 (dollars in thousands) Commitments to extend credit: Commercial and industrial loans $ 486,804 $ 189,884 Construction - commercial real estate loans 90,946 69,866 Construction - residential real estate loans 43,339 18,489 Commercial real estate loans 23,248 20,482 Residential real estate loans 101,715 18,128 Other 163,510 1,101 Total commitments to extend credit $ 909,562 $ 317,950 Standby letters of credit $ 3,040 $ 2,754 Equity investment commitments $ 1,090 $ -
CCBX Loans
Schedule of Financial Instruments Contract Amount Represents Credit Risk	Commitments to extend credit on CCBX loans are included in the table above and are summarized below: 2021 2020 (dollars in thousands) Commitments to extend credit: Commercial and industrial loans $ 415,956 $ 128,208 Residential real estate loans 71,453 - Other 162,266 - Total commitments to extend credit $ 649,675 $ 128,208

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Stock Option Activity	A summary of stock option activity under the Company’s Plan during the year ended December 31, 2021: Options Shares Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (dollars in thousands, except per share amounts) Outstanding at December 31, 2020 749,397 $ 7.75 5.0 $ 9,993 Granted - - Exercised (50,570 ) 7.11 $ 1,177 Forfeited or expired (1) (4,308 ) 7.63 Outstanding at December 31, 2021 694,519 $ 7.79 4.0 $ 29,744 Vested or expected to vest at December 31, 2021 694,519 $ 7.79 4.0 $ 29,744 Exercisable at December 31, 2021 356,945 $ 6.65 2.9 $ 15,695 (1) Includes 2 share rounding adjustment
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Nonvested Restricted Stock Units/Shares	A summary of the Company’s nonvested restricted stock units at December 31, 2021 and changes during the year is presented below: Nonvested shares Shares Weighted- Average Grant Date Fair Value Total or Aggregate Intrinsic Value was(dollars in thousands, except per share amounts) Nonvested shares at December 31, 2020 90,249 $ 17.25 $ 352 Granted 189,258 23.88 Forfeited (1,312 ) 19.98 Vested (8,351 ) 17.42 Nonvested shares at December 31, 2021 269,844 $ 21.70 $ 7,803
Restricted Stock | Directors Stock Bonus Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Summary of Nonvested Restricted Stock Units/Shares	A summary of the Company’s nonvested shares at December 31, 2021 and changes during the year is presented below: Nonvested shares Shares Weighted- Average Grant Date Fair Value Aggregate Intrinsic Value (dollars in thousands, except per share amounts) Nonvested shares at December 31, 2020 14,377 $ 16.15 $ 70 Granted 10,714 25.22 Forfeited - - Vested (14,888 ) 17.46 Nonvested shares at December 31, 2021 10,203 $ 23.78 $ 274

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Summary of Company and Banks's Actual and Required Capital Amounts and Ratios	The Company and Bank’s actual unts and ratios are as follows: Actual Minimum Required for Capital Adequacy Purposes (1) Required to be Well Capitalized Under the Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio (dollars in thousands) December 31, 2021 Leverage Capital (to average assets) Consolidated $ 204,585 8.07 % $ 101,460 4.00 % $ 126,826 5.00 % Bank Only 201,783 7.96 % 101,350 4.00 % 126,687 5.00 % Common Equity Tier 1 risk-based capital ratio (to risk-weighted assets) Consolidated 201,085 11.06 % 81,834 4.50 % 118,205 6.50 % Bank Only 201,783 11.12 % 81,623 4.50 % 117,900 6.50 % Tier 1 Capital (to risk-weighted assets) Consolidated 204,585 11.25 % 109,112 6.00 % 145,483 8.00 % Bank Only 201,783 11.12 % 108,830 6.00 % 145,107 8.00 % Total Capital (to risk-weighted assets) Consolidated 252,405 13.88 % 145,483 8.00 % 181,854 10.00 % Bank Only 224,545 12.38 % 145,107 8.00 % 181,384 10.00 % December 31, 2020 Leverage Capital (to average assets) Consolidated $ 143,532 9.05 % $ 63,454 4.00 % $ 79,318 5.00 % Bank Only 147,262 9.29 % 63,421 4.00 % 79,276 5.00 % Common Equity Tier 1 risk-based capital ratio (to risk-weighted assets) Consolidated 140,032 11.27 % 55,935 4.50 % 80,795 6.50 % Bank Only 147,262 11.86 % 55,879 4.50 % 80,713 6.50 % Tier 1 Capital (to risk-weighted assets) Consolidated 143,532 11.55 % 74,580 6.00 % 99,440 8.00 % Bank Only 147,262 11.86 % 74,505 6.00 % 99,340 8.00 % Total Capital (to risk-weighted assets) Consolidated 169,123 13.61 % 99,440 8.00 % 124,300 10.00 % Bank Only 162,837 13.11 % 99,340 8.00 % 124,175 10.00 % (1) Presents the minimum capital adequacy requirements that apply to the Bank (excluding the capital conservation buffer) and that would apply to the Company if it were not eligible to operate under the Small Bank Holding Company Policy Statement.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Summary of Estimated Fair Values of Financial Instruments	The following tables present estimated fair values of the Company’s financial instruments as of the period indicated, whether or not recognized or recorded in the consolidated balance sheets at the period indicated: December 31, 2021 Fair Value Measurements Using Carrying Value Estimated Fair Value Level 1 Level 2 Level 3 (dollars in thousands) Financial assets Cash and due from banks $ 14,496 $ 14,496 $ 14,496 - - Interest earning deposits with other banks 798,665 798,665 798,665 - - Investment securities 36,623 36,675 34,998 1,677 - Other investments 8,478 8,478 - 6,156 2,322 Loans receivable, net 1,714,103 1,686,124 - - 1,686,124 Accrued interest receivable 8,105 8,105 - 8,105 - Financial liabilities Deposits $ 2,363,787 2,363,624 $ - $ 2,363,624 $ - FHLB advances 24,999 24,447 - 24,447 - Subordinated debt 24,288 21,891 - 21,891 - Junior subordinated debentures 3,586 2,771 - 2,771 - Accrued interest payable 357 357 - 357 - December 31, 2020 Fair Value Measurements Using Carrying Value Estimated Fair Value Level 1 Level 2 Level 3 (dollars in thousands) Financial assets Cash and due from banks $ 18,965 $ 18,965 $ 18,965 - - Interest earning deposits with other banks 144,152 144,152 144,152 - - Investment securities 23,247 23,356 20,028 3,328 - Other investments 6,059 6,059 - 5,209 850 Loans receivable, net 1,527,876 1,535,541 - - 1,535,541 Accrued interest receivable 8,616 8,616 - 8,616 - Financial liabilities Deposits $ 1,421,307 1,421,534 $ - $ 1,421,534 $ - Paycheck Protection Program Liquidity Facility 153,716 153,716 153,716 FHLB advances 24,999 24,787 24,787 Subordinated debt 9,993 9,913 - 9,913 - Junior subordinated debentures 3,584 2,707 - 2,707 - Accrued interest payable 531 531 - 531 -
Summary of Assets Measured at Fair Value on Recurring Basis	Items measured at fair value on a recurring basis – The following fair value hierarchy table presents information about the Company’s assets that are measured at fair value on a recurring basis at the dates indicated: Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) December 31, 2021 Available-for-sale U.S. Treasury securities $ 34,998 $ - $ - $ 34,998 U.S. Agency collateralized mortgage obligations - 70 - 70 U.S. Agency residential mortgage-backed securities - 3 - 3 Municipals - 256 - 256 $ 34,998 $ 329 $ - $ 35,327 December 31, 2020 Available-for-sale U.S. Treasury securities $ 20,028 $ - $ - $ 20,028 U.S. Agency collateralized mortgage obligations - 100 - 100 U.S. Agency residential mortgage-backed securities - 10 - 10 Municipals - 261 - 261 $ 20,028 $ 371 $ - $ 20,399
Summary of Carrying Value of Equity Securities Without Readily Determinable Fair Values	The following table presents the carrying value of equity securities without readily determinable fair values, as of December 31, 2021 and 2020, with adjustments recorded during the periods presented for those securities with observable price changes. For the Year Ended December 31, (Dollars in thousands) 2021 2020 Carrying value, beginning of period $ 850 $ 500 Addition of equity securities - 750 Downward carrying value changes - (400 ) Upward carrying value changes 1,472 - Carrying value, end of period $ 2,322 $ 850
Summary of Assets and Liabilities Classified as Level 3 and Measured at Fair Value on Nonrecurring Basis	The following table provides a description of the valuation technique, unobservable inputs, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a nonrecurring basis at the dates indicated: Valuation Technique Unobservable Inputs December 31, 2021 Weighted Average Rate December 31, 2020 Weighted Average Rate Impaired loans Collateral valuations Discount to appraised value 8% 9%
Summary of Financial Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	Items measured at fair value on a nonrecurring basis – The following table presents financial assets and liabilities measured at fair value on a nonrecurring basis and the level within the fair value hierarchy of the fair value measurements for those assets at the dates indicated: Level 1 Level 2 Level 3 Total Fair Value (dollars in thousands) December 31, 2021 Impaired loans $ - $ - $ 221 $ 221 Equity securities - - 2,322 2,322 Total $ - $ - $ 2,543 $ 2,543 December 31, 2020 Impaired loans $ - $ - $ 712 $ 712 Equity securities - - 850 850 Total $ - $ - $ 1,562 $ 1,562

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	12 Months Ended
	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Summary of Noninterest Income by Revenue Stream	All of the Company’s revenue from contracts with customers in the scope of Topic 606 is recognized within noninterest income. The following table presents the Company’s noninterest income by revenue stream for the years ended December 31: 2021 2020 (dollars in thousands) Deposit service charges and fees Interchange income $ 1,959 $ 1,501 Merchant service fees 568 478 Overdraft fees 316 334 Other 855 778 BaaS fees (1) 17,307 2,365 Loan referral fees 2,126 1,726 Gain (loss) on equity investment (2) 1,469 (400 ) Gain on sale of branch (2) 1,263 - Mortgage broker fees 920 655 Gain on sale of loans, net (2) 396 82 Loan servicing fees (2) 248 140 Earnings on life insurance (2) 172 200 Lease and sublease income (2) 126 122 Gain on sale of securities, net (2) - - Other income (3) 393 201 Total noninterest income $ 28,118 $ 8,182 (1) Components of BaaS fees are not within the scope of Topic 606 - see description below. (2) Not within the scope of Topic 606. (3) Includes the following immaterial income streams that are within the scope of Topic 606: wire transfer fees, annuity fees, and brokerage fees.
BaaS Fees
Disaggregation Of Revenue [Line Items]
Summary of Noninterest Income by Revenue Stream	The following tables presents the BaaS fees that are within and not within the scope of Topic 606: Year Ended December 31, Increase (Dollars in thousands) 2021 2020 (Decrease) Program income - within the scope of Topic 606 Servicing and other BaaS fees $ 5,011 $ 1,758 $ 3,253 Interchange 701 14 687 Total program income 5,712 1,772 3,940 Reimbursements - within the scope of Topic 606: Reimbursement of expenses 1,004 593 411 Guarantees - not within the scope of Topic 606: Credit enhancement recovery 9,086 - 9,086 Fraud recovery 1,505 - 1,505 Total reimbursements and guarantees 11,595 593 11,002 Total BaaS fees $ 17,307 $ 2,365 $ 14,942

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Earnings Per Common Share	The following is a computation of basic and diluted earnings per common share at the periods indicated: Year ended December 31, 2021 December 31, 2020 (dollars in thousands, except share data) Net Income $ 27,005 $ 15,146 Basic weighted average number common shares outstanding 12,022,954 11,920,735 Dilutive effect of share-based compensation 498,472 288,636 Diluted weighted average number common shares outstanding 12,521,426 12,209,371 Basic earnings per share $ 2.25 $ 1.27 Diluted earnings per share $ 2.16 $ 1.24 Antidilutive stock options and restricted stock outstanding 176,097 226,878 Under the two-class method, earnings available to common shareholders for the period are allocated between common shareholders and participating securities according to dividends declared (or accumulated) and participation rights in undistributed earnings, however the difference in the two-class method was not significant.

Segment Reporting (Tables)

Segment Reporting (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Summary of Financial Information of Reportable Segments and Reconciliation to Consolidated Financial Results	Summarized financial information concerning the Company's reportable segments and the reconciliation to the consolidated financial results is shown in the following tables for the periods indicated: December 31, 2021 December 31, 2020 Community Bank CCBX Total Community Bank CCBX Total (dollars in thousands) Total assets $ 2,282,514 $ 353,003 $ 2,635,517 $ 1,700,121 $ 66,001 $ 1,766,122 Total loans receivable $ 1,396,060 $ 346,675 $ 1,742,735 $ 1,481,475 $ 65,663 $ 1,547,138 Allowance for loan losses $ (20,299 ) $ (8,333 ) $ (28,632 ) $ (19,196 ) $ (66 ) $ (19,262 ) Total deposits $ 1,647,529 $ 716,258 $ 2,363,787 $ 1,352,620 $ 68,687 $ 1,421,307 Year Ended December 31, 2021 December 31, 2020 Community Bank CCBX Total Community Bank CCBX Total (dollars in thousands) Net interest income $ 73,004 $ 6,433 $ 79,437 $ 56,833 $ 553 $ 57,386 Provision for loan losses $ 1,275 $ 8,640 $ 9,915 $ 8,242 $ 66 $ 8,308 Noninterest income (1) $ 10,713 $ 17,405 $ 28,118 $ 5,817 $ 2,365 $ 8,182 Noninterest expense $ 51,547 $ 11,716 $ 63,263 $ 34,563 $ 3,556 $ 38,119 (1) For the year ended December 31, 2021, CCBX noninterest income includes credit enhancement recovery of $9.1 million, servicing and other BaaS fees of $5.0 million, fraud recovery of $1.5 million, reimbursement of expenses of $1.0 million, interchange income of $700,000, and other of $98,000. For the year ended December 31, 2020, CCBX noninterest income includes servicing and other BaaS fees of $1.8 million, reimbursement of expenses of $593,000 and interchange income of $14,000.

Parent Company Only Condensed_2

Parent Company Only Condensed Financial Information (Tables)	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Summary of Condensed Financial Information of Coastal Financial Corporation	Condensed financial information of Coastal Financial Corporation follows: December 31, December 31, 2021 2020 ASSETS Cash $ 24,306 $ 5,071 Investment in trust equities 109 109 Investment in subsidiaries 202,258 147,749 Other investments 2,482 850 Total loans receivable 350 - Other assets 124 122 TOTAL ASSETS $ 229,629 $ 153,901 LIABILITIES AND SHAREHOLDERS' EQUITY Junior subordinated debentures, net of issuances costs $ 3,586 $ 3,584 Subordinated debt, net of debt issuance costs 24,288 9,993 Interest and dividends payable 290 100 Other liabilities 243 7 Shareholders' equity 201,222 140,217 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY $ 229,629 $ 153,901 Year ended December 31, 2021 2020 INCOME Interest earned loans receivable $ 14 $ - Interest bearing other investments 3 3 Unrealized gain (loss) on equity investment 1,469 (400 ) Total income 1,486 (397 ) EXPENSE Interest expense 795 694 Other expenses 576 350 Total expense 1,371 1,044 Loss before income taxes and undistributed net income of subsidiary 115 (1,441 ) Equity in undistributed income of consolidated subsidiaries 26,917 16,299 Income tax expense (benefit) 27 (288 ) NET INCOME $ 27,005 $ 15,146 Year ended December 31, 2021 2020 CASH FLOWS FROM OPERATING ACTIVITIES: Net income $ 27,005 $ 15,146 Adjustments to reconcile net income to net cash used by operating activities: Equity in undistributed income of consolidated subsidiaries (26,917 ) (16,299 ) Stock-based compensation 162 68 Impairment on equity investment (1,469 ) 400 Decrease (increase) in other assets 5 (70 ) Increase in other liabilities 452 13 Net cash used by operating activities (762 ) (742 ) CASH FLOWS FROM INVESTING ACTIVITIES: Investments in subsidiaries (26,500 ) (7,500 ) Investments in loans receivable (350 ) - Investments in other, net (163 ) (750 ) Net cash used by investing activities (27,013 ) (8,250 ) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from exercise of stock options 360 202 Proceeds from public offering, net 32,387 - Proceeds from subordinated debt 24,263 - Repayment of subordinated debt (10,000 ) - Net cash provided by financing activities 47,010 202 NET CHANGE IN CASH 19,235 (8,790 ) Cash, beginning of year 5,071 13,861 Cash, end of year $ 24,306 $ 5,071

Description of Business and S_3

Description of Business and Summary of Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021USD ($)BranchSegmentshares	Dec. 31, 2020USD ($)	Dec. 31, 2018$ / shares
Description Of Business And Summary Of Accounting Policies [Line Items]
Entity incorporation, state name	WA
Number of branches | Branch	14
Number of reportable segments | Segment	2
Investment percentage in capital stock of FHLB, outstanding advances	4.00%
Investment percentage in capital stock of FHLB, total assets	0.12%
Federal home loan bank stock shares redeemed per share par value | $ / shares			$ 1
Investment in federal home loan bank stock	$ 3,100,000	$ 2,400,000
Capital commitment of an investment	500,000
Contribution of investments	0
Loans held for sale	0	0
Reserve for unfunded commitments	1,300,000	625,000
Unrecognized tax benefits	0	0
Unrecognized tax benefits, income tax penalties and interest expense	0	0
Advertising costs	$ 451,000	317,000
Minimum
Description Of Business And Summary Of Accounting Policies [Line Items]
Estimated useful lives of the assets	3 years
Maximum
Description Of Business And Summary Of Accounting Policies [Line Items]
Estimated useful lives of the assets	39 years
SBA
Description Of Business And Summary Of Accounting Policies [Line Items]
Loans serviced	$ 19,300,000
SBA | Other Assets
Description Of Business And Summary Of Accounting Policies [Line Items]
Servicing assets	269,000
USDA
Description Of Business And Summary Of Accounting Policies [Line Items]
Loans serviced		20,600,000
USDA | Other Assets
Description Of Business And Summary Of Accounting Policies [Line Items]
Servicing assets		298,000
Federal Reserve Bank Stock
Description Of Business And Summary Of Accounting Policies [Line Items]
Investment in federal reserve bank stock	2,800,000	2,800,000
Pacific Coast Banker's Bancshares
Description Of Business And Summary Of Accounting Policies [Line Items]
Investment at cost	100,000	100,000
Technology Company
Description Of Business And Summary Of Accounting Policies [Line Items]
Investment at cost	$ 100,000
Investment, shares | shares	9,000
Impairment on equity investment		400,000
Specialized Bank Technology Company
Description Of Business And Summary Of Accounting Policies [Line Items]
Investment at cost	$ 2,200,000	$ 750,000
Investment in common stock | shares	1,600,000
Investment in preferred stock | shares	873,853
Unrealized holding gain on equity investment	$ 1,500,000
Investment Equity Funds
Description Of Business And Summary Of Accounting Policies [Line Items]
Capital commitment of an investment	1,100,000
Contribution of investments	163,000
Realized investment gains (losses)	3,000
Equity interest investments	$ 160,000

Recent Accounting Standards - A

Recent Accounting Standards - Additional Information (Details) - Topic 718	Dec. 31, 2021
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 1, 2020
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true

Investments Securities - Amorti

Investments Securities - Amortized Cost and Fair Values of Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Available-for-Sale and Held-to-Maturity Securities [Line Items]
Available-for-sale, Amortized Cost	$ 35,322	$ 20,357
Available-for-sale, Gross Unrealized Gains	6	42
Available-for-sale, Gross Unrealized Losses	(1)
Available-for-sale, Fair Value	35,327	20,399
Held-to-maturity, Amortized Cost	1,296	2,848
Held-to-maturity, Fair Value	1,348
Total investment securities, Amortized Cost	36,618	23,205
Total investment securities, Gross Unrealized Gains	58	151
Total investment securities, Gross Unrealized Losses	(1)
Total investment securities, Fair Value	36,675	23,356
U.S. Treasury Securities
Available-for-Sale and Held-to-Maturity Securities [Line Items]
Available-for-sale, Amortized Cost	34,999	19,997
Available-for-sale, Gross Unrealized Gains		31
Available-for-sale, Gross Unrealized Losses	(1)
Available-for-sale, Fair Value	34,998	20,028
U.S. Agency Collateralized Mortgage Obligations
Available-for-Sale and Held-to-Maturity Securities [Line Items]
Available-for-sale, Amortized Cost	68	96
Available-for-sale, Gross Unrealized Gains	2	4
Available-for-sale, Fair Value	70	100
U.S. Agency Residential Mortgage-Backed Securities
Available-for-Sale and Held-to-Maturity Securities [Line Items]
Available-for-sale, Amortized Cost	3	10
Available-for-sale, Fair Value	3	10
Held-to-maturity, Amortized Cost	1,296	2,848
Held-to-maturity, Gross Unrealized Gains	52	109
Held-to-maturity, Fair Value	1,348	2,957
Municipals
Available-for-Sale and Held-to-Maturity Securities [Line Items]
Available-for-sale, Amortized Cost	252	254
Available-for-sale, Gross Unrealized Gains	4	7
Available-for-sale, Fair Value	$ 256	$ 261

Investments Securities - Amor_2

Investments Securities - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Available-for-Sale and Held-to-Maturity Securities [Line Items]
Available-for-Sale, Amortized Cost, Amounts maturing in One year or less	$ 34,999
Available-for-Sale, Amortized Cost, Amounts maturing in After one year through five years	252
Available-for-Sale, Amortized Cost. Amounts maturity with single maturity	35,251
Available-for-sale, Amortized Cost	35,322	$ 20,357
Available-for-Sale, Fair Value, Amounts maturing in One year or less	34,998
Available-for-Sale, Fair Value, Amounts maturing in After one year through five years	256
Available-for-Sale, Fair Value, Amounts maturing with single maturity	35,254
Available-for-Sale, Fair Value	35,327	20,399
Held-to-maturity, Amortized Cost	1,296	$ 2,848
Held-to-Maturity, Fair Value	1,348
U.S. Agency Residential Mortgage-backed Securities and Collateralized Mortgage Obligations
Available-for-Sale and Held-to-Maturity Securities [Line Items]
Available-for-Sale, Amortized Cost, Amounts maturity without single maturity	71
Available-for-Sale, Fair Value, Amounts maturing without single maturity	73
Held-to-Maturity, Amortized Cost, Amounts maturity without single maturity	1,296
Held-to-Maturity, Fair Value, Amounts maturing without single maturity	$ 1,348

Investments Securities - Additi

Investments Securities - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021USD ($)SecurityInvestmentSecurity	Dec. 31, 2020USD ($)SecurityInvestmentSecurity
Not Found During Migration Deprecated Concept Investment [Line Items]
Investment securities with amortized cost pledged to secure public deposits	$ 36,000,000	$ 22,000,000
Purchase of securities	$ 117,493,000	$ 29,986,000
Number of investment securities sold | InvestmentSecurity	0	0
Number of securities in unrealized loss position | Security	4	0
Securities other than temporarily impaired	$ 0
US Treasury Bill Securities
Not Found During Migration Deprecated Concept Investment [Line Items]
Number of securities purchased | Security	16
Purchase of securities	$ 117,500,000

Investments Securities - Summar

Investments Securities - Summary of Investment Securities Continuous Unrealized Loss Position (Details) $ in Thousands	Dec. 31, 2021USD ($)
Schedule Of Available For Sale Securities [Line Items]
Total investment securities, Fair Value, Less Than 12 Months	$ 34,998
Total investment securities, Gross Unrealized Losses, Less Than 12 Months	(1)
Total investment securities, Total, Fair Value	34,998
Total investment securities, Total, Gross Unrealized Losses	(1)
U.S. Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale, Fair Value, Less Than 12 Months	34,998
Available-for-sale, Gross Unrealized Losses, Less Than 12 Months	(1)
Available-for-sale, Total Fair Value	34,998
Available-for-sale, Total Gross Unrealized Losses	$ (1)

Loans and Allowance for Loan _3

Loans and Allowance for Loan Losses ("ALLL") - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	$ 1,751,501	$ 1,556,333
Net deferred origination fees and premiums	(8,766)	(9,195)
Loans receivable	1,742,735	1,547,138
Commercial and Industrial Loans
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	419,060	539,200
Construction, Land and Land Development
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	183,594	94,423
Residential Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	204,389	143,869
Commercial Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	835,587	774,925
Consumer and Other Loans
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	$ 108,871	$ 3,916

Loans and Allowance for Loan _4

Loans and Allowance for Loan Losses ("ALLL") - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021USD ($)Loan	Dec. 31, 2020USD ($)Loan
Loans And Leases Receivable Disclosure [Line Items]
Balance of SBA and USDA loans and participations serviced	$ 19,300,000	$ 20,600,000
Overdrafts included in loans	1,300,000	31,000
Pledged loans for borrowing lines at FHLB and FRB	183,500,000	326,700,000
Balance of main street lending program loans and participations serviced	56,300,000	56,300,000
Main street lending program loans outstanding	4,800,000	3,000,000
Purchased loans	12,800,000	19,300,000
Unamortized premiums	223,000	306,000
Purchased participation loans	$ 27,900,000	$ 44,900,000
Number of loans restructured as troubled debt restructurings | Loan	0	0
Additional funds to borrowers with troubled debt restructurings	$ 0
Troubled debt restructuring	$ 0	$ 0
Minimum
Loans And Leases Receivable Disclosure [Line Items]
Percentage of collateral coverage to loan balance	100.00%
Loan repayment extended period of time	6 months
Sustained repayment performance period of loan placed on nonaccrual	6 months
Community Bank Overdrafts
Loans And Leases Receivable Disclosure [Line Items]
Overdrafts included in loans	$ 13,000	31,000
CCBX Overdrafts
Loans And Leases Receivable Disclosure [Line Items]
Overdrafts included in loans	1,300,000	0
CCBX Loans
Loans And Leases Receivable Disclosure [Line Items]
Residential real estate loans	36,900,000	0
Consumer and other loans	106,800,000	67,000
CCBX Capital Call Lines
Loans And Leases Receivable Disclosure [Line Items]
Commercial and industrial loans	202,900,000	65,600,000
Commercial and Industrial Loans
Loans And Leases Receivable Disclosure [Line Items]
Capital call lines, provided to venture capital firms	202,900,000	65,600,000
Commercial and Industrial Loans | CARES Act Paycheck Protection Program
Loans And Leases Receivable Disclosure [Line Items]
Balance of SBA and USDA loans and participations serviced	111,800,000	$ 365,800,000
Commercial and Industrial Loans | Small Business Administration
Loans And Leases Receivable Disclosure [Line Items]
Percentage of unsecured, guaranteed and loan		100.00%
Consumer Loans | CCBX Loans
Loans And Leases Receivable Disclosure [Line Items]
Purchased loans	$ 59,700,000	$ 0

Loans and Allowance for Loan _5

Loans and Allowance for Loan Losses ("ALLL") - Summary of an Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans	$ 1,751,501	$ 1,556,333
Recorded Investment 90 Days or More Past Due and Still Accruing	1,506
Less net deferred origination fees and premiums	(8,766)	(9,195)
Loans receivable	1,742,735	1,547,138
30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	4,969	1,242
90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	1,599	597
Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	6,568	1,839
Current
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	1,744,933	1,554,494
Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans	419,060	539,200
Commercial and Industrial Loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	259	133
Commercial and Industrial Loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	38	537
Commercial and Industrial Loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	297	670
Commercial and Industrial Loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	418,763	538,530
Construction, Land and Land Development
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans	183,594	94,423
Construction, Land and Land Development | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable		1
Construction, Land and Land Development | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable		1
Construction, Land and Land Development | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	183,594	94,422
Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans	204,389	143,869
Recorded Investment 90 Days or More Past Due and Still Accruing	39
Residential Real Estate | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	809	1,108
Residential Real Estate | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	94	60
Residential Real Estate | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	903	1,168
Residential Real Estate | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	203,486	142,701
Commercial Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans	835,587	774,925
Commercial Real Estate | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	835,587	774,925
Consumer and Other Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Total Loans	108,871	3,916
Recorded Investment 90 Days or More Past Due and Still Accruing	1,467
Consumer and Other Loans | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	3,901
Consumer and Other Loans | 90 Days or More Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	1,467
Consumer and Other Loans | Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	5,368
Consumer and Other Loans | Current
Financing Receivable Recorded Investment Past Due [Line Items]
Financing receivable	$ 103,503	$ 3,916

Loans and Allowance for Loan _6

Loans and Allowance for Loan Losses ("ALLL") - Summary of Information Pertaining to Impaired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable Impaired [Line Items]
Unpaid Contractual Principal Balance	$ 242	$ 1,022
Recorded Investment With No Allowance	55	712
Recorded Investment With Allowance	166
Total Recorded Investment	221	712
Related Allowance	132
Commercial and Industrial Loans
Financing Receivable Impaired [Line Items]
Unpaid Contractual Principal Balance	173	834
Recorded Investment With No Allowance		537
Recorded Investment With Allowance	166
Total Recorded Investment	166	537
Related Allowance	132
Residential Real Estate
Financing Receivable Impaired [Line Items]
Unpaid Contractual Principal Balance	69	188
Recorded Investment With No Allowance	55	175
Total Recorded Investment	$ 55	$ 175

Loans and Allowance for Loan _7

Loans and Allowance for Loan Losses ("ALLL") - Summary of Average Recorded Investment and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable Impaired [Line Items]
Average Recorded Investment	$ 641	$ 2,130
Commercial and Industrial Loans
Financing Receivable Impaired [Line Items]
Average Recorded Investment	498	719
Construction, Land and Land Development
Financing Receivable Impaired [Line Items]
Average Recorded Investment		1,110
Residential Real Estate
Financing Receivable Impaired [Line Items]
Average Recorded Investment	$ 143	165
Commercial Real Estate
Financing Receivable Impaired [Line Items]
Average Recorded Investment		$ 136

Loans and Allowance for Loan _8

Loans and Allowance for Loan Losses ("ALLL") - Analysis of Nonaccrual Loans by Category (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable Recorded Investment Past Due [Line Items]
Total nonaccrual loans	$ 221	$ 712
Commercial and Industrial Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Total nonaccrual loans	166	537
Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total nonaccrual loans	$ 55	$ 175

Loans and Allowance for Loan _9

Loans and Allowance for Loan Losses ("ALLL") - Summary of Loans by Credit Quality Risk Rating (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	$ 1,751,501	$ 1,556,333
Less net deferred origination fees and premiums	(8,766)	(9,195)
Loans receivable	1,742,735	1,547,138
Commercial and Industrial Loans
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	419,060	539,200
Construction, Land and Land Development
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	183,594	94,423
Residential Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	204,389	143,869
Commercial Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	835,587	774,925
Consumer and Other Loans
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	108,871	3,916
Pass
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	1,736,489	1,543,675
Pass | Commercial and Industrial Loans
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	416,642	538,149
Pass | Construction, Land and Land Development
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	183,594	94,423
Pass | Residential Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	204,173	143,540
Pass | Commercial Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	824,676	763,647
Pass | Consumer and Other Loans
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	107,404	3,916
Other Loans Especially Mentioned
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	13,213	11,829
Other Loans Especially Mentioned | Commercial and Industrial Loans
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	2,180	397
Other Loans Especially Mentioned | Residential Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	122	154
Other Loans Especially Mentioned | Commercial Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	10,911	11,278
Sub-Standard
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	1,799	829
Sub-Standard | Commercial and Industrial Loans
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	238	654
Sub-Standard | Residential Real Estate
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	94	$ 175
Sub-Standard | Consumer and Other Loans
Loans And Leases Receivable Disclosure [Line Items]
Loans, gross	$ 1,467

Loans and Allowance for Loan_10

Loans and Allowance for Loan Losses ("ALLL") - Summary of Allocation of Allowance for Loan Loss as well as Activity in Allowance for Loan Loss Attributed to Various Segments in Loan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans And Leases Receivable Disclosure [Line Items]
ALLL Balance	$ 19,262	$ 11,470
Provision for loan losses or (recapture)		9,915	$ 8,308
Loans receivable allowance including provision losses or (recapture)		29,177	19,778
Loans charged-off	(640)	(525)
Recoveries of loans previously charged-off	95	9
Net (charge-offs) recoveries	(545)	(516)
ALLL Balance	28,632	19,262
Allowances
Amounts allocated to Individually evaluated for impairment	132
Amounts allocated to Collectively evaluated for impairment	28,500	19,262
ALLL Balance	28,632	19,262
Loans
Loans individually evaluated for impairment	221	712
Loans collectively evaluated for impairment	1,751,280	1,555,621
Total Loans	1,751,501	1,556,333
Commercial and Industrial Loans
Loans And Leases Receivable Disclosure [Line Items]
ALLL Balance	3,353	2,366
Provision for loan losses or (recapture)		23	1,123
Loans receivable allowance including provision losses or (recapture)		3,376	3,489
Loans charged-off	(222)	(141)
Recoveries of loans previously charged-off	67	5
Net (charge-offs) recoveries	(155)	(136)
ALLL Balance	3,221	3,353
Allowances
Amounts allocated to Individually evaluated for impairment	132
Amounts allocated to Collectively evaluated for impairment	3,089	3,353
ALLL Balance	3,221	3,353
Loans
Loans individually evaluated for impairment	166	537
Loans collectively evaluated for impairment	418,894	538,663
Total Loans	419,060	539,200
Construction, Land and Land Development
Loans And Leases Receivable Disclosure [Line Items]
ALLL Balance	3,545	2,745
Provision for loan losses or (recapture)		3,439	1,169
Loans receivable allowance including provision losses or (recapture)		6,984	3,914
Loans charged-off		(369)
Net (charge-offs) recoveries		(369)
ALLL Balance	6,984	3,545
Allowances
Amounts allocated to Collectively evaluated for impairment	6,984	3,545
ALLL Balance	6,984	3,545
Loans
Loans collectively evaluated for impairment	183,594	94,423
Total Loans	183,594	94,423
Residential Real Estate
Loans And Leases Receivable Disclosure [Line Items]
ALLL Balance	3,410	2,069
Provision for loan losses or (recapture)		1,267	1,341
Loans receivable allowance including provision losses or (recapture)		4,677	3,410
Loans charged-off	(79)
Net (charge-offs) recoveries	(79)
ALLL Balance	4,598	3,410
Allowances
Amounts allocated to Collectively evaluated for impairment	4,598	3,410
ALLL Balance	4,598	3,410
Loans
Loans individually evaluated for impairment	55	175
Loans collectively evaluated for impairment	204,334	143,694
Total Loans	204,389	143,869
Commercial Real Estate
Loans And Leases Receivable Disclosure [Line Items]
ALLL Balance	7,810	3,126
Provision for loan losses or (recapture)		(1,220)	4,684
Loans receivable allowance including provision losses or (recapture)		6,590	7,810
ALLL Balance	6,590	7,810
Allowances
Amounts allocated to Collectively evaluated for impairment	6,590	7,810
ALLL Balance	6,590	7,810
Loans
Loans collectively evaluated for impairment	835,587	774,925
Total Loans	835,587	774,925
Consumer and Other Loans
Loans And Leases Receivable Disclosure [Line Items]
ALLL Balance	127	104
Provision for loan losses or (recapture)		7,276	34
Loans receivable allowance including provision losses or (recapture)		7,403	138
Loans charged-off	(339)	(15)
Recoveries of loans previously charged-off	28	4
Net (charge-offs) recoveries	(311)	(11)
ALLL Balance	7,092	127
Allowances
Amounts allocated to Collectively evaluated for impairment	7,092	127
ALLL Balance	7,092	127
Loans
Loans collectively evaluated for impairment	108,871	3,916
Total Loans	108,871	3,916
Unallocated
Loans And Leases Receivable Disclosure [Line Items]
ALLL Balance	1,017	1,060
Provision for loan losses or (recapture)		(870)	(43)
Loans receivable allowance including provision losses or (recapture)		147	$ 1,017
ALLL Balance	147	1,017
Allowances
Amounts allocated to Collectively evaluated for impairment	147	1,017
ALLL Balance	$ 147	$ 1,017

Premises and Equipment - Summar

Premises and Equipment - Summary of Investment in Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Premises and equipment, gross	$ 26,891	$ 25,469
Less accumulated depreciation and amortization	(9,672)	(8,361)
Premises and equipment, net	17,219	17,108
Land
Property Plant And Equipment [Line Items]
Premises and equipment, gross	2,672	3,051
Buildings
Property Plant And Equipment [Line Items]
Premises and equipment, gross	10,086	10,533
Leasehold Improvements
Property Plant And Equipment [Line Items]
Premises and equipment, gross	4,117	3,952
Furniture
Property Plant And Equipment [Line Items]
Premises and equipment, gross	2,473	2,273
Equipment
Property Plant And Equipment [Line Items]
Premises and equipment, gross	5,234	4,788
Software
Property Plant And Equipment [Line Items]
Premises and equipment, gross	934	703
Projects in process
Property Plant And Equipment [Line Items]
Premises and equipment, gross	$ 1,375	$ 169

Premises and Equipment - Additi

Premises and Equipment - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Abstract]
Depreciation and amortization on premises and equipment	$ 1,587	$ 1,356

Leases - Additional Information

Leases - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021USD ($)SubleaseFacility	Dec. 31, 2020USD ($)
Lessee Lease Description [Line Items]
Weighted average discount rate used to discount operating lease liabilities	3.40%
Number of sublease not yet commenced | Sublease	1
Operating lease, option to extend description	Operating lease terms include options to extend when it is reasonably certain that the Company will exercise such options, determined on a lease-by-lease basis.
Operating lease, existence of option to extend	true
Operating leases weighted-average remaining lease term	8 years 6 months
Operating lease rental expense	$ 1,400,000	$ 1,500,000
Sublease and lease income	$ 127,000	$ 122,000
Number of facilities under lease | Facility	1
ATM Machines
Lessee Lease Description [Line Items]
Prepaid capital lease, term		5 years
Depreciation	$ 133,000	$ 33,000
Remaining depreciation	480,000
Disposals	$ 19,000
Minimum
Lessee Lease Description [Line Items]
Operating leases lease term	1 year
Operating lease, option to renewal period	5 years
Maximum
Lessee Lease Description [Line Items]
Operating leases lease term	23 years
Operating lease, option to renewal period	10 years

Leases - Summary of Minimum Ann

Leases - Summary of Minimum Annual Lease Payments under Lease Terms (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
2022	$ 1,280
2023	1,272
2024	864
2025	713
2026	719
2027 and thereafter	2,490
Total lease payments	7,338
Less: amounts representing interest	1,018
Present value of lease liabilities	$ 6,320	$ 7,323

Leases - Summary of Components

Leases - Summary of Components of Total Lease Expense and Operating Cash Flows (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)
Lease expense:
Operating lease expense	$ 1,283
Variable lease expense	148
Total lease expense	1,431
Cash paid:
Cash paid reducing operating lease liabilities	$ 1,419

Deposits - Composition of Conso

Deposits - Composition of Consolidated Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Time Deposits By Maturity [Abstract]
Demand, noninterest bearing	$ 1,355,908	$ 592,261
Now and money market	789,709	658,323
Savings	103,956	77,611
Total core deposits	2,249,573	1,328,195
BaaS brokered deposits	70,757	33,482
Time deposits less than $250,000	31,057	41,145
Time deposits $250,000 and over	12,400	18,485
Total deposits	$ 2,363,787	$ 1,421,307

Deposits - Schedule of Maturity

Deposits - Schedule of Maturity Distribution of Time Deposits (Details) $ in Thousands	Dec. 31, 2021USD ($)
Deposits [Abstract]
Twelve months	$ 33,985
One to two years	4,670
Two to three years	2,723
Three to four years	990
Four to five years	1,089
Total time deposits	$ 43,457

Deposits - Additional Informati

Deposits - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Deposit Liability [Line Items]
Noninterest-bearing deposit	$ 1,355,908	$ 592,261
CCBX Deposits
Deposit Liability [Line Items]
Noninterest-bearing deposit	$ 636,700
Noninterest-bearing deposit interest rate	79.00%
Noninterest-bearing Domestic Deposit Description	At December 31, 2021, approximately 79% of our CCBX deposit that are currently noninterest bearing will become interest bearing when the Federal Open Market Committee (“FOMC”) raises the Fed Funds rate from 0.25% to 0.50% and the amount of deposits that move to interest bearing will increase as rates are raised by the FOMC thereafter.  Once the Fed Funds rate increases to 1.00%, most of the CCBX noninterest bearing deposits will be interest bearing.
Expected federal funds rate for noninterest bearing deposits to be interest bearing	1.00%
Minimum | CCBX Deposits
Deposit Liability [Line Items]
Fed Funds rate	0.25%
Maximum | CCBX Deposits
Deposit Liability [Line Items]
Fed Funds rate	0.50%

Federal Home Loan Bank Advanc_3

Federal Home Loan Bank Advances and Other Borrowings - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Federal home loan bank advances	$ 24,999,000	$ 24,999,000
Federal home loan bank advances, collateral pledged	140,100,000	129,500,000
Available borrowing capacity	76,300,000
Pledged loans for borrowing lines at FHLB and FRB	$ 183,500,000	326,700,000
Balance outstanding in PPPLF Advance		$ 153,716,000
PPPLF Borrowings
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Interest rate	0.00%	0.35%
Balance outstanding in PPPLF Advance	$ 0	$ 153,716,000
PCBB
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Unsecured line of credit	$ 50,000,000
Line of credit facility expiration date	Jun. 30, 2022
Outstanding borrowing	$ 0	0
Borrower-in-Custody
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Unsecured line of credit	21,900,000	21,200,000
Outstanding borrowing	0	0
Pledged loans for borrowing lines at FHLB and FRB	43,400,000	43,500,000
FHLB Overnight Borrowings
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Federal home loan bank advances	0	0
FHLB Long-term Borrowings
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Federal home loan bank advances	24,999,000	$ 24,999,000
FHLB Long-term Borrowings 2.25 Years Remaining Term
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Federal home loan bank advances	$ 10,000,000
Federal home loan bank advances, maturity date	Mar. 31, 2023
FHLB Long-term Borrowings 4.25 Years Remaining Term
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Federal home loan bank advances	$ 15,000,000
Federal home loan bank advances, maturity date	Mar. 31, 2025

Summary of FHLB Borrowings (Det

Summary of FHLB Borrowings (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Balance outstanding at end of period: FHLB Advances	$ 24,999,000	$ 24,999,000
FHLB Overnight Borrowings
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Maximum amount outstanding at any month-end during period: FHLB Advances	$ 100,000	2,260,000
Average outstanding balance during period: FHLB Advances		$ 67,000
Weighted average interest rate during period: FHLB Advances	0.25%	1.84%
Balance outstanding at end of period: FHLB Advances	$ 0	$ 0
Weighted average interest rate at end of period: FHLB Advances	0.00%	0.00%
FHLB Long-term Borrowings
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Maximum amount outstanding at any month-end during period: FHLB Advances	$ 24,999,000	$ 24,999,000
Average outstanding balance during period: FHLB Advances	$ 24,999,000	$ 20,669,000
Weighted average interest rate during period: FHLB Advances	1.13%	1.13%
Balance outstanding at end of period: FHLB Advances	$ 24,999,000	$ 24,999,000
Weighted average interest rate at end of period: FHLB Advances	1.13%	1.13%

Summary of PPPLF Borrowings (De

Summary of PPPLF Borrowings (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Balance outstanding at end of period: PPPLF Advances		$ 153,716,000
PPPLF Borrowings
Federal Home Loan Bank Advances And Other Borrowings [Line Items]
Maximum amount outstanding at any month-end during period: PPPLF Advances	$ 185,894,000	202,595,000
Average outstanding balance during period: PPPLF Advances	$ 68,699,000	$ 124,068,000
Weighted average interest rate during period: PPPLF Advances	0.35%	0.35%
Balance outstanding at end of period: PPPLF Advances	$ 0	$ 153,716,000
Weighted average interest rate at end of period: PPPLF Advances	0.00%	0.35%

Subordinated Debt - Schedule of

Subordinated Debt - Schedule of Subordinated Debt (Details) - USD ($) $ in Thousands	Aug. 18, 2021	Dec. 31, 2021	Dec. 31, 2020
Subordinated Borrowing [Line Items]
Total liability, at carrying value		$ 24,288	$ 9,993
Subordinated Debt
Subordinated Borrowing [Line Items]
Principal amount	$ 25,000	25,000	10,000
Less: unamortized debt issuance costs		(712)	(7)
Total liability, at carrying value		$ 24,288	$ 9,993
Stated Maturity:	Sep. 1, 2031	Sep. 1, 2031	Aug. 1, 2026
Debt instrument description		Fixed @ 3.375% 5 years; then 3-month SOFR +2.76% starting  September 1, 2026	Fixed @ 5.65% 5 years; then Wall Street Prime +2.5% starting August 1, 2021
Interest Rate	3.375%	3.375%	5.65%
Term	5 years	5 years	5 years
Subordinated Debt | Wall Street Prime
Subordinated Borrowing [Line Items]
Variable interest rate		2.76%	2.50%
Debt instrument variable interest rate commencement date		Sep. 1, 2026	Aug. 1, 2021

Subordinated Debt - Additional

Subordinated Debt - Additional Information (Details) - USD ($)	Aug. 18, 2021	Dec. 31, 2021	Dec. 31, 2020
Subordinated Borrowing [Line Items]
Repayments of subordinated debt		$ 10,000,000
Accrued interest payable		357,000	$ 531,000
Subordinated Debt
Subordinated Borrowing [Line Items]
Debt instrument, carrying amount	$ 25,000,000	$ 25,000,000	$ 10,000,000
Debt instrument, maturity date	Sep. 1, 2031	Sep. 1, 2031	Aug. 1, 2026
Debt instrument, term	5 years	5 years	5 years
Interest rate	3.375%	3.375%	5.65%
Repayments of subordinated debt			$ 10,000,000
Interest expense, debt		$ 711,000	589,000
Accrued interest payable		$ 286,000	$ 96,000
3-month SOFR | Subordinated Debt
Subordinated Borrowing [Line Items]
Debt instrument, variable rate	2.76%
Wall Street Prime | Subordinated Debt
Subordinated Borrowing [Line Items]
Debt instrument, variable rate		2.76%	2.50%

Junior Subordinated Debenture_2

Junior Subordinated Debentures - Schedule of Junior Subordinated Debentures (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 15, 2004
Debt Instrument [Line Items]
Total liability, at carrying value	$ 3,586,000	$ 3,584,000
Junior Subordinated Debentures
Debt Instrument [Line Items]
Principal amount	3,609,000	3,609,000	$ 3,609,000
Less: unamortized debt issuance costs	(23,000)	(25,000)
Total liability, at carrying value	$ 3,586,000	$ 3,584,000
Stated Maturity:	Dec. 15, 2034	Dec. 15, 2034
Junior Subordinated Debentures | LIBOR
Debt Instrument [Line Items]
Interest Rate Spread:	2.10%	2.10%

Junior Subordinated Debenture -

Junior Subordinated Debenture - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 15, 2004
Debt Instrument [Line Items]
Accrued interest payable	$ 357,000	$ 531,000
Junior Subordinated Debentures
Debt Instrument [Line Items]
Issuance of debentures	$ 3,609,000	3,609,000	$ 3,609,000
Interest payable	quarterly
Interest expenses	$ 84,000	105,000
Accrued interest payable	4,000	$ 4,000
Principal payments due in next five years	$ 0
Junior Subordinated Debentures | LIBOR
Debt Instrument [Line Items]
Debt instrument, variable rate	2.10%	2.10%
Junior Subordinated Debentures | Indexed Rate
Debt Instrument [Line Items]
Interest rate	2.30%	2.32%

Income Taxes - Components of In

Income Taxes - Components of Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Current tax expense	$ 10,383	$ 5,069
Deferred tax benefit	(3,011)	(1,074)
Total tax expense	$ 7,372	$ 3,995

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Current net income tax payable	$ 1,200,000
Net income tax receivable		$ 599,000
Valuation allowance changes, description	The realization of deferred income tax assets is regularly assessed and a valuation allowance is recorded if it is “more likely than not” that all or a portion of the deferred tax asset will not be realized. “More likely than not” is defined as greater than a 50% chance.
Deferred tax assets valuation allowance	$ 0
Tax year open for examination	2018
Federal
Income Tax Disclosure [Line Items]
Operating loss carryforwards	$ 0

Income Taxes - Summary of Recon

Income Taxes - Summary of Reconciliation of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal income tax at statutory rate	$ 7,219	$ 4,020
State income taxes	256
Effect of tax-exempt interest income	(100)	(110)
Stock-based compensation	(43)	51
Bank owned life insurance earnings	(36)	(42)
Excess executive compensation	58
Other	18	76
Total tax expense	$ 7,372	$ 3,995
Federal income tax at statutory rate	21.00%	21.00%
State income taxes	0.70%	0.00%
Effect of tax-exempt interest income	(0.30%)	(0.60%)
Stock-based compensation	(0.10%)	0.30%
Bank owned life insurance earnings	(0.10%)	(0.20%)
Excess executive compensation	0.20%
Other	0.10%
Effective income tax rate reconciliation	21.40%	20.50%

Income Taxes - Schedule of Net

Income Taxes - Schedule of Net Deferred Tax Asset Temporary Differences and Carryforward Items (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Allowance for loan losses	$ 6,223	$ 4,045
Lease liability	1,374	1,538
Accrued expenses	596	507
Deferred compensation	162	181
Allowance for unfunded commitments	277	131
Nonqualified stock options	107	104
Interest on nonaccrual loans	10	41
Equity investment write-down		84
Restricted stock options	196	33
Deferred income	58	15
Other	37
Total deferred tax assets	9,040	6,679
Deferred tax liabilities:
Right of use asset	(1,327)	(1,495)
Depreciation and amortization	(661)	(1,376)
Net unrealized gain on equity security	(233)
Net unrealized gain on available-for-sale securities	(1)	(9)
Total deferred tax liabilities	(2,222)	(2,880)
Net deferred tax asset	$ 6,818	$ 3,799

Related Party Transactions - Su

Related Party Transactions - Summary of Loan Transations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Related Party Transactions [Abstract]
Beginning Balance January 1	$ 8,342	$ 10,315
Additions	1,018	1,369
Payments	(1,384)	(566)
No longer related parties		(2,776)
Ending Balance December 31	$ 7,976	$ 8,342

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021USD ($)Facility	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Related Party Transaction [Line Items]
Related party deposits held	$ 4,500,000	$ 5,700,000
Number of facilities under lease | Facility	1
Loans, related parties	$ 7,976,000	$ 8,342,000	$ 10,315,000
Everett Branch Facility
Related Party Transaction [Line Items]
Operating monthly rental payments	46,000
Rent paid under related party	$ 546,000

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract]
Reserve for unfunded commitments	$ 1,300,000	$ 625,000
Commitment losses	$ 0	$ 0

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Financial Instruments Contract Amount Represents Credit Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Commitments to extend credit	$ 909,562	$ 317,950
Standby Letters of Credit
Loss Contingencies [Line Items]
Commitments to extend credit	3,040	2,754
Equity Investment Commitments
Loss Contingencies [Line Items]
Commitments to extend credit	1,090
Commercial and Industrial Loans
Loss Contingencies [Line Items]
Commitments to extend credit	486,804	189,884
Construction Commercial Real Estate Loans
Loss Contingencies [Line Items]
Commitments to extend credit	90,946	69,866
Construction Residential Real Estate Loans
Loss Contingencies [Line Items]
Commitments to extend credit	43,339	18,489
Commercial Real Estate Loans
Loss Contingencies [Line Items]
Commitments to extend credit	23,248	20,482
Residential Real Estate Loans
Loss Contingencies [Line Items]
Commitments to extend credit	101,715	18,128
Other
Loss Contingencies [Line Items]
Commitments to extend credit	$ 163,510	$ 1,101

Commitments and Contingencies_3

Commitments and Contingencies - Summary of Commitments to Extend Credit on CCBX Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Commitments to extend credit	$ 909,562	$ 317,950
Commercial and Industrial Loans
Loss Contingencies [Line Items]
Commitments to extend credit	486,804	189,884
CCBX Loans
Loss Contingencies [Line Items]
Commitments to extend credit	649,675	128,208
CCBX Loans | Commercial and Industrial Loans
Loss Contingencies [Line Items]
Commitments to extend credit	415,956	128,208
Residential Real Estate Loans
Loss Contingencies [Line Items]
Commitments to extend credit	101,715	18,128
Residential Real Estate Loans | CCBX Loans
Loss Contingencies [Line Items]
Commitments to extend credit	71,453
Other
Loss Contingencies [Line Items]
Commitments to extend credit	163,510	$ 1,101
Other | CCBX Loans
Loss Contingencies [Line Items]
Commitments to extend credit	$ 162,266

Concentration of Credit Risk -

Concentration of Credit Risk - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Concentration Risk [Line Items]
Uninsured deposits in bank	$ 33,600,000	$ 46,000,000
Maximum
Concentration Risk [Line Items]
Cash, FDIC Insured Amount	$ 250,000
Banking regulations, credit limitation percentage based on banks capital and surplus	20.00%

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Details)	Apr. 30, 2018shares	Oct. 31, 2021shares	May 31, 2021Director$ / sharesshares	Apr. 30, 2021shares	Jan. 31, 2021$ / sharesshares	Dec. 31, 2021USD ($)shares	Dec. 31, 2020USD ($)shares	May 24, 2021shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options granted to employees | shares						0
Exercised, Aggregate Intrinsic Value						$ 1,177,000	$ 253,000
Total unrecognized compensation cost related to nonvested stock options granted						1,500,000
Compensation expense						$ 1,284,000	630,000
Stock Option Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to nonvested stock options/ RSA granted, weighted-average period						5 years 1 month 6 days
Compensation expense						$ 357,000	405,000
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost related to nonvested stock options granted						$ 5,200,000
Unrecognized compensation cost related to nonvested stock options/ RSA granted, weighted-average period						5 years 8 months 12 days
Compensation expense						$ 616,000,000	151,000,000
Number of shares granted | shares						189,258
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to nonvested stock options/ RSA granted, weighted-average period						2 years 1 month 6 days
Compensation expense						$ 134,000	$ 7,000
Total unrecognized compensation cost related to nonvested restricted stock awards						$ 54,000
Restricted Stock | Employee
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted | shares					5,978
Estimated fair value per share | $ / shares					$ 20.91
2018 Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate of common stock, shares authorized | shares								600,000
Common stock, additional shares authorized | shares	0
Shares available to be granted | shares						667,440
Stock options granted to employees | shares						0	0
2018 Omnibus Incentive Plan | Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted | shares				1,000	84,258
Stock options vesting period				5 years	5 years
2018 Omnibus Incentive Plan | Performance-Based Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted | shares		100,000
Stock options vesting period expiration date		Oct. 4, 2027
2018 Omnibus Incentive Plan | Restricted Stock | Two-year Cliff Vesting Period
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting period							2 years
Market value of shares grants per year							$ 5,000
2018 Omnibus Incentive Plan | Restricted Stock | Director
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Market value of shares grants per year						$ 15,000
2018 Omnibus Incentive Plan | Restricted Stock | Board Chair
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Market value of shares grants per year						25,000
2018 Omnibus Incentive Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate of common stock, shares authorized | shares	500,000
Directors Stock Bonus Plan | Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense						$ 173,000	$ 162,000
Number of shares granted | shares						10,714
Directors Stock Bonus Plan | Restricted Stock | Director
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost related to nonvested stock options granted						$ 57,000,000
Number of shares granted | shares			4,736
Estimated fair value per share | $ / shares			$ 30.67
Number of directors | Director			9
Directors Stock Bonus Plan | Maximum | Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting period						2 years
Directors Stock Bonus Plan | Minimum | Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options vesting period						1 year
Percentage of scheduled board meetings attended by directors during prior year						75.00%

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Outstanding, Shares, Beginning balance	749,397
Granted, Shares	0
Exercised, Shares	(50,570)
Forfeited or expired, Shares	(4,308)
Outstanding, Shares, Ending balance	694,519	749,397
Vested or expected to vest, Shares	694,519
Exercisable, Shares	356,945
Outstanding, Weighted Average Exercise Price, Beginning balance	$ 7.75
Granted, Weighted Average Exercise Price
Exercised, Weighted Average Exercise Price	7.11
Forfeited or expired, Weighted Average Exercise price	7.63
Outstanding, Weighted Average Exercise Price, Ending balance	7.79	$ 7.75
Vested or expected to vest, Weighted Average Exercise Price	7.79
Exercisable, Weighted Average Exercise Price	$ 6.65
Outstanding, Weighted Average Remaining Contractual Term	4 years	5 years
Vested or expected to vest, Weighted Average Remaining Contractual Term	4 years
Exercisable, Weighted Average Remaining Contractual Term	2 years 10 months 24 days
Outstanding, Aggregate Intrinsic Value	$ 29,744,000	$ 9,993,000
Exercised, Aggregate Intrinsic Value	1,177,000	$ 253,000
Vested or expected to vest, Aggregate Intrinsic Value	29,744,000
Exercisable, Aggregate Intrinsic Value	$ 15,695,000

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of Nonvested Restricted Stock Units (Details) - Restricted Stock Units (RSUs) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Nonvested shares, Beginning balance	90,249
Granted, Shares	189,258
Forfeited, Shares	(1,312)
Vested, Shares	(8,351)
Nonvested shares, Ending balance	269,844
Nonvested, Weighted-Average Grant Date Fair Value, Beginning balance	$ 17.25
Granted, Weighted-Average Grant Date Fair Value	23.88
Forfeited, Weighted-Average Grant Date Fair Value	19.98
Vested, Weighted-Average Grant Date Fair Value	17.42
Nonvested, Weighted-Average Grant Date Fair Value, Ending balance	$ 21.70
Nonvested, Aggregate Intrinsic Value	$ 7,803	$ 352

Stock-Based Compensation - Su_3

Stock-Based Compensation - Summary of Nonvested Shares (Details) - Restricted Stock - Directors Stock Bonus Plan - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Nonvested shares, Beginning balance	14,377
Granted, Shares	10,714
Forfeited, Shares	0
Vested, Shares	(14,888)
Nonvested shares, Ending balance	10,203
Nonvested, Weighted-Average Grant Date Fair Value, Beginning balance	$ 16.15
Granted, Weighted-Average Grant Date Fair Value	25.22
Forfeited, Weighted-Average Grant Date Fair Value	0
Vested, Weighted-Average Grant Date Fair Value	17.46
Nonvested, Weighted-Average Grant Date Fair Value, Ending balance	$ 23.78
Nonvested, Aggregate Intrinsic Value	$ 274	$ 70

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021USD ($)Employee	Dec. 31, 2020USD ($)
Compensation And Retirement Disclosure [Abstract]
Contribution amount	$ 1,100,000	$ 760,000
Number of former employees covered under deferred compensation plan | Employee	2
Cash surrender value of life insurance	$ 12,300,000	7,100,000
Deferred compensation	744,000	863,000
Compensation expense	56,000	64,000
Payment of accrued employee benefits made during period	$ 175,000	$ 175,000

Regulatory Matters - Additional

Regulatory Matters - Additional Information (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Regulated Operations [Abstract]
Deferred tax regulatory assets	$ 0	$ 0
Common equity Tier 1 capital conservation buffer	2.50%

Regulatory Matters - Summary of

Regulatory Matters - Summary of Company and Banks's Actual and Required Capital Amounts and Ratios (Details) $ in Thousands	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Leverage Capital (to average assets)
Leverage Capital, Actual	$ 204,585	$ 143,532
Leverage Capital, Actual Ratio	0.0807	0.0905
Leverage Capital, Minimum Required for Capital Adequacy Purposes	$ 101,460	$ 63,454
Leverage Capital, Minimum Required for Capital Adequacy Purposes, Ratio	0.0400	0.0400
Leverage Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions	$ 126,826	$ 79,318
Leverage Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions, Ratio	0.0500	0.0500
Common Equity Tier 1 risk-based capital ratio (to risk-weighted assets)
Common Equity Tier 1 risk-based capital ratio, Actual	$ 201,085	$ 140,032
Common Equity Tier 1 risk-based capital ratio, Actual Ratio	0.1106	0.1127
Common Equity Tier 1 risk-based capital ratio, Minimum Required for Capital Adequacy Purposes	$ 81,834	$ 55,935
Common Equity Tier 1 risk-based capital ratio, Minimum Required for Capital Adequacy Purposes, Ratio	0.0450	0.0450
Common Equity Tier 1 risk-based capital ratio, Required to be Well Capitalized Under the Prompt Corrective Action Provisions	$ 118,205	$ 80,795
Common Equity Tier 1 risk-based capital ratio, Required to be Well Capitalized Under the Prompt Corrective Action Provisions, Ratio	0.0650	0.0650
Tier 1 Capital (to risk-weighted assets)
Tier 1 Capital, Actual	$ 204,585	$ 143,532
Tier 1 Capital, Actual Ratio	0.1125	0.1155
Tier 1 Capital, Minimum Required for Capital Adequacy Purposes	$ 109,112	$ 74,580
Tier 1 Capital, Minimum Required for Capital Adequacy Purposes, Ratio	0.0600	0.0600
Tier 1 Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions	$ 145,483	$ 99,440
Tier 1 Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions, Ratio	0.0800	0.0800
Total Capital (to risk-weighted assets)
Capital, Actual	$ 252,405	$ 169,123
Capital, Actual Ratio	0.1388	0.1361
Capital, Minimum Required for Capital Adequacy Purposes	$ 145,483	$ 99,440
Capital, Minimum Required for Capital Adequacy Purposes, Ratio	0.0800	0.0800
Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions	$ 181,854	$ 124,300
Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions, Ratio	0.1000	0.1000
Bank Only
Leverage Capital (to average assets)
Leverage Capital, Actual	$ 201,783	$ 147,262
Leverage Capital, Actual Ratio	0.0796	0.0929
Leverage Capital, Minimum Required for Capital Adequacy Purposes	$ 101,350	$ 63,421
Leverage Capital, Minimum Required for Capital Adequacy Purposes, Ratio	0.0400	0.0400
Leverage Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions	$ 126,687	$ 79,276
Leverage Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions, Ratio	0.0500	0.0500
Common Equity Tier 1 risk-based capital ratio (to risk-weighted assets)
Common Equity Tier 1 risk-based capital ratio, Actual	$ 201,783	$ 147,262
Common Equity Tier 1 risk-based capital ratio, Actual Ratio	0.1112	0.1186
Common Equity Tier 1 risk-based capital ratio, Minimum Required for Capital Adequacy Purposes	$ 81,623	$ 55,879
Common Equity Tier 1 risk-based capital ratio, Minimum Required for Capital Adequacy Purposes, Ratio	0.0450	0.0450
Common Equity Tier 1 risk-based capital ratio, Required to be Well Capitalized Under the Prompt Corrective Action Provisions	$ 117,900	$ 80,713
Common Equity Tier 1 risk-based capital ratio, Required to be Well Capitalized Under the Prompt Corrective Action Provisions, Ratio	0.0650	0.0650
Tier 1 Capital (to risk-weighted assets)
Tier 1 Capital, Actual	$ 201,783	$ 147,262
Tier 1 Capital, Actual Ratio	0.1112	0.1186
Tier 1 Capital, Minimum Required for Capital Adequacy Purposes	$ 108,830	$ 74,505
Tier 1 Capital, Minimum Required for Capital Adequacy Purposes, Ratio	0.0600	0.0600
Tier 1 Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions	$ 145,107	$ 99,340
Tier 1 Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions, Ratio	0.0800	0.0800
Total Capital (to risk-weighted assets)
Capital, Actual	$ 224,545	$ 162,837
Capital, Actual Ratio	0.1238	0.1311
Capital, Minimum Required for Capital Adequacy Purposes	$ 145,107	$ 99,340
Capital, Minimum Required for Capital Adequacy Purposes, Ratio	0.0800	0.0800
Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions	$ 181,384	$ 124,175
Capital, Required to be Well Capitalized Under the Prompt Corrective Action Provisions, Ratio	0.1000	0.1000

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial assets
Other investments	$ 8,478	$ 6,059
Financial liabilities
Paycheck Protection Program Liquidity Facility		153,716
Balance outstanding at end of period: FHLB Advances	24,999	24,999
Carrying Value
Financial assets
Cash and due from banks	14,496	18,965
Interest earning deposits with other banks	798,665	144,152
Investment securities	36,623	23,247
Other investments	8,478	6,059
Loans receivable, net	1,714,103	1,527,876
Accrued interest receivable	8,105	8,616
Financial liabilities
Deposits	2,363,787	1,421,307
Paycheck Protection Program Liquidity Facility		153,716
Balance outstanding at end of period: FHLB Advances	24,999	24,999
Subordinated debt	24,288	9,993
Junior subordinated debentures	3,586	3,584
Accrued interest payable	357	531
Estimated Fair Value
Financial assets
Cash and due from banks	14,496	18,965
Interest earning deposits with other banks	798,665	144,152
Investment securities	36,675	23,356
Other investments	8,478	6,059
Loans receivable, net	1,686,124	1,535,541
Accrued interest receivable	8,105	8,616
Financial liabilities
Deposits	2,363,624	1,421,534
Paycheck Protection Program Liquidity Facility		153,716
Balance outstanding at end of period: FHLB Advances	24,447	24,787
Subordinated debt	21,891	9,913
Junior subordinated debentures	2,771	2,707
Accrued interest payable	357	531
Estimated Fair Value | Level 1
Financial assets
Cash and due from banks	14,496	18,965
Interest earning deposits with other banks	798,665	144,152
Investment securities	34,998	20,028
Estimated Fair Value | Level 2
Financial assets
Investment securities	1,677	3,328
Other investments	6,156	5,209
Accrued interest receivable	8,105	8,616
Financial liabilities
Deposits	2,363,624	1,421,534
Paycheck Protection Program Liquidity Facility		153,716
Balance outstanding at end of period: FHLB Advances	24,447	24,787
Subordinated debt	21,891	9,913
Junior subordinated debentures	2,771	2,707
Accrued interest payable	357	531
Estimated Fair Value | Level 3
Financial assets
Other investments	2,322	850
Loans receivable, net	$ 1,686,124	$ 1,535,541

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	$ 35,327	$ 20,399
Estimated Fair Value | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	35,327	20,399
Estimated Fair Value | Recurring | U.S. Treasury Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	34,998	20,028
Estimated Fair Value | Recurring | U.S. Agency Collateralized Mortgage Obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	70	100
Estimated Fair Value | Recurring | U.S. Agency Residential Mortgage-Backed Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	3	10
Estimated Fair Value | Recurring | Municipals
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	256	261
Estimated Fair Value | Recurring | Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	34,998	20,028
Estimated Fair Value | Recurring | Level 1 | U.S. Treasury Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	34,998	20,028
Estimated Fair Value | Recurring | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	329	371
Estimated Fair Value | Recurring | Level 2 | U.S. Agency Collateralized Mortgage Obligations
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	70	100
Estimated Fair Value | Recurring | Level 2 | U.S. Agency Residential Mortgage-Backed Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	3	10
Estimated Fair Value | Recurring | Level 2 | Municipals
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	$ 256	$ 261

Fair Value Measurements - Sum_3

Fair Value Measurements - Summary of Carrying Value of Equity Securities Without Readily Determinable Fair Values (Details) - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Equity Securities Without Readily Determinable Fair Value [Line Items]
Carrying value, beginning of period	$ 850	$ 500
Addition of equity securities		750
Downward carrying value changes		(400)
Upward carrying value changes	1,472
Carrying value, end of period	$ 2,322	$ 850

Fair Value Measurements - Sum_4

Fair Value Measurements - Summary of Assets and Liabilities Classified as Level 3 and Measured at Fair Value on Nonrecurring Basis (Details) - Level 3	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Valuation Technique	Collateral valuations
Unobservable Inputs	Discount to appraised value
Measurement Input, Discount Rate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Weighted Average Rate	8.00%	9.00%

Fair Value Measurements - Sum_5

Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	$ 2,543	$ 1,562
Impaired Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	221	712
Equity Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	2,322	850
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	2,543	1,562
Level 3 | Impaired Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	221	712
Level 3 | Equity Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total Fair Value	$ 2,322	$ 850

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Summary of Noninterest Income by Revenue Stream (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation Of Revenue [Line Items]
Total noninterest income	$ 28,118	$ 8,182
Reimbursement of expenses	1,004	593
Total reimbursements and guarantees	11,595	593
Increase (decrease) in reimbursement of expenses	411
Increase (decrease) in reimbursements and guarantees	11,002
Program Income
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	5,712	1,772
Increase (decrease) in revenue from contracts with customer	3,940
Interchange Income
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	1,959	1,501
Interchange Income | Program Income
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	701	14
Increase (decrease) in revenue from contracts with customer	687
Merchant Service Fees
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	568	478
Deposit Service Charges - Overdraft Fees
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	316	334
Deposit Service Charges - Other
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	855	778
Loan Referral Fees
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	2,126	1,726
Gain (Loss) on Equity Investment
Disaggregation Of Revenue [Line Items]
Revenue not from contracts with customer	1,469	(400)
Gain on Sale of Branch
Disaggregation Of Revenue [Line Items]
Revenue not from contracts with customer	1,263
Mortgage Broker Fees
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	920	655
Gain on Sale of Loans, Net
Disaggregation Of Revenue [Line Items]
Revenue not from contracts with customer	396	82
Loan Servicing Fees
Disaggregation Of Revenue [Line Items]
Revenue not from contracts with customer	248	140
Earnings on Life Insurance
Disaggregation Of Revenue [Line Items]
Revenue not from contracts with customer	172	200
Lease and Sublease Income
Disaggregation Of Revenue [Line Items]
Revenue not from contracts with customer	126	122
Other Income
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	393	201
Servicing and Other BaaS Fees | Program Income
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	5,011	1,758
Increase (decrease) in revenue from contracts with customer	3,253
Credit Enhancement Recovery | Guarantees
Disaggregation Of Revenue [Line Items]
Revenue not from contracts with customer	9,086
Increase (decrease) in revenue not from contracts with customer	9,086
Fraud Recovery | Guarantees
Disaggregation Of Revenue [Line Items]
Revenue not from contracts with customer	1,505
Increase (decrease) in revenue not from contracts with customer	1,505
BaaS Fees
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customer	17,307	2,365
Revenue not from contracts with customer	17,307	$ 2,365
Increase (decrease) in revenue not from contracts with customer	$ 14,942

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Additional Information (Details) - Loan Referral Fees	12 Months Ended
	Dec. 31, 2021
Minimum
Disaggregation Of Revenue [Line Items]
Interest rate swap agreement extended period	20 years
Maximum
Disaggregation Of Revenue [Line Items]
Interest rate swap agreement extended period	25 years

Earnings Per Common Share - Sch

Earnings Per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Net income	$ 27,005	$ 15,146
Basic weighted average number common shares outstanding	12,022,954	11,920,735
Dilutive effect of share-based compensation	498,472	288,636
Diluted weighted average number common shares outstanding	12,521,426	12,209,371
Basic earnings per share	$ 2.25	$ 1.27
Diluted earnings per share	$ 2.16	$ 1.24
Stock Options and Restricted Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive stock outstanding	176,097	226,878

Segment Reporting - Additional

Segment Reporting - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021Segment
Segment Reporting [Abstract]
Number of operating segments	2
Number of reportable segments	2

Segment Reporting - Summary of

Segment Reporting - Summary of Financial Information of Reportable Segments and Reconciliation to Consolidated Financial Results (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total assets	$ 2,635,517	$ 1,766,122
Total loans receivable	1,742,735	1,547,138
Allowance for loan losses	(28,632)	(19,262)	$ (11,470)
Total deposits	2,363,787	1,421,307
Net interest income	79,437	57,386
PROVISION FOR LOAN LOSSES	9,915	8,308
Total noninterest income	28,118	8,182
Noninterest expense	63,263	38,119
Operating Segments | Community Bank
Segment Reporting Information [Line Items]
Total assets	2,282,514	1,700,121
Total loans receivable	1,396,060	1,481,475
Allowance for loan losses	(20,299)	(19,196)
Total deposits	1,647,529	1,352,620
Net interest income	73,004	56,833
PROVISION FOR LOAN LOSSES	1,275	8,242
Total noninterest income	10,713	5,817
Noninterest expense	51,547	34,563
Operating Segments | CCBX
Segment Reporting Information [Line Items]
Total assets	353,003	66,001
Total loans receivable	346,675	65,663
Allowance for loan losses	(8,333)	(66)
Total deposits	716,258	68,687
Net interest income	6,433	553
PROVISION FOR LOAN LOSSES	8,640	66
Total noninterest income	17,405	2,365
Noninterest expense	$ 11,716	$ 3,556

Segment Reporting - Summary o_2

Segment Reporting - Summary of Financial Information of Reportable Segments and Reconciliation to Consolidated Financial Results (Parenthetical) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Reimbursement of expenses	$ 1,004,000	$ 593,000
Interchange Income
Segment Reporting Information [Line Items]
Noninterest income	1,959,000	1,501,000
CCBX
Segment Reporting Information [Line Items]
Reimbursement of expenses	1,000,000	593,000
CCBX | Credit Enhancement Recovery
Segment Reporting Information [Line Items]
Revenue not from contracts with customer	9,100,000
CCBX | Servicing and Other BaaS Fees
Segment Reporting Information [Line Items]
Noninterest income	5,000,000	1,800,000
CCBX | Fraud Recovery
Segment Reporting Information [Line Items]
Revenue not from contracts with customer	1,500,000
CCBX | Interchange Income
Segment Reporting Information [Line Items]
Noninterest income	700,000	$ 14,000
CCBX | Other
Segment Reporting Information [Line Items]
Noninterest income	$ 98,000

Parent Company Only Condensed_3

Parent Company Only Condensed Financial Information - Summary of Condensed Financial Information of Coastal Financial Corporation on Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Other investments	$ 8,478	$ 6,059
Total loans receivable	1,714,103	1,527,876
Other assets	12,651	2,098
Total assets	2,635,517	1,766,122
LIABILITIES AND SHAREHOLDERS’ EQUITY
Junior subordinated debentures, net of issuances costs	3,586	3,584
Subordinated debt, net of debt issuance costs	24,288	9,993
Other liabilities	10,214	3,589
Total liabilities and shareholders’ equity	2,635,517	1,766,122
Coastal Financial Corporation [Member]
ASSETS
Cash	24,306	5,071
Investment in trust equities	109	109
Investment in subsidiaries	202,258	147,749
Other investments	2,482	850
Total loans receivable	350
Other assets	124	122
Total assets	229,629	153,901
LIABILITIES AND SHAREHOLDERS’ EQUITY
Junior subordinated debentures, net of issuances costs	3,586	3,584
Subordinated debt, net of debt issuance costs	24,288	9,993
Interest and dividends payable	290	100
Other liabilities	243	7
Shareholders' equity	201,222	140,217
Total liabilities and shareholders’ equity	$ 229,629	$ 153,901

Parent Company Only Condensed_4

Parent Company Only Condensed Financial Information - Summary of Condensed Financial Information of Coastal Financial Corporation on Statement of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
INCOME
Unrealized gain (loss) on equity investment	$ 1,469	$ (400)
Total interest income	83,083	63,038
EXPENSE
Interest expense	3,646	5,652
PROVISION FOR INCOME TAXES	7,372	3,995
NET INCOME	27,005	15,146
Coastal Financial Corporation [Member]
INCOME
Interest earned loans receivable	14
Interest bearing other investments	3	3
Unrealized gain (loss) on equity investment	1,469	(400)
Total interest income	1,486	(397)
EXPENSE
Interest expense	795	694
Other expenses	576	350
Total expense	1,371	1,044
Loss before income taxes and undistributed net income of subsidiary	115	(1,441)
Equity in undistributed income of consolidated subsidiaries	26,917	16,299
PROVISION FOR INCOME TAXES	27	(288)
NET INCOME	$ 27,005	$ 15,146

Parent Company Only Condensed_5

Parent Company Only Condensed Financial Information - Summary of Condensed Financial Information of Coastal Financial Corporation on Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 27,005	$ 15,146
Adjustments to reconcile net income to net cash used by operating activities:
Stock-based compensation	1,284	630
Net cash provided by operating activities	29,847	19,330
CASH FLOWS FROM INVESTING ACTIVITIES
Net cash used by investing activities	(894,152)	(666,540)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of stock options	359	202
Proceeds from public offering, net	32,387
Proceeds from subordinated debt	24,263
Repayment of subordinated debt	(10,000)
Net cash provided by financing activities	859,836	622,265
NET INCREASE IN CASH, DUE FROM BANKS AND RESTRICTED CASH	(4,469)	(24,945)
CASH, DUE FROM BANKS AND RESTRICTED CASH, beginning of year	18,965	43,910
CASH, DUE FROM BANKS AND RESTRICTED CASH, end of year	14,496	18,965
Coastal Financial Corporation [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	27,005	15,146
Adjustments to reconcile net income to net cash used by operating activities:
Equity in undistributed income of consolidated subsidiaries	(26,917)	(16,299)
Stock-based compensation	162	68
Impairment on equity investment	(1,469)	400
Decrease (increase) in other assets	5	(70)
Increase in other liabilities	452	13
Net cash provided by operating activities	(762)	(742)
CASH FLOWS FROM INVESTING ACTIVITIES
Investments in subsidiaries	(26,500)	(7,500)
Investments in loans receivable	(350)
Investments in other, net	(163)	(750)
Net cash used by investing activities	(27,013)	(8,250)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of stock options	360	202
Proceeds from public offering, net	32,387
Proceeds from subordinated debt	24,263
Repayment of subordinated debt	(10,000)
Net cash provided by financing activities	47,010	202
NET INCREASE IN CASH, DUE FROM BANKS AND RESTRICTED CASH	19,235	(8,790)
CASH, DUE FROM BANKS AND RESTRICTED CASH, beginning of year	5,071	13,861
CASH, DUE FROM BANKS AND RESTRICTED CASH, end of year	$ 24,306	$ 5,071