California Bancorp (CALB) 10-Q 9 May 24 2024 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2024	May 01, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Period End Date	Mar. 31, 2024
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Document Quarterly Report	true
Document Transition Report	false
Entity Registrant Name	CALIFORNIA BANCORP
Entity Central Index Key	0001752036
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding		8,439,185
Title of 12(b) Security	Common Stock, No Par Value
Trading Symbol	CALB
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	82-1751097
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity File Number	001-39242
Entity Shell Company	false
Entity Address, Address Line One	1300 Clay Street
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Oakland
Entity Address, Country	CA
Entity Address, Postal Zip Code	94612
City Area Code	510
Local Phone Number	457-3737

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
ASSETS:
Cash and due from banks	$ 12,071	$ 27,520
Federal funds sold	191,027	184,834
Total cash and cash equivalents	203,098	212,354
Available for sale, at fair value	31,078	44,560
Held to maturity, at amortized cost, net of allowance for credit losses of $75 and $55 at March 31, 2024 and December 31, 2023, respectively	95,840	100,841
Total investment securities	126,918	145,401
Loans, net of allowance for credit losses of $15,981 and $16,028 at March 31, 2024 and December 31, 2023, respectively	1,506,133	1,544,612
Premises and equipment, net	1,987	2,207
Bank owned life insurance (BOLI)	26,084	25,878
Goodwill and other intangible assets	7,422	7,432
Accrued interest receivable and other assets	50,899	48,021
Total assets	1,922,541	1,985,905
Deposits
Noninterest-bearing	633,489	657,302
Interest-bearing	1,006,027	967,942
Total deposits	1,639,516	1,625,244
Other borrowings	0	75,000
Junior subordinated debt securities	54,326	54,291
Accrued interest payable and other liabilities	28,014	34,909
Total liabilities	1,721,856	1,789,444
Commitments and Contingencies (Note 5)
Shareholders' equity
Preferred stock, no par value; 10,000,000 shares authorized; no shares issued and outstanding at March 31, 2024 and December 31, 2023	0	0
Common stock, no par value; 40,000,000 shares authorized; 8,436,732 and 8,402,482 issued and outstanding at March 31, 2024 and December 31, 2023, respectively	113,566	113,227
Retained earnings	87,982	84,165
Accumulated other comprehensive loss, net of taxes	(863)	(931)
Total shareholders' equity	200,685	196,461
Total liabilities and shareholders' equity	$ 1,922,541	$ 1,985,905

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Held to maturity, at amortized cost	$ 75	$ 55
Allowance for losses	$ 15,981	$ 16,028
Preferred Stock, Par or Stated Value Per Share	$ 0	$ 0
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	8,436,732	8,402,482
Common stock, shares outstanding	8,436,732	8,402,482

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Interest income
Loans	$ 23,574	$ 22,472
Federal funds sold	2,334	1,760
Investment securities	1,474	1,307
Total interest income	27,382	25,539
Interest expense
Deposits	9,096	6,022
Borrowings and subordinated debt	571	760
Total interest expense	9,667	6,782
Net interest income	17,715	18,757
Provision for credit losses	126	358
Net interest income after provision for credit losses	17,589	18,399
Non-interest income
Service charges and other fees	1,379	863
Other	326	244
Total non-interest income	1,705	1,107
Non-interest expense
Salaries and benefits	8,852	7,876
Premises and equipment	1,452	1,180
Merger related expenses	1,024	0
Professional fees	443	450
Data processing	432	608
Other	1,501	1,729
Total non-interest expense	13,704	11,843
Income before provision for income taxes	5,590	7,663
Provision for income taxes	1,773	2,212
Net income	$ 3,817	$ 5,451
Earnings per common share
Basic	$ 0.45	$ 0.65
Diluted	$ 0.45	$ 0.64
Average common shares outstanding	8,413,735	8,339,080
Average common and equivalent shares outstanding	8,566,712	8,492,067

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net Income	$ 3,817	$ 5,451
Other comprehensive income (loss)
Unrealized gains (losses) on securities available for sale, net	87	326
Reclassification adjustment for securities transferred from available for sale to held to maturity in prior year, net	0	(61)
Amortization of unrealized losses on securities transferred from available for sale to held to maturity, net	6	2
Tax effect	(25)	(97)
Total other comprehensive income	68	170
Total comprehensive income	$ 3,885	$ 5,621

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance (in shares) at Dec. 31, 2022		8,332,479
Balance at Dec. 31, 2022	$ 172,254	$ 111,257	$ 62,297	$ (1,300)
Adoption of new accounting standard	334		334
Stock awards issued and related compensation expense, shares		34,560
Stock awards issued and related compensation expense	631	$ 631	0	0
Shares withheld to pay taxes on stock based compensation , shares		(12,139)
Shares withheld to pay taxes on stock based compensation	(285)	$ (285)	0	0
Stock options exercised , shares		478
Stock options exercised	6	$ 6	0	0
Net Income (Loss)	5,451		5,451	0
Other comprehensive income (loss)	170	$ 0	0	170
Balance (in shares) at Mar. 31, 2023		8,355,378
Balance at Mar. 31, 2023	178,561	$ 111,609	68,082	(1,130)
Balance (in shares) at Dec. 31, 2023		8,402,482
Balance at Dec. 31, 2023	196,461	$ 113,227	84,165	(931)
Stock awards issued and related compensation expense, shares		50,428
Stock awards issued and related compensation expense	772	$ 772	0	0
Shares withheld to pay taxes on stock based compensation , shares		(18,361)
Shares withheld to pay taxes on stock based compensation	(433)	$ (433)	0	0
Stock options exercised , shares		5,775
Stock options exercised	79	$ 79	0	0
Shares Withheld to pay exercise price on stock options, shares		(3,592)
Shares withheld to pay exercise price on stock options	(79)	$ (79)
Net Income (Loss)	3,817		3,817	0
Other comprehensive income (loss)	68	$ 0	0	68
Balance (in shares) at Mar. 31, 2024		8,436,732
Balance at Mar. 31, 2024	$ 200,685	$ 113,566	$ 87,982	$ (863)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income	$ 3,817	$ 5,451
Adjustments to reconcile net income to net cash (used for) provided by operating activities:
Provision for credit losses	126	358
Provision for deferred taxes	28	1,987
Depreciation	228	251
Deferred loan (costs) fees, net	(116)	276
Stock based compensation, net	339	346
Increase in cash surrender value of life insurance	(185)	(173)
Discount on retained portion of sold loans, net	(9)	(9)
Net changes in accrued interest receivable and other assets	(2,840)	(7,346)
Net changes in accrued interest payable and other liabilities	(6,694)	1,581
Net cash (used for) provided by operating activities	(5,306)	2,722
Cash flows from investing activities:
Proceeds from principal payments on investment securities	18,509	2,081
Net decrease (increase) in loans	38,303	(23,842)
Capital calls on low income tax credit investments	(5)	(234)
Purchase of premises and equipment	(7)	(26)
Purchase of bank-owned life insurance policies	(22)	(34)
Net cash provided by (used for) investing activities	56,778	(22,055)
Cash flows from financing activities:
Net increase (decrease) in customer deposits	14,272	(74,130)
(Paydown) proceeds from short term and overnight borrowings, net	(75,000)	75,000
Proceeds from exercised stock options, net	0	6
Net cash (used for) provided by financing activities	(60,728)	876
Decrease in cash and cash equivalents	(9,256)	(18,457)
Cash and cash equivalents, beginning of period	212,354	232,382
Cash and cash equivalents, end of period	203,098	213,925
Supplemental disclosure of cash flow information:
Recording of right to use assets and operating lease liabilities	0	6,127
Cash paid during the year for:
Interest	9,743	6,095
Income taxes	$ 10	$ 0

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 3,817	$ 5,451

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Nature of Operations

Nature of Operations	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	1. NATURE OF OPERATIONS Organization California BanCorp (the “Company”), a California corporation headquartered in Oakland, California, is the bank holding company for its wholly-owned subsidiary California Bank of Commerce (the “Bank”), which offers a broad range of commercial banking services to closely held businesses and professionals located throughout Northern California. The Bank has a full-service branch located in Contra Costa County and 4 loan production offices located in Alameda County, Contra Costa County, Sacramento County, and Santa Clara County. Proposed Merger with Southern California Bancorp On January 30, 2024, the Company entered into a merger agreement with Southern California Bancorp (“SCB”), the bank holding company for Bank of Southern California, N.A. (“BSC”). The merger agreement provides that, subject to the receipt of required regulatory and shareholders approvals and the satisfaction of other conditions, the Company will merge with and into SCB and the Bank will merge with and into BSC. As a result of the merger, each outstanding share of California BanCorp common stock will convert into the right to receive 1.590 shares of SCB common stock. Immediately after the merger, the Company expects that the Company’s shareholders will own approximately 43% of the combined company and SCB’s shareholders will own approximately 57% of the combined company. Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q 10-K The results of operations for the three months ended March 31, 2024 are not necessarily indicative of the results of operations that may be expected for any other interim period or for the year ending December 31, 2024. The Company’s accounting and reporting policies conform to GAAP and to general practices within the banking industry. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting periods presented. Actual results may differ from those estimates used in the Consolidated Financial Statements and related notes. Material estimates that are particularly susceptible to significant changes in the near term include estimates relating to: the determination of the allowance for credit losses; certain assets and liabilities carried at fair value; and accounting for income taxes. Reclassifications Certain prior balances in the unaudited consolidated financial statements may have been reclassified to conform to current year presentation. These reclassifications had no effect on prior year net income or shareholders’ equity. Subsequent Events Management has reviewed all events through the date the unaudited consolidated financial statements were filed with the SEC and concluded that no event required any adjustment to the balances presented. Goodwill Goodwill impairment exists when a reporting unit’s carrying value exceeds its fair value, which is determined through a qualitative assessment whether it is more likely than not that the fair value of equity of the reporting unit exceeds the carrying value. The Company completed an interim impairment analysis of goodwill as of March 31, 2024 and determined there was no impairment. Earnings Per Share (“EPS”) Basic earnings per common share represents the amount of earnings for the period available to each share of common stock outstanding during the reporting period. Basic EPS is computed based upon net income divided by the weighted average number of common shares outstanding during the period. In determining the weighted average number of shares outstanding, vested restricted stock units are included. Diluted EPS represents the amount of earnings for the period available to each share of common stock outstanding including common stock that would have been outstanding assuming the issuance of common shares for all dilutive potential common shares outstanding during each reporting period. Diluted EPS is computed based upon net income divided by the weighted average number of common shares outstanding during each period, adjusted for the effect of dilutive potential common shares, such as restricted stock awards and units, calculated using the treasury stock method. Three months ended March 31, (Dollars in thousands, except per share data) 2024 2023 Net income available to common shareholders $ 3,817 $ 5,451 Weighted average basic common shares outstanding 8,413,735 8,339,080 Add: dilutive potential common shares 152,977 152,987 Weighted average diluted common shares outstanding 8,566,712 8,492,067 Basic earnings per share $ 0.45 $ 0.65 Diluted earnings per share $ 0.45 $ 0.64 Recent Accounting Pronouncements In December 2023, the FASB issued ASU No. 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Investment Securities	2. INVESTMENT SECURITIES The following table summarizes the amortized cost and estimated fair value of securities available for sale and held to maturity at March 31, 2024 and December 31, 2023. (Dollars in thousands) Amortized Gross Gross Estimated At March 31, 2024: Mortgage backed securities $ 12,288 $ 22 $ (787 ) $ 11,523 Government agencies 19,941 —  (386 ) 19,555 Total available for sale securities $ 32,229 $ 22 $ (1,173 ) $ 31,078 Mortgage backed securities $ 51,997 $ 76 $ (6,718 ) $ 45,355 Government agencies 3,070 —  (507 ) 2,563 Corporate bonds 40,773 —  (3,978 ) 36,795 Total held to maturity securities, net $ 95,840 $ 76 $ (11,203 ) $ 84,713 At December 31, 2023: Mortgage backed securities $ 15,882 $ 25 $ (758 ) $ 15,149 Government agencies 29,916 —  (505 ) 29,411 Total available for sale securities $ 45,798 $ 25 $ (1,263 ) $ 44,560 Mortgage backed securities $ 56,928 $ —  $ (6,140 ) $ 50,788 Government agencies 3,072 —  (513 ) 2,559 Corporate bonds 40,841 —  (4,158 ) 36,683 Total held to maturity securities, net $ 100,841 $ —  $ (10,811 ) $ 90,030 The Company did not purchase or sell any investment securities during the three months ended March 31, 2024 and 2023. The following table summarizes the scheduled maturities of our available for sale and held to maturity investment securities as of March 31, 2024. Available for Sale Held to Maturity (Dollars in thousands) Amortized Fair Amortized Fair Less that one year $ 18,372 $ 18,100 $ 13,673 $ 13,640 One to five years 4,976 4,846 14,480 14,044 Five to ten years —  —  19,593 16,885 Beyond ten years 1,448 1,328 20,094 16,036 Securities not due at a single maturity date 7,433 6,804 28,000 24,108 Total investment securities $ 32,229 $ 31,078 $ 95,840 $ 84,713 The amortized cost and fair value of debt securities are shown by contractual maturity. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations with or without call or prepayment penalties. As such, certain securities are not included in the specific maturity categories above and instead are shown separately as securities not due at a single maturity date. Management monitors the credit quality of held to maturity investment securities through the use of credit ratings by major credit agencies and analysis of issuer financial information, if available. Additionally, securities issued by government-sponsored agencies, such as FNMA, FHLMC and SBA, have implicit and/or explicit credit guarantees by the United States Federal Government which protect us from credit losses on the contractual cash flows of the securities. The following table reflects the amortized cost and fair value of held to maturity investment securities as of March 31, 2024 and December 31, 2023, aggregated by credit quality indicators. March 31, 2024 December 31, 2023 (Dollars in thousands) Amortized Fair Amortized Fair Aaa $ 11,261 $ 9,179 $ 11,382 $ 9,473 Aa1/Aa2/Aa3 3,069 2,563 3,072 2,559 A1/A2/A3 4,774 3,466 4,770 3,543 Not rated 76,736 69,505 81,617 74,455 Total held to maturity securities $ 95,840 $ 84,713 $ 100,841 $ 90,030 At March 31, 2024, the Company had 51 securities in an unrealized loss position. At December 31, 2023, the Company had 55 securities in an unrealized loss position. The following table summarizes the unrealized losses for those investment securities, at the respective reporting dates, aggregated by major security type and length of time in a continuous unrealized loss position. Less Than 12 Months More Than 12 Months Total (Dollars in thousands) Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized At March 31, 2024: Mortgage backed securities $ —  $ —  $ 9,783 $ (787 ) $ 9,783 $ (787 ) Government agencies —  —  19,555 (386 ) 19,555 (386 ) Total available for sale securities $ —  $ —  $ 29,338 $ (1,173 ) $ 29,338 $ (1,173 ) Mortgage backed securities $ —  $ —  $ 42,113 $ (6,718 ) $ 42,113 $ (6,718 ) Government agencies —  —  2,563 (507 ) 2,563 (507 ) Corporate bonds —  —  36,795 (3,978 ) 36,795 (3,978 ) Total held to maturity securities $ —  $ —  $ 81,472 $ (11,203 ) $ 81,472 $ (11,203 ) At December 31, 2023: Mortgage backed securities $ —  $ —  $ 13,314 $ (758 ) $ 13,314 $ (758 ) Government agencies —  —  29,411 (505 ) 29,411 (505 ) Total available for sale securities $ —  $ —  $ 42,725 $ (1,263 ) $ 42,725 $ (1,263 ) Mortgage backed securities $ —  $ —  $ 50,788 $ (6,140 ) $ 50,788 $ (6,140 ) Government agencies —  —  2,559 (513 ) 2,559 (513 ) Corporate bonds —  —  36,683 (4,158 ) 36,683 (4,158 ) Total held to maturity securities $ —  $ —  $ 90,030 $ (10,811 ) $ 90,030 $ (10,811 ) At March 31, 2024 and December 31, 2023, management determined that it did not intend to sell any available for sale investment securities with unrealized losses, and it was unlikely that the Company would be required to sell any of those securities with unrealized losses before recovery of their amortized cost. No allowances for credit losses were recognized, individually or collectively, on available for sale securities in an unrealized loss position, as management did not believe any of the securities were impaired due to reasons of credit quality at March 31, 2024 and December 31, 2023. The Company measures expected credit losses on held to maturity securities collectively by major security type sharing similar risk characteristics, and considers historical credit loss information that is adjusted for current conditions along with reasonable and supportable forecasts. At March 31, 2024 and December 31, 2023, the Company determined that an allowance for credit losses of $75,000 and $55,000, respectively, was required for held to maturity securities. The allowance for credit losses pertained to corporate bonds and was presented as a reduction to the amortized cost of held to maturity securities outstanding. The following table presents the balance and activity in the allowance for credit losses on held to maturity securities for the three months ended March 31, 2024 and 2023. Three Months Ended March 31, (Dollars in thousands) 2024 2023 Beginning balance $ 55 $ —  Adoption of new accounting standard —  110 Provision for credit losses 20 —  Net charge-offs —  —  Ending balance $ 75 $ 110 On a quarterly basis, the Company utilizes a comprehensive risk assessment which includes an external rating methodology to identify, measure, and monitor risks associated with our held to maturity loan portfolio. The provision for credit losses in the first quarter of 2024 was primarily driven by an increase in the risk of default pertaining to certain securities in the held to maturity portfolio, and was identified as part of the comprehensive quarterly analysis.

Loans and Allowance For Credit

Loans and Allowance For Credit Losses	3 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Loans and Allowance For Credit Losses	3. LOANS AND ALLOWANCE FOR CREDIT LOSSES Outstanding loans as of March 31, 2024 and December 31, 2023 are summarized below. Certain loans have been pledged to secure borrowing arrangements (see Note 4). (Dollars in thousands) March 31, December 31, Commercial and industrial $ 610,459 $ 626,615 Real estate - other 834,143 849,306 Real estate - construction and land 35,886 44,186 SBA 3,919 4,032 Other 36,484 35,394 Total loans, gross 1,520,891 1,559,533 Deferred loan origination costs, net 1,223 1,107 Allowance for credit losses (15,981 ) (16,028 ) Total loans, net $ 1,506,133 $ 1,544,612 The Company categorizes its loan portfolio into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company analyzes loans individually to classify the loans as to credit risk. The Company uses the following definitions for risk ratings: Special Mention: A Special Mention credit has potential weaknesses that require management’s close attention. If left uncorrected, these potential weaknesses may result in the deterioration of the repayment prospects for the asset or in the Company’s credit position at some future date. Special Mention assets are not adversely classified and do not expose the Company to sufficient risk to warrant adverse classification. Substandard: Substandard credits are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified must have a well-defined weakness or weaknesses that jeopardize liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful: A Doubtful credit has all the weaknesses inherent in Substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently known facts, conditions and values, highly questionable and improbable. Loans not meeting the criteria above that are analyzed individually, as part of the above described process, are considered to be pass-rated loans. The following table reflects the Company’s recorded investment in loans by credit quality indicators and by year of origination as of March 31, 2024. Term Loans by Year of Origination (Dollars in thousands) 2024 2023 2022 2021 2020 Prior Revolving Total Commercial and industrial Pass $ 2,575 $ 79,677 $ 131,880 $ 51,887 $ 14,380 $ 58,129 $ 212,976 $ 551,504 Special mention —  117 250 1,815 442 937 22,159 25,720 Substandard —  751 10,173 2,445 57 431 19,378 33,235 Total $ 2,575 $ 80,545 $ 142,303 $ 56,147 $ 14,879 $ 59,497 $ 254,513 $ 610,459 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Real estate - other Pass $ 6,979 $ 41,701 $ 186,703 $ 187,023 $ 83,281 $ 210,914 $ 69,193 $ 785,794 Special mention —  —  4,267 33,165 —  4,137 —  41,569 Substandard —  —  —  1,638 —  5,142 —  6,780 Total $ 6,979 $ 41,701 $ 190,970 $ 221,826 $ 83,281 $ 220,193 $ 69,193 $ 834,143 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Real estate - construction and land Pass $ —  $ 4,786 $ 3,535 $ 8,806 $ —  $ —  $ —  $ 17,127 Special mention —  —  —  14,227 —  —  —  14,227 Substandard —  2,889 —  —  —  1,643 —  4,532 Total $ —  $ 7,675 $ 3,535 $ 23,033 $ —  $ 1,643 $ —  $ 35,886 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  SBA Pass $ —  $ —  $ 734 $ —  $ —  $ 2,243 $ 102 $ 3,079 Special mention —  —  —  —  —  88 —  88 Substandard —  —  —  —  —  752 —  752 Total $ —  $ —  $ 734 $ —  $ —  $ 3,083 $ 102 $ 3,919 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ 309 $ —  $ 309 Other Pass $ 33 $ 28 $ 1,372 $ —  $ 148 $ 32,451 $ 2,452 $ 36,484 Special mention —  —  —  —  —  —  —  —  Substandard —  —  —  —  —  —  —  —  Total $ 33 $ 28 $ 1,372 $ —  $ 148 $ 32,451 $ 2,452 $ 36,484 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ 130 $ —  $ 130 Total Pass $ 9,587 $ 126,192 $ 324,224 $ 247,716 $ 97,809 $ 303,737 $ 284,723 $ 1,393,988 Special mention —  117 4,517 49,207 442 5,162 22,159 81,604 Substandard —  3,640 10,173 4,083 57 7,968 19,378 45,299 Total $ 9,587 $ 129,949 $ 338,914 $ 301,006 $ 98,308 $ 316,867 $ 326,260 $ 1,520,891 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ 439 $ —  $ 439 The following table reflects the Company’s recorded investment in loans by credit quality indicators and by year of origination as of December 31, 2023. Term Loans by Year of Origination (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Total Commercial and industrial Pass $ 86,292 $ 136,525 $ 55,779 $ 15,517 $ 27,484 $ 35,217 $ 206,037 $ 562,851 Special mention 124 3,700 1,940 502 730 336 24,048 31,380 Substandard 751 10,888 1,319 111 443 —  18,872 32,384 Total $ 87,167 $ 151,113 $ 59,038 $ 16,130 $ 28,657 $ 35,553 $ 248,957 $ 626,615 Current period gross charge-offs $ —  $ 136 $ —  $ —  $ —  $ 20 $ 247 $ 403 Real estate - other Pass $ 44,570 $ 181,849 $ 186,142 $ 84,708 $ 58,419 $ 160,252 $ 83,755 $ 799,695 Special mention —  4,293 33,356 —  1,575 3,575 —  42,799 Substandard —  —  1,649 —  587 4,576 —  6,812 Total $ 44,570 $ 186,142 $ 221,147 $ 84,708 $ 60,581 $ 168,403 $ 83,755 $ 849,306 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Real estate - construction and land Pass $ 3,982 $ 10,134 $ 25,544 $ —  $ —  $ —  $ —  $ 39,660 Special mention 2,871 —  —  —  —  —  —  2,871 Substandard —  —  —  —  —  1,655 —  1,655 Total $ 6,853 $ 10,134 $ 25,544 $ —  $ —  $ 1,655 $ —  $ 44,186 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  SBA Pass $ —  $ 747 $ 17 $ —  $ 570 $ 1,721 $ 108 $ 3,163 Special mention —  —  —  —  —  102 —  102 Substandard —  —  —  —  398 369 —  767 Total $ —  $ 747 $ 17 $ —  $ 968 $ 2,192 $ 108 $ 4,032 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Other Pass $ —  $ 1,511 $ —  $ 169 $ —  $ 33,329 $ 385 $ 35,394 Special mention —  —  —  —  —  —  —  —  Substandard —  —  —  —  —  —  —  —  Total $ —  $ 1,511 $ —  $ 169 $ —  $ 33,329 $ 385 $ 35,394 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Total Pass $ 134,844 $ 330,766 $ 267,482 $ 100,394 $ 86,473 $ 230,519 $ 290,285 $ 1,440,763 Special mention 2,995 7,993 35,296 502 2,305 4,013 24,048 77,152 Substandard 751 10,888 2,968 111 1,428 6,600 18,872 41,618 Total $ 138,590 $ 349,647 $ 305,746 $ 101,007 $ 90,206 $ 241,132 $ 333,205 $ 1,559,533 Current period gross charge-offs $ —  $ 136 $ —  $ —  $ —  $ 20 $ 247 $ 403 The following table reflects an aging analysis of the loan portfolio by the time past due at March 31, 2024 and December 31, 2023. (Dollars in thousands) 30 Days 60 Days 90+ Days Nonaccrual Current Total As of March 31, 2024: Commercial and industrial $ 4,933 $ —  $ —  $ 1,159 $ 604,367 $ 610,459 Real estate - other 5,044 —  —  —  829,099 834,143 Real estate - construction and land —  16,793 —  —  19,093 35,886 SBA —  398 —  53 3,468 3,919 Other 241 169 240 —  35,834 36,484 Total loans, gross $ 10,218 $ 17,360 $ 240 $ 1,212 $ 1,491,861 $ 1,520,891 As of December 31, 2023: Commercial and industrial $ —  $ —  $ —  $ 3,728 $ 622,887 $ 626,615 Real estate - other 1,824 —  —  —  847,482 849,306 Real estate - construction and land —  —  —  —  44,186 44,186 SBA —  —  —  53 3,979 4,032 Other —  —  —  —  35,394 35,394 Total loans, gross $ 1,824 $ —  $ —  $ 3,781 $ 1,553,928 $ 1,559,533 The increase in past due loans during the first quarter of 2024 was primarily due to one construction loan that was paid off in full during April 2024. The following table reflects nonaccrual loans by portfolio segment as of March 31, 2024 and December 31, 2023. (Dollars in thousands) Nonaccrual Nonaccrual Total As of March 31, 2024: Commercial and industrial $ 1,159 $ —  $ 1,159 SBA 53 —  53 Total nonaccrual loans $ 1,212 $ —  $ 1,212 As of December 31, 2023: Commercial and industrial $ 3,708 $ 20 $ 3,728 SBA 53 —  53 Total nonaccrual loans $ 3,761 $ 20 $ 3,781 Interest forgone on nonaccrual loans totaled $62,000 and $42,000 for the three months ended March 31, 2024 and 2023, respectively. There was no interest recognized on a cash-basis on loans individually evaluated for expected credit losses/impairment during the three months ended March 31, 2024 and 2023. The Company measures expected credit losses on a pooled basis when similar risk characteristics exist. Loans that do not share risk characteristics are evaluated on an individual basis. The Company designates individually evaluated loans on nonaccrual status as collateral dependent loans, as well as other loans that management designates as having higher risk. Collateral dependent loans are loans for which the repayment is expected to be provided substantially through the operation or sale of the collateral and the borrower is experiencing financial difficulty. These loans do not share common risk characteristics and are not included within the collectively evaluated loans for determining the allowance for credit losses. For collateral dependent loans, the Company has adopted the practical expedient under the ASC 326 to measure the allowance for credit losses based on the fair value of collateral. The allowance for credit losses is calculated on an individual loan basis based on the shortfall between the fair value of the loan’s collateral, which is adjusted for liquidation costs/discounts, and amortized cost. If the fair value of the collateral exceeds the amortized cost, no allowance is required. The following table reflects the Company’s collateral dependent loans by portfolio segment and by type of collateral as of March 31, 2024 and December 31, 2023. (Dollars in thousands) Residential Business Total Collateral As of March 31, 2024: Commercial and industrial $ —  $ 8,785 $ 8,785 SBA 451 —  451 Total collateral dependent loans $ 451 $ 8,785 $ 9,236 As of December 31, 2023: Commercial and industrial $ —  $ 3,728 $ 3,728 SBA 53 —  53 Total collateral dependent loans $ 53 $ 3,728 $ 3,781 The following table reflects the changes in, and allocation of, the allowance for credit losses and allowance for loan losses by portfolio segment for the three months ended March 31, 2024 and 2023. (Dollars in thousands) Commercial Real Estate Real Estate SBA Other Total Three months ended March 31, 2024: Beginning balance $ 10,853 $ 3,218 $ 492 $ 521 $ 944 $ 16,028 Provision for credit losses 231 (120 ) 50 (7 ) 147 301 Charge-offs —  —  —  (309 ) (130 ) (439 ) Recoveries 91 —  —  —  —  91 Ending balance $ 11,175 $ 3,098 $ 542 $ 205 $ 961 $ 15,981 Allowance for credit losses / gross loans 1.83 % 0.37 % 1.51 % 5.23 % 2.63 % 1.05 % Net recoveries (charge-offs) / gross loans 0.01 % 0.00 % 0.00 % -7.88 % -0.36 % -0.02 % Three months ended March 31, 2023: Beginning balance $ 10,620 $ 5,322 $ 884 $ 132 $ 47 $ 17,005 Adoption of new accounting standard (1,566 ) (1,725 ) 1 (91 ) 1,541 (1,840 ) Provision for credit losses 1,912 (654 ) (142 ) 1 (653 ) 464 Charge-offs (247 ) —  —  —  —  (247 ) Recoveries —  —  —  —  —  —  Ending balance $ 10,719 $ 2,943 $ 743 $ 42 $ 935 $ 15,382 Allowance for loan losses / gross loans 1.63 % 0.34 % 1.16 % 0.75 % 2.48 % 0.95 % Net recoveries (charge-offs) / gross loans -0.04 % 0.00 % 0.00 % 0.00 % 0.00 % -0.02 % Modifications Made to Borrowers Experiencing Financial Difficulty The allowance for credit losses incorporates an estimate of lifetime expected credit losses and is recorded on each asset upon asset origination or acquisition. The starting point for the estimate of the allowance for credit losses is historical loss information, which includes losses from modifications of receivables to borrowers experiencing financial difficulty. The Company uses a probability of default/loss given default model to determine the allowance for credit losses. An assessment of whether a borrower is experiencing financial difficulty is made on the date of a modification. The effect of most modifications made to borrowers experiencing financial difficulty is already included in the allowance for credit losses because of the measurement methodologies used to estimate the allowance, therefore a change to the allowance for credit losses is generally not recorded upon modification. In some cases, the Company will modify a certain loan by providing multiple types of concessions. Typically, one type of concession, such as a term extension, is granted initially. If the borrower continues to experience financial difficulty, another concession, such as an interest rate reduction or principal forgiveness, may be granted. Upon the Company’s determination that a modified loan (or a portion of a loan) has subsequently been deemed uncollectible, the loan (or a portion of that loan) is written off. Therefore, the amortized cost basis of the loan is reduced by the uncollectible amount and the allowance for credit losses is adjusted by the same amount. During the three months ended March 31, 2024, the Company had two loans with a recorded investment or commitment with terms that had been modified due to the borrower experiencing financial difficulties. These loans had no payments that were considered past due as of the reporting date. During the three months ended March 31, 2023, the Company had no loans with a recorded investment or commitment with terms that had been modified due to the borrower experiencing financial difficulties. The following table reflects the type of concession granted and the financial effect of the modifications for the three months ended March 31, 2024. (Dollars in thousands) Amortized % of Total Financial Effect Commercial and industrial $ 11,065 1.81 % Term Extension - maturity date March 15, 2024 December 15, 2024 Commercial and industrial 3,641 0.60 % Term Extension - maturity date extended from January 31, 2024 April 30, 2024 Total modified loans $ 14,706 The Company had no loan modifications resulting from a borrower experiencing financial difficulties with a subsequent payment default within twelve months following the modification during the three months ended March 31, 2024.

Borrowing Arrangements

Borrowing Arrangements	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Borrowing Arrangements	4. BORROWING ARRANGEMENTS The Company has a borrowing arrangement with the Federal Reserve Bank of San Francisco (FRB) under which advances are secured by portions of the Bank’s loan and investment securities portfolios. The Company’s credit limit varies according to the amount and composition of the assets pledged as collateral. At March 31, 2024, amounts pledged and available borrowing capacity under such limits were approximately $410.5 million and $334.3 million, respectively. At December 31, 2023, amounts pledged and available borrowing capacity under such limits were approximately $432.5 million and $343.3 million, respectively. The Company has a borrowing arrangement with the Federal Home Loan Bank of San Francisco (FHLB) under which advances are secured by portions of the Bank’s loan portfolio. The Company’s credit limit varies according to its total assets and the amount and composition of the loan portfolio pledged as collateral. At March 31, 2024, amounts pledged and available borrowing capacity under such limits were approximately $397.0 million and $351.5 million, respectively. At December 31, 2023, amounts pledged and available borrowing capacity under such limits were approximately $401.4 million and $280.9 million, respectively. On December 29, 2023, the Company secured a FHLB short-term borrowing for $75.0 million at a fixed rate of 5.70%. This borrowing was repaid in full on January 2, 2024. Under Federal Funds line of credit agreements with several correspondent banks, the Company can borrow up to $123.0 million. There were no borrowings outstanding under these arrangements at March 31, 2024 and December 31, 2023. The Company maintains a revolving line of credit with a commitment of $3.0 million for a one-year The Company issued $20.0 million in subordinated debt on September 30, 2020. The subordinated debt has a fixed interest rate of 5.00% for the first 5 years and a stated maturity of September 30, 2030. After the fifth year, the interest rate changes to a quarterly variable rate equal to then current three-month term Secured Overnight Financing Rate (“SOFR”) plus 0.488%. The subordinated debt was recorded net of related issuance costs of $300,000. At March 31, 2024 and December 31, 2023, the balance remained at $20.0 million, net of the remaining unamortized issuance cost. The Company issued an additional $35.0 million in subordinated debt on August 17, 2021. The subordinated debt has a fixed interest rate of 3.50% for the first 5 years and a stated maturity of September 1, 2031. After the fifth year, the interest rate changes to a quarterly variable rate equal to then current three-month term SOFR plus 0.286%. The subordinated debt was recorded net of related issuance costs of $760,000. At March 31, 2024 and December 31, 2023, the balance remained at $35.0 million, net of the remaining unamortized issuance cost.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	3 Months Ended
	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	5. COMMITMENTS AND CONTINGENT LIABILITIES Financial Instruments with Off-Balance The Company is a party to financial instruments with off-balance Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case At March 31, 2024 and December 31, 2023, the Company had outstanding unfunded commitments for loans of approximately $612.6 million and $676.1 million, respectively. The outstanding unfunded commitments for loans at March 31, 2024 was comprised of fixed rate commitments of approximately $31.2 million and variable rate commitments of approximately $581.4 million. The following table reflects the interest rate and maturity ranges for the unfunded fixed rate loan commitments as of March 31, 2024. (Dollars in thousands) Due in Over One Year Over Total Unfunded fixed rate loan commitments: Interest rate less than or equal to 4.00% $ 17,140 $ 2,929 $ 106 $ 20,175 Interest rate between 4.00% and 5.00% 450 3,491 219 4,160 Interest rate greater than or equal to 5.00% 2,270 2,667 1,967 6,904 Total unfunded fixed rate loan commitments $ 19,860 $ 9,087 $ 2,292 $ 31,239 The Company records an allowance for credit losses on off-balance off-balance The following table presents the balance and activity in the allowance for credit losses for unfunded loan commitments for the three months ended March 31, 2024 and 2023. Three Months Ended March 31, (Dollars in thousands) 2024 2023 Beginning balance $ 2,166 $ 430 Adoption of new accounting standard —  1,397 Provision for credit losses (195 ) (106 ) Ending balance $ 1,971 $ 1,721 Operating Leases The Company leases various office premises under long-term operating lease agreements. These leases expire between 2026 and 2030, with certain leases containing either three, five, or seven-year renewal options. The following table reflects the quantitative information for the Company’s leases for the three months ended, and as of, March 31, 2024. (Dollars in thousands) March 31, Operating lease cost (cost resulting from lease payments) $ 590 Operating lease - operating cash flows (fixed payments) $ 598 Operating lease right-of-use $ 8,557 Operating lease liabilities (other liabilities) $ 10,265 Weighted average lease term - operating leases 5.1 years Weighted average discount rate - operating leases 3.39 % The following table reflects the minimum commitments under these non-cancellable (Dollars in thousands) March 31, 2024 $ 1,814 2025 2,486 2026 2,451 2027 1,402 2028 1,078 Thereafter 2,063 Total undiscounted cash flows 11,294 Discount on cash flows (1,029 ) Total lease $ 10,265 Rent expense included in premises and equipment expense totaled $590,000 and $488,000 for the three months ended March 31, 2024 and 2023, respectively. Contingencies The Company is involved in legal proceedings arising from normal business activities. Management, based upon the advice of legal counsel, believes the ultimate resolution of all pending legal actions will not have a material effect on the Company’s financial position or results of operations. Correspondent Banking Agreements The Company maintains funds on deposit with other federally insured financial institutions under correspondent banking agreements. Insured financial institution deposits up to $250,000 are fully insured by the FDIC under the FDIC’s general deposit insurance rules. At March 31, 2024, uninsured deposits at financial institutions were approximately $2.5 million. At December 31, 2023, uninsured deposits at financial institutions were approximately $3.0 million.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	6. FAIR VALUE MEASUREMENTS Fair Value Hierarchy The Company groups its assets and liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. Valuations within these levels are based upon: Level 1 - Quoted market prices for identical instruments traded in active exchange markets. Level 2 - Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable or can be corroborated by observable market data. Level 3 - Model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect the Company’s estimates of assumptions that market participants would use on pricing the asset or liability. Valuation techniques include management judgment and estimation which may be significant. Management monitors the availability of observable market data to assess the appropriate classification of financial instruments within the fair value hierarchy. Changes in economic conditions or model-based valuation techniques may require the transfer of financial instruments from one fair value level to another. In such instances, the transfer is reported at the beginning of the reporting period. Management evaluates the significance of transfers between levels based upon the nature of the financial instrument and size of the transfer relative to total assets, total liabilities or total earnings. The carrying amounts and estimated fair values of financial instruments at March 31, 2024 and December 31, 2023 are as follows: Carrying Fair Value Measurements (Dollars in thousands) Level 1 Level 2 Level 3 Total As of March 31, 2024: Financial assets: Cash and cash equivalents $ 203,098 $ 203,098 $ —  $ —  $ 203,098 Investment securities: Available for sale 31,078 —  31,078 —  31,078 Held to maturity 95,840 77,361 7,352 84,713 Loans, net 1,506,133 —  —  1,438,856 1,438,856 Accrued interest receivable 10,120 —  1,018 9,102 10,120 Financial liabilities: Deposits $ 1,639,516 $ 1,311,636 $ 328,188 $ —  $ 1,639,824 Subordinated debt 54,326 —  —  50,196 50,196 Accrued interest payable 3,216 —  3,114 102 3,216 As of December 31, 2023: Financial assets: Cash and due from banks $ 212,354 $ 212,354 $ —  $ —  $ 212,354 Investment securities: Available for sale 44,560 —  44,560 —  44,560 Held to maturity 100,841 82,806 7,224 90,030 Loans, net 1,544,612 —  1,470,794 1,470,794 Accrued interest receivable 8,847 —  982 7,865 8,847 Financial liabilities: Deposits $ 1,625,244 $ 1,315,032 $ 311,213 $ —  $ 1,626,245 Other borrowings 75,000 —  —  75,000 75,000 Subordinated debt 54,291 —  —  50,248 50,248 Accrued interest payable 3,292 —  2,593 699 3,292 These estimates do not reflect any premium or discount that could result from offering the Company’s entire holdings of a particular financial instrument for sale at one time, nor do they attempt to estimate the value of anticipated future business related to the instruments. In addition, the tax ramifications related to the realization of unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in any of these estimates. The methods and assumptions used to estimate fair values are described as follows: Cash and Due from banks—The carrying amounts of cash and short-term instruments approximate fair values and are classified as Level 1. Investment Securities—Since quoted prices are generally not available for identical securities, fair values are calculated based on market prices of similar securities on similar dates, resulting in Level 2 classification. For securities where market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators, resulting in Level 3 classification. FHLB, IBFC, PCBB Stock—It is not practical to determine the fair value of these correspondent bank stocks due to restrictions placed on their transferability. Loans—Fair values of loans for March 31, 2024 and December 31, 2023 are estimated on an exit price basis with contractual cash flow, prepayments, discount spreads, credit loss and liquidity premium assumptions. Loans with similar characteristics such as prepayment rates, terms and rate indexed are aggregated for purposes of the calculations. Loans are generally classified using Level 3 inputs. Loans individually evaluated for expected credit losses/impairment—Certain loans are individually evaluated on a quarterly basis for additional expected credit losses/impairment and adjusted accordingly. The fair value of loans that are individually evaluated with specific allocations of the allowance for credit losses that are secured by real property is generally based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. The methods utilized to estimate the fair value of individually evaluated loans do not necessarily represent an exit price. Deposits—The fair values disclosed for demand deposits (e.g., interest and non-interest FHLB Advances—FHLB Advances are included in Other Borrowings. Fair values for FHLB Advances are estimated using discounted cash flow analyses using interest rates offered at each reporting date by correspondent banks for advances with similar maturities resulting in Level 3 classification. Senior Notes—Fair values for senior notes are estimated using a discounted cash flow calculation based on current rates for similar types of debt, which may be unobservable, and by considering recent trading activity of similar instruments in the market, which may be inactive. Accordingly, senior notes are classified within the Level 3 classification. Junior Subordinated Debt Securities—Fair values for subordinated debt are calculated based on their respective terms and discounted to the date of the valuation. A market rate based on recent debt offerings by peer banks, which may be unobservable, is used to discount the cash flows until the repricing date and the subsequent cash flows are discounted at Prime plus 2%. Additionally, the Company considers recent trading activity of similar instruments in the market, which may be inactive. Accordingly, junior subordinated debt securities are classified within the Level 3 classification. Accrued Interest Receivable—The carrying amounts of accrued interest receivable approximate fair value resulting in a Level 2 classification for accrued interest receivable on investment securities and a Level 3 classification for accrued interest receivable on loans since investment securities are generally classified using Level 2 inputs and loans are generally classified using Level 3 inputs. Accrued Interest Payable—The carrying amounts of accrued interest payable approximate fair value resulting in a Level 2 classification, since accrued interest payable is from deposits that are generally classified using Level 2 inputs. Off Balance Sheet Instruments—Fair values for off-balance Assets Recorded at Fair Value on a Recurring Basis The Company is required or permitted to record the following assets at fair value on a recurring basis as of March 31, 2024 and December 31, 2023. (Dollars in thousands) Fair Value Level 1 Level 2 Level 3 As of March 31, 2024: Investments available for sale: Mortgage backed securities $ 11,523 $ —  $ 11,523 $ —  Government agencies 19,555 —  19,555 —  Total assets measured at fair value on a recurring basis $ 31,078 $ —  $ 31,078 $ —  As of December 31, 2023: Investments available for sale: Mortgage backed securities $ 15,149 $ —  $ 15,149 $ —  Government agencies 29,411 —  29,411 —  Total assets measured at fair value on a recurring basis $ 44,560 $ —  $ 44,560 $ —  Fair values for available-for-sale Assets Recorded at Fair Value on a Non-Recurring The Company may be required, from time to time, to measure certain assets at fair value on a non-recurring non-recurring Carrying Fair Value Measurements (Dollars in thousands) Level 1 Level 2 Level 3 As of March 31, 2024: Individually evaluated loans - Commercial $ 1,159 $ —  $ —  $ 1,159 Individually evaluated loans - SBA 53 —  —  53 Total assets measured at fair value on a non-recurring $ 1,212 $ —  $ —  $ 1,452 As of December 31, 2023: Impaired loans - Commercial $ 3,728 $ —  $ —  $ 3,728 Impaired loans - SBA 53 —  —  53 Total assets measured at fair value on a non-recurring $ 3,781 $ —  $ —  $ 3,781 The fair value of individually evaluated loans is based upon independent market prices, estimated liquidation values of loan collateral or appraised value of the collateral as determined by third-party independent appraisers, less selling costs. Level 3 fair value measurement includes other real estate owned that has been measured at fair value upon transfer to foreclosed assets and loans collateralized by real property and other business asset collateral where a specific reserve has been established or a charge-off

Nature Of Operations (Policies)

Nature Of Operations (Policies)	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Organization	Organization California BanCorp (the “Company”), a California corporation headquartered in Oakland, California, is the bank holding company for its wholly-owned subsidiary California Bank of Commerce (the “Bank”), which offers a broad range of commercial banking services to closely held businesses and professionals located throughout Northern California. The Bank has a full-service branch located in Contra Costa County and 4 loan production offices located in Alameda County, Contra Costa County, Sacramento County, and Santa Clara County.
Proposed Merger with Southern California Bancorp	Proposed Merger with Southern California Bancorp On January 30, 2024, the Company entered into a merger agreement with Southern California Bancorp (“SCB”), the bank holding company for Bank of Southern California, N.A. (“BSC”). The merger agreement provides that, subject to the receipt of required regulatory and shareholders approvals and the satisfaction of other conditions, the Company will merge with and into SCB and the Bank will merge with and into BSC. As a result of the merger, each outstanding share of California BanCorp common stock will convert into the right to receive 1.590 shares of SCB common stock. Immediately after the merger, the Company expects that the Company’s shareholders will own approximately 43% of the combined company and SCB’s shareholders will own approximately 57% of the combined company.
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q 10-K The results of operations for the three months ended March 31, 2024 are not necessarily indicative of the results of operations that may be expected for any other interim period or for the year ending December 31, 2024. The Company’s accounting and reporting policies conform to GAAP and to general practices within the banking industry.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting periods presented. Actual results may differ from those estimates used in the Consolidated Financial Statements and related notes. Material estimates that are particularly susceptible to significant changes in the near term include estimates relating to: the determination of the allowance for credit losses; certain assets and liabilities carried at fair value; and accounting for income taxes.
Reclassifications	Reclassifications Certain prior balances in the unaudited consolidated financial statements may have been reclassified to conform to current year presentation. These reclassifications had no effect on prior year net income or shareholders’ equity.
Subsequent Events	Subsequent Events Management has reviewed all events through the date the unaudited consolidated financial statements were filed with the SEC and concluded that no event required any adjustment to the balances presented.
Goodwill	Goodwill Goodwill impairment exists when a reporting unit’s carrying value exceeds its fair value, which is determined through a qualitative assessment whether it is more likely than not that the fair value of equity of the reporting unit exceeds the carrying value. The Company completed an interim impairment analysis of goodwill as of March 31, 2024 and determined there was no impairment.
Earnings Per Share ("EPS")	Earnings Per Share (“EPS”) Basic earnings per common share represents the amount of earnings for the period available to each share of common stock outstanding during the reporting period. Basic EPS is computed based upon net income divided by the weighted average number of common shares outstanding during the period. In determining the weighted average number of shares outstanding, vested restricted stock units are included. Diluted EPS represents the amount of earnings for the period available to each share of common stock outstanding including common stock that would have been outstanding assuming the issuance of common shares for all dilutive potential common shares outstanding during each reporting period. Diluted EPS is computed based upon net income divided by the weighted average number of common shares outstanding during each period, adjusted for the effect of dilutive potential common shares, such as restricted stock awards and units, calculated using the treasury stock method. Three months ended March 31, (Dollars in thousands, except per share data) 2024 2023 Net income available to common shareholders $ 3,817 $ 5,451 Weighted average basic common shares outstanding 8,413,735 8,339,080 Add: dilutive potential common shares 152,977 152,987 Weighted average diluted common shares outstanding 8,566,712 8,492,067 Basic earnings per share $ 0.45 $ 0.65 Diluted earnings per share $ 0.45 $ 0.64
Recent Accounting Pronouncements	Recent Accounting Pronouncements In December 2023, the FASB issued ASU No. 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures

Nature of Operations (Tables)

Nature of Operations (Tables)	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Earnings Per Share, Basic and Diluted	Three months ended March 31, (Dollars in thousands, except per share data) 2024 2023 Net income available to common shareholders $ 3,817 $ 5,451 Weighted average basic common shares outstanding 8,413,735 8,339,080 Add: dilutive potential common shares 152,977 152,987 Weighted average diluted common shares outstanding 8,566,712 8,492,067 Basic earnings per share $ 0.45 $ 0.65 Diluted earnings per share $ 0.45 $ 0.64

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Debt Securities, Available-for-sale	The following table summarizes the amortized cost and estimated fair value of securities available for sale and held to maturity at March 31, 2024 and December 31, 2023. (Dollars in thousands) Amortized Gross Gross Estimated At March 31, 2024: Mortgage backed securities $ 12,288 $ 22 $ (787 ) $ 11,523 Government agencies 19,941 —  (386 ) 19,555 Total available for sale securities $ 32,229 $ 22 $ (1,173 ) $ 31,078 Mortgage backed securities $ 51,997 $ 76 $ (6,718 ) $ 45,355 Government agencies 3,070 —  (507 ) 2,563 Corporate bonds 40,773 —  (3,978 ) 36,795 Total held to maturity securities, net $ 95,840 $ 76 $ (11,203 ) $ 84,713 At December 31, 2023: Mortgage backed securities $ 15,882 $ 25 $ (758 ) $ 15,149 Government agencies 29,916 —  (505 ) 29,411 Total available for sale securities $ 45,798 $ 25 $ (1,263 ) $ 44,560 Mortgage backed securities $ 56,928 $ —  $ (6,140 ) $ 50,788 Government agencies 3,072 —  (513 ) 2,559 Corporate bonds 40,841 —  (4,158 ) 36,683 Total held to maturity securities, net $ 100,841 $ —  $ (10,811 ) $ 90,030
Summary of maturities available for sale investment securities	The following table summarizes the scheduled maturities of our available for sale and held to maturity investment securities as of March 31, 2024. Available for Sale Held to Maturity (Dollars in thousands) Amortized Fair Amortized Fair Less that one year $ 18,372 $ 18,100 $ 13,673 $ 13,640 One to five years 4,976 4,846 14,480 14,044 Five to ten years —  —  19,593 16,885 Beyond ten years 1,448 1,328 20,094 16,036 Securities not due at a single maturity date 7,433 6,804 28,000 24,108 Total investment securities $ 32,229 $ 31,078 $ 95,840 $ 84,713
Summary of Amortized Cost And Fair value Of Available For sale And Held To Maturity Securities	March 31, 2024 December 31, 2023 (Dollars in thousands) Amortized Fair Amortized Fair Aaa $ 11,261 $ 9,179 $ 11,382 $ 9,473 Aa1/Aa2/Aa3 3,069 2,563 3,072 2,559 A1/A2/A3 4,774 3,466 4,770 3,543 Not rated 76,736 69,505 81,617 74,455 Total held to maturity securities $ 95,840 $ 84,713 $ 100,841 $ 90,030
Summary of available for sale securities and held to maturity securities continuous unrealized loss position fair value	At March 31, 2024, the Company had 51 securities in an unrealized loss position. At December 31, 2023, the Company had 55 securities in an unrealized loss position. The following table summarizes the unrealized losses for those investment securities, at the respective reporting dates, aggregated by major security type and length of time in a continuous unrealized loss position. Less Than 12 Months More Than 12 Months Total (Dollars in thousands) Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized At March 31, 2024: Mortgage backed securities $ —  $ —  $ 9,783 $ (787 ) $ 9,783 $ (787 ) Government agencies —  —  19,555 (386 ) 19,555 (386 ) Total available for sale securities $ —  $ —  $ 29,338 $ (1,173 ) $ 29,338 $ (1,173 ) Mortgage backed securities $ —  $ —  $ 42,113 $ (6,718 ) $ 42,113 $ (6,718 ) Government agencies —  —  2,563 (507 ) 2,563 (507 ) Corporate bonds —  —  36,795 (3,978 ) 36,795 (3,978 ) Total held to maturity securities $ —  $ —  $ 81,472 $ (11,203 ) $ 81,472 $ (11,203 ) At December 31, 2023: Mortgage backed securities $ —  $ —  $ 13,314 $ (758 ) $ 13,314 $ (758 ) Government agencies —  —  29,411 (505 ) 29,411 (505 ) Total available for sale securities $ —  $ —  $ 42,725 $ (1,263 ) $ 42,725 $ (1,263 ) Mortgage backed securities $ —  $ —  $ 50,788 $ (6,140 ) $ 50,788 $ (6,140 ) Government agencies —  —  2,559 (513 ) 2,559 (513 ) Corporate bonds —  —  36,683 (4,158 ) 36,683 (4,158 ) Total held to maturity securities $ —  $ —  $ 90,030 $ (10,811 ) $ 90,030 $ (10,811 )
Summary of Allowance For Credit Losses On held To Maturity Securities	The following table presents the balance and activity in the allowance for credit losses on held to maturity securities for the three months ended March 31, 2024 and 2023. Three Months Ended March 31, (Dollars in thousands) 2024 2023 Beginning balance $ 55 $ —  Adoption of new accounting standard —  110 Provision for credit losses 20 —  Net charge-offs —  —  Ending balance $ 75 $ 110

Loans and Allowance For Credi_2

Loans and Allowance For Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2024
Loans and Leases Receivable Disclosure [Line Items]
Summary of Outstanding Loans	Outstanding loans as of March 31, 2024 and December 31, 2023 are summarized below. Certain loans have been pledged to secure borrowing arrangements (see Note 4). (Dollars in thousands) March 31, December 31, Commercial and industrial $ 610,459 $ 626,615 Real estate - other 834,143 849,306 Real estate - construction and land 35,886 44,186 SBA 3,919 4,032 Other 36,484 35,394 Total loans, gross 1,520,891 1,559,533 Deferred loan origination costs, net 1,223 1,107 Allowance for credit losses (15,981 ) (16,028 ) Total loans, net $ 1,506,133 $ 1,544,612
Summary of Investment in Loans by Credit Quality Indicators	The following table reflects the Company’s recorded investment in loans by credit quality indicators and by year of origination as of March 31, 2024. Term Loans by Year of Origination (Dollars in thousands) 2024 2023 2022 2021 2020 Prior Revolving Total Commercial and industrial Pass $ 2,575 $ 79,677 $ 131,880 $ 51,887 $ 14,380 $ 58,129 $ 212,976 $ 551,504 Special mention —  117 250 1,815 442 937 22,159 25,720 Substandard —  751 10,173 2,445 57 431 19,378 33,235 Total $ 2,575 $ 80,545 $ 142,303 $ 56,147 $ 14,879 $ 59,497 $ 254,513 $ 610,459 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Real estate - other Pass $ 6,979 $ 41,701 $ 186,703 $ 187,023 $ 83,281 $ 210,914 $ 69,193 $ 785,794 Special mention —  —  4,267 33,165 —  4,137 —  41,569 Substandard —  —  —  1,638 —  5,142 —  6,780 Total $ 6,979 $ 41,701 $ 190,970 $ 221,826 $ 83,281 $ 220,193 $ 69,193 $ 834,143 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Real estate - construction and land Pass $ —  $ 4,786 $ 3,535 $ 8,806 $ —  $ —  $ —  $ 17,127 Special mention —  —  —  14,227 —  —  —  14,227 Substandard —  2,889 —  —  —  1,643 —  4,532 Total $ —  $ 7,675 $ 3,535 $ 23,033 $ —  $ 1,643 $ —  $ 35,886 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  SBA Pass $ —  $ —  $ 734 $ —  $ —  $ 2,243 $ 102 $ 3,079 Special mention —  —  —  —  —  88 —  88 Substandard —  —  —  —  —  752 —  752 Total $ —  $ —  $ 734 $ —  $ —  $ 3,083 $ 102 $ 3,919 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ 309 $ —  $ 309 Other Pass $ 33 $ 28 $ 1,372 $ —  $ 148 $ 32,451 $ 2,452 $ 36,484 Special mention —  —  —  —  —  —  —  —  Substandard —  —  —  —  —  —  —  —  Total $ 33 $ 28 $ 1,372 $ —  $ 148 $ 32,451 $ 2,452 $ 36,484 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ 130 $ —  $ 130 Total Pass $ 9,587 $ 126,192 $ 324,224 $ 247,716 $ 97,809 $ 303,737 $ 284,723 $ 1,393,988 Special mention —  117 4,517 49,207 442 5,162 22,159 81,604 Substandard —  3,640 10,173 4,083 57 7,968 19,378 45,299 Total $ 9,587 $ 129,949 $ 338,914 $ 301,006 $ 98,308 $ 316,867 $ 326,260 $ 1,520,891 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ 439 $ —  $ 439 The following table reflects the Company’s recorded investment in loans by credit quality indicators and by year of origination as of December 31, 2023. Term Loans by Year of Origination (Dollars in thousands) 2023 2022 2021 2020 2019 Prior Revolving Total Commercial and industrial Pass $ 86,292 $ 136,525 $ 55,779 $ 15,517 $ 27,484 $ 35,217 $ 206,037 $ 562,851 Special mention 124 3,700 1,940 502 730 336 24,048 31,380 Substandard 751 10,888 1,319 111 443 —  18,872 32,384 Total $ 87,167 $ 151,113 $ 59,038 $ 16,130 $ 28,657 $ 35,553 $ 248,957 $ 626,615 Current period gross charge-offs $ —  $ 136 $ —  $ —  $ —  $ 20 $ 247 $ 403 Real estate - other Pass $ 44,570 $ 181,849 $ 186,142 $ 84,708 $ 58,419 $ 160,252 $ 83,755 $ 799,695 Special mention —  4,293 33,356 —  1,575 3,575 —  42,799 Substandard —  —  1,649 —  587 4,576 —  6,812 Total $ 44,570 $ 186,142 $ 221,147 $ 84,708 $ 60,581 $ 168,403 $ 83,755 $ 849,306 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Real estate - construction and land Pass $ 3,982 $ 10,134 $ 25,544 $ —  $ —  $ —  $ —  $ 39,660 Special mention 2,871 —  —  —  —  —  —  2,871 Substandard —  —  —  —  —  1,655 —  1,655 Total $ 6,853 $ 10,134 $ 25,544 $ —  $ —  $ 1,655 $ —  $ 44,186 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  SBA Pass $ —  $ 747 $ 17 $ —  $ 570 $ 1,721 $ 108 $ 3,163 Special mention —  —  —  —  —  102 —  102 Substandard —  —  —  —  398 369 —  767 Total $ —  $ 747 $ 17 $ —  $ 968 $ 2,192 $ 108 $ 4,032 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Other Pass $ —  $ 1,511 $ —  $ 169 $ —  $ 33,329 $ 385 $ 35,394 Special mention —  —  —  —  —  —  —  —  Substandard —  —  —  —  —  —  —  —  Total $ —  $ 1,511 $ —  $ 169 $ —  $ 33,329 $ 385 $ 35,394 Current period gross charge-offs $ —  $ —  $ —  $ —  $ —  $ —  $ —  $ —  Total Pass $ 134,844 $ 330,766 $ 267,482 $ 100,394 $ 86,473 $ 230,519 $ 290,285 $ 1,440,763 Special mention 2,995 7,993 35,296 502 2,305 4,013 24,048 77,152 Substandard 751 10,888 2,968 111 1,428 6,600 18,872 41,618 Total $ 138,590 $ 349,647 $ 305,746 $ 101,007 $ 90,206 $ 241,132 $ 333,205 $ 1,559,533 Current period gross charge-offs $ —  $ 136 $ —  $ —  $ —  $ 20 $ 247 $ 403
Summary of Aging Analysis of the Loan Portfolio by the Time Past Due	The following table reflects an aging analysis of the loan portfolio by the time past due at March 31, 2024 and December 31, 2023. (Dollars in thousands) 30 Days 60 Days 90+ Days Nonaccrual Current Total As of March 31, 2024: Commercial and industrial $ 4,933 $ —  $ —  $ 1,159 $ 604,367 $ 610,459 Real estate - other 5,044 —  —  —  829,099 834,143 Real estate - construction and land —  16,793 —  —  19,093 35,886 SBA —  398 —  53 3,468 3,919 Other 241 169 240 —  35,834 36,484 Total loans, gross $ 10,218 $ 17,360 $ 240 $ 1,212 $ 1,491,861 $ 1,520,891 As of December 31, 2023: Commercial and industrial $ —  $ —  $ —  $ 3,728 $ 622,887 $ 626,615 Real estate - other 1,824 —  —  —  847,482 849,306 Real estate - construction and land —  —  —  —  44,186 44,186 SBA —  —  —  53 3,979 4,032 Other —  —  —  —  35,394 35,394 Total loans, gross $ 1,824 $ —  $ —  $ 3,781 $ 1,553,928 $ 1,559,533
Schedule of Amortized Cost of Individually Evaluated Loans by Type of Collateral	The following table reflects the Company’s collateral dependent loans by portfolio segment and by type of collateral as of March 31, 2024 and December 31, 2023. (Dollars in thousands) Residential Business Total Collateral As of March 31, 2024: Commercial and industrial $ —  $ 8,785 $ 8,785 SBA 451 —  451 Total collateral dependent loans $ 451 $ 8,785 $ 9,236 As of December 31, 2023: Commercial and industrial $ —  $ 3,728 $ 3,728 SBA 53 —  53 Total collateral dependent loans $ 53 $ 3,728 $ 3,781
Summary of Information Related to Impaired Loans	The following table reflects nonaccrual loans by portfolio segment as of March 31, 2024 and December 31, 2023. (Dollars in thousands) Nonaccrual Nonaccrual Total As of March 31, 2024: Commercial and industrial $ 1,159 $ —  $ 1,159 SBA 53 —  53 Total nonaccrual loans $ 1,212 $ —  $ 1,212 As of December 31, 2023: Commercial and industrial $ 3,708 $ 20 $ 3,728 SBA 53 —  53 Total nonaccrual loans $ 3,761 $ 20 $ 3,781
Summary of Allowance for Loan Losses	The following table reflects the changes in, and allocation of, the allowance for credit losses and allowance for loan losses by portfolio segment for the three months ended March 31, 2024 and 2023. (Dollars in thousands) Commercial Real Estate Real Estate SBA Other Total Three months ended March 31, 2024: Beginning balance $ 10,853 $ 3,218 $ 492 $ 521 $ 944 $ 16,028 Provision for credit losses 231 (120 ) 50 (7 ) 147 301 Charge-offs —  —  —  (309 ) (130 ) (439 ) Recoveries 91 —  —  —  —  91 Ending balance $ 11,175 $ 3,098 $ 542 $ 205 $ 961 $ 15,981 Allowance for credit losses / gross loans 1.83 % 0.37 % 1.51 % 5.23 % 2.63 % 1.05 % Net recoveries (charge-offs) / gross loans 0.01 % 0.00 % 0.00 % -7.88 % -0.36 % -0.02 % Three months ended March 31, 2023: Beginning balance $ 10,620 $ 5,322 $ 884 $ 132 $ 47 $ 17,005 Adoption of new accounting standard (1,566 ) (1,725 ) 1 (91 ) 1,541 (1,840 ) Provision for credit losses 1,912 (654 ) (142 ) 1 (653 ) 464 Charge-offs (247 ) —  —  —  —  (247 ) Recoveries —  —  —  —  —  —  Ending balance $ 10,719 $ 2,943 $ 743 $ 42 $ 935 $ 15,382 Allowance for loan losses / gross loans 1.63 % 0.34 % 1.16 % 0.75 % 2.48 % 0.95 % Net recoveries (charge-offs) / gross loans -0.04 % 0.00 % 0.00 % 0.00 % 0.00 % -0.02 %
Summary of Type of Concession Granted and the Financial Effect of the Modification	The following table reflects the type of concession granted and the financial effect of the modifications for the three months ended March 31, 2024. (Dollars in thousands) Amortized % of Total Financial Effect Commercial and industrial $ 11,065 1.81 % Term Extension - maturity date March 15, 2024 December 15, 2024 Commercial and industrial 3,641 0.60 % Term Extension - maturity date extended from January 31, 2024 April 30, 2024 Total modified loans $ 14,706

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	3 Months Ended
	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Summary of Unfunded Fixed Rate Loan Commitments	(Dollars in thousands) Due in Over One Year Over Total Unfunded fixed rate loan commitments: Interest rate less than or equal to 4.00% $ 17,140 $ 2,929 $ 106 $ 20,175 Interest rate between 4.00% and 5.00% 450 3,491 219 4,160 Interest rate greater than or equal to 5.00% 2,270 2,667 1,967 6,904 Total unfunded fixed rate loan commitments $ 19,860 $ 9,087 $ 2,292 $ 31,239
Summary of credit losses for unfunded loan commitments	The following table presents the balance and activity in the allowance for credit losses for unfunded loan commitments for the three months ended March 31, 2024 and 2023. Three Months Ended March 31, (Dollars in thousands) 2024 2023 Beginning balance $ 2,166 $ 430 Adoption of new accounting standard —  1,397 Provision for credit losses (195 ) (106 ) Ending balance $ 1,971 $ 1,721
Summary of Quantitative Information About Operating Leases	The following table reflects the quantitative information for the Company’s leases for the three months ended, and as of, March 31, 2024. (Dollars in thousands) March 31, Operating lease cost (cost resulting from lease payments) $ 590 Operating lease - operating cash flows (fixed payments) $ 598 Operating lease right-of-use $ 8,557 Operating lease liabilities (other liabilities) $ 10,265 Weighted average lease term - operating leases 5.1 years Weighted average discount rate - operating leases 3.39 %
Summary of Lessee, Operating Lease	The following table reflects the minimum commitments under these non-cancellable (Dollars in thousands) March 31, 2024 $ 1,814 2025 2,486 2026 2,451 2027 1,402 2028 1,078 Thereafter 2,063 Total undiscounted cash flows 11,294 Discount on cash flows (1,029 ) Total lease $ 10,265

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments	The carrying amounts and estimated fair values of financial instruments at March 31, 2024 and December 31, 2023 are as follows: Carrying Fair Value Measurements (Dollars in thousands) Level 1 Level 2 Level 3 Total As of March 31, 2024: Financial assets: Cash and cash equivalents $ 203,098 $ 203,098 $ —  $ —  $ 203,098 Investment securities: Available for sale 31,078 —  31,078 —  31,078 Held to maturity 95,840 77,361 7,352 84,713 Loans, net 1,506,133 —  —  1,438,856 1,438,856 Accrued interest receivable 10,120 —  1,018 9,102 10,120 Financial liabilities: Deposits $ 1,639,516 $ 1,311,636 $ 328,188 $ —  $ 1,639,824 Subordinated debt 54,326 —  —  50,196 50,196 Accrued interest payable 3,216 —  3,114 102 3,216 As of December 31, 2023: Financial assets: Cash and due from banks $ 212,354 $ 212,354 $ —  $ —  $ 212,354 Investment securities: Available for sale 44,560 —  44,560 —  44,560 Held to maturity 100,841 82,806 7,224 90,030 Loans, net 1,544,612 —  1,470,794 1,470,794 Accrued interest receivable 8,847 —  982 7,865 8,847 Financial liabilities: Deposits $ 1,625,244 $ 1,315,032 $ 311,213 $ —  $ 1,626,245 Other borrowings 75,000 —  —  75,000 75,000 Subordinated debt 54,291 —  —  50,248 50,248 Accrued interest payable 3,292 —  2,593 699 3,292
Summary of Assets at Fair Value on a Recurring Basis	The Company is required or permitted to record the following assets at fair value on a recurring basis as of March 31, 2024 and December 31, 2023. (Dollars in thousands) Fair Value Level 1 Level 2 Level 3 As of March 31, 2024: Investments available for sale: Mortgage backed securities $ 11,523 $ —  $ 11,523 $ —  Government agencies 19,555 —  19,555 —  Total assets measured at fair value on a recurring basis $ 31,078 $ —  $ 31,078 $ —  As of December 31, 2023: Investments available for sale: Mortgage backed securities $ 15,149 $ —  $ 15,149 $ —  Government agencies 29,411 —  29,411 —  Total assets measured at fair value on a recurring basis $ 44,560 $ —  $ 44,560 $ —
Summary of Impaired Loans Measured at Fair Value on a Non-Recurring Basis	The following table summarizes impaired loans measured at fair value on a non-recurring Carrying Fair Value Measurements (Dollars in thousands) Level 1 Level 2 Level 3 As of March 31, 2024: Individually evaluated loans - Commercial $ 1,159 $ —  $ —  $ 1,159 Individually evaluated loans - SBA 53 —  —  53 Total assets measured at fair value on a non-recurring $ 1,212 $ —  $ —  $ 1,452 As of December 31, 2023: Impaired loans - Commercial $ 3,728 $ —  $ —  $ 3,728 Impaired loans - SBA 53 —  —  53 Total assets measured at fair value on a non-recurring $ 3,781 $ —  $ —  $ 3,781

Nature Of Operations - Addition

Nature Of Operations - Additional Information (Detail)	Jan. 30, 2024
Southern California Bancorp [Member]
Stock holders equity stock split ratio	1.59
Business acquistion percentage of voting interests acquired	57%
Combined company [Member]
Business acquistion percentage of voting interests acquired	43%

Nature Of Operations - Summary

Nature Of Operations - Summary of Earnings Per Share, Basic and Diluted (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 3,817	$ 5,451
Weighted average basic common shares outstanding	8,413,735	8,339,080
Add: dilutive potential common shares	152,977	152,987
Weighted average diluted common shares outstanding	8,566,712	8,492,067
Basic earnings per share	$ 0.45	$ 0.65
Diluted earnings per share	$ 0.45	$ 0.64

Investment Securities - Summary

Investment Securities - Summary Of The Amortized Cost And Estimated Fair Value Of Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 32,229	$ 45,798
Gross Unrealized / Unrecognized Gains	22	25
Gross Unrealized / Unrecognized Losses	(1,173)	(1,263)
Estimated fair value	31,078	44,560
Amortized cost	95,840	100,841
Gross Unrealized / Unrecognized Gains	76	0
Gross Unrealized / Unrecognized Losses	(11,203)	(10,811)
Estimated fair value	84,713	90,030
Mortgage backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	12,288	15,882
Gross Unrealized / Unrecognized Gains	22	25
Gross Unrealized / Unrecognized Losses	(787)	(758)
Estimated fair value	11,523	15,149
Amortized cost	51,997	56,928
Gross Unrealized / Unrecognized Gains	76	0
Gross Unrealized / Unrecognized Losses	(6,718)	(6,140)
Estimated fair value	45,355	50,788
Corporate bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	40,773	40,841
Gross Unrealized / Unrecognized Gains	0	0
Gross Unrealized / Unrecognized Losses	(3,978)	(4,158)
Estimated fair value	36,795	36,683
Government agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	19,941	29,916
Gross Unrealized / Unrecognized Gains	0	0
Gross Unrealized / Unrecognized Losses	(386)	(505)
Estimated fair value	19,555	29,411
Amortized cost	3,070	3,072
Gross Unrealized / Unrecognized Gains	0	0
Gross Unrealized / Unrecognized Losses	(507)	(513)
Estimated fair value	$ 2,563	$ 2,559

Investment Securities - Summa_2

Investment Securities - Summary of Maturities Available for Sale Investment Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Amortized Cost Available for sale securities:
Less that one year	$ 18,372
One to five years	4,976
Five to ten years	0
Beyond ten years	1,448
Securities not due at a single maturity date	7,433
Total investment securities	32,229	$ 45,798
Fair Value Available for sale securities:
Less that one year	18,100
One to five years	4,846
Five to ten years	0
Beyond ten years	1,328
Securities not due at a single maturity date	6,804
Total investment securities	31,078	44,560
Amortized Cost Held to Maturity
Less that one year	13,673
One to five years	14,480
Five to ten years	19,593
Beyond ten years	20,094
Securities not due at a single maturity date	28,000
Total investment securities	95,840	100,841
Fair Value Held to Maturity
Less that one year	13,640
One to five years	14,044
Five to ten years	16,885
Beyond ten years	16,036
Securities not due at a single maturity date	24,108
Total investment securities	$ 84,713	$ 90,030

Investment Securities - Summa_3

Investment Securities - Summary of Amortized Cost and Fair Value of Available for Sale and Held to Maturity Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Held to maturity amortized cost	$ 95,840	$ 100,841
Held to maturity fair value	84,713	90,030
Aaa [Member]
Debt Securities, Available-for-sale [Line Items]
Held to maturity amortized cost	11,261	11,382
Held to maturity fair value	9,179	9,473
Aa1/Aa2/Aa3 [Member]
Debt Securities, Available-for-sale [Line Items]
Held to maturity amortized cost	3,069	3,072
Held to maturity fair value	2,563	2,559
A1/A2/A3 [Member]
Debt Securities, Available-for-sale [Line Items]
Held to maturity amortized cost	4,774	4,770
Held to maturity fair value	3,466	3,543
Not rated [Member]
Debt Securities, Available-for-sale [Line Items]
Held to maturity amortized cost	76,736	81,617
Held to maturity fair value	$ 69,505	$ 74,455

Investment Securities - Summa_4

Investment Securities - Summary of Available-For-Sale Securities and Held to Maturity Securities, Continuous Unrealized Loss Position, Fair Value (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	$ 0	$ 0
Less than 12 months unrealized losses	0	0
12 months or longer fair value	29,338	42,725
12 months or longer unrealized losses	(1,173)	(1,263)
Fair value	29,338	42,725
Unrealized losses	(1,173)	(1,263)
Less than 12 months fair value of held to maturity	0	0
Less than 12 months unrealized losses of held to maturity	0	0
12 months or longer fair value of held to maturity	81,472	90,030
12 months or longer unrealized losses of held to maturity	(11,203)	(10,811)
Fair value of held to maturity	81,472	90,030
Unrealized losses of held to maturity	(11,203)	(10,811)
Mortgage backed securities [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	0	0
Less than 12 months unrealized losses	0	0
12 months or longer fair value	9,783	13,314
12 months or longer unrealized losses	(787)	(758)
Fair value	9,783	13,314
Unrealized losses	(787)	(758)
Less than 12 months fair value of held to maturity	0	0
Less than 12 months unrealized losses of held to maturity	0	0
12 months or longer fair value of held to maturity	42,113	50,788
12 months or longer unrealized losses of held to maturity	(6,718)	(6,140)
Fair value of held to maturity	42,113	50,788
Unrealized losses of held to maturity	(6,718)	(6,140)
Government agencies [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value	0	0
Less than 12 months unrealized losses	0	0
12 months or longer fair value	19,555	29,411
12 months or longer unrealized losses	(386)	(505)
Fair value	19,555	29,411
Unrealized losses	(386)	(505)
Less than 12 months fair value of held to maturity	0	0
Less than 12 months unrealized losses of held to maturity	0	0
12 months or longer fair value of held to maturity	2,563	2,559
12 months or longer unrealized losses of held to maturity	(507)	(513)
Fair value of held to maturity	2,563	2,559
Unrealized losses of held to maturity	(507)	(513)
Corporate bonds [Member]
Investments Debt And Equity Securities [Line Items]
Less than 12 months fair value of held to maturity	0	0
Less than 12 months unrealized losses of held to maturity	0	0
12 months or longer fair value of held to maturity	36,795	36,683
12 months or longer unrealized losses of held to maturity	(3,978)	(4,158)
Fair value of held to maturity	36,795	36,683
Unrealized losses of held to maturity	$ (3,978)	$ (4,158)

Investment Securities - Summa_5

Investment Securities - Summary of Allowance for Credit Losses on held to Maturity Securities (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Beginning balance	$ 55	$ 0
Adoption of new accounting standard	0	110
Provision for credit losses	20	0
Net charge-offs	0	0
Ending balance	$ 75	$ 110

Investment Securities - Additio

Investment Securities - Additional Information (Detail)	Mar. 31, 2024 USD ($) Securities	Dec. 31, 2023 USD ($) Securities	Mar. 31, 2023 Securities
Investments Debt And Equity Securities [Line Items]
Number of available for sale securities in unrealized loss positions	0		0
Allowance for credit losses required for held to maturity securities | $	$ 75,000	$ 55,000
Securities Investment [Member]
Investments Debt And Equity Securities [Line Items]
Number of available for sale securities in unrealized loss positions	51	55

Loans and Allowance For Credi_3

Loans and Allowance For Credit Losses - Summary of Outstanding Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	$ 1,520,891	$ 1,559,533
Deferred loan origination costs, net	1,223	1,107
Allowance for credit losses	(15,981)	(16,028)	$ (15,382)	$ (17,005)
Total loans, net	1,506,133	1,544,612
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	610,459	626,615
Allowance for credit losses	(11,175)	(10,853)	(10,719)	(10,620)
Real estate—other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	834,143	849,306
Real estate - construction and land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	35,886	44,186
Allowance for credit losses	(542)	(492)	(743)	(884)
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	3,919	4,032
Allowance for credit losses	(205)	(521)	(42)	(132)
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable Gross	36,484	35,394
Allowance for credit losses	$ (961)	$ (944)	$ (935)	$ (47)

Loans and Allowance For Credi_4

Loans and Allowance For Credit Losses - Summary of Investment in Loans by Credit Quality Indicators (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023	$ 9,587	$ 138,590
2023/2022	129,949	349,647
2022/2021	338,914	305,746
2021/2020	301,006	101,007
2020/2019	98,308	90,206
Prior	316,867	241,132
Revolving	326,260	333,205
Total	1,520,891	1,559,533
Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023	2,575	87,167
2023/2022	80,545	151,113
2022/2021	142,303	59,038
2021/2020	56,147	16,130
2020/2019	14,879	28,657
Prior	59,497	35,553
Revolving	254,513	248,957
Total	610,459	626,615
Real estate - other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023	6,979	44,570
2023/2022	41,701	186,142
2022/2021	190,970	221,147
2021/2020	221,826	84,708
2020/2019	83,281	60,581
Prior	220,193	168,403
Revolving	69,193	83,755
Total	834,143	849,306
Real Estate Construction And Land [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023		6,853
2023/2022	7,675	10,134
2022/2021	3,535	25,544
2021/2020	23,033
Prior	1,643	1,655
Total	35,886	44,186
SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023/2022		747
2022/2021	734	17
2020/2019		968
Prior	3,083	2,192
Revolving	102	108
Total	3,919	4,032
Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023	33
2023/2022	28	1,511
2022/2021	1,372
2021/2020		169
2020/2019	148	0
Prior	32,451	33,329
Revolving	2,452	385
Total	36,484	35,394
Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023	9,587	134,844
2023/2022	126,192	330,766
2022/2021	324,224	267,482
2021/2020	247,716	100,394
2020/2019	97,809	86,473
Prior	303,737	230,519
Revolving	284,723	290,285
Total	1,393,988	1,440,763
Pass [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023	2,575	86,292
2023/2022	79,677	136,525
2022/2021	131,880	55,779
2021/2020	51,887	15,517
2020/2019	14,380	27,484
Prior	58,129	35,217
Revolving	212,976	206,037
Total	551,504	562,851
Pass [Member] | Real estate - other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023	6,979	44,570
2023/2022	41,701	181,849
2022/2021	186,703	186,142
2021/2020	187,023	84,708
2020/2019	83,281	58,419
Prior	210,914	160,252
Revolving	69,193	83,755
Total	785,794	799,695
Pass [Member] | Real Estate Construction And Land [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023		3,982
2023/2022	4,786	10,134
2022/2021	3,535	25,544
2021/2020	8,806
Total	17,127	39,660
Pass [Member] | SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023/2022		747
2022/2021	734	17
2020/2019		570
Prior	2,243	1,721
Revolving	102	108
Total	3,079	3,163
Pass [Member] | Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023	33
2023/2022	28	1,511
2022/2021	1,372
2021/2020		169
2020/2019	148	0
Prior	32,451	33,329
Revolving	2,452	385
Total	36,484	35,394
Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023		2,995
2023/2022	117	7,993
2022/2021	4,517	35,296
2021/2020	49,207	502
2020/2019	442	2,305
Prior	5,162	4,013
Revolving	22,159	24,048
Total	81,604	77,152
Special Mention [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023		124
2023/2022	117	3,700
2022/2021	250	1,940
2021/2020	1,815	502
2020/2019	442	730
Prior	937	336
Revolving	22,159	24,048
Total	25,720	31,380
Special Mention [Member] | Real estate - other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023/2022		4,293
2022/2021	4,267	33,356
2021/2020	33,165
2020/2019		1,575
Prior	4,137	3,575
Total	41,569	42,799
Special Mention [Member] | Real Estate Construction And Land [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023		2,871
2021/2020	14,227
Total	14,227	2,871
Special Mention [Member] | SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	88	102
Total	88	102
Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023		751
2023/2022	3,640	10,888
2022/2021	10,173	2,968
2021/2020	4,083	111
2020/2019	57	1,428
Prior	7,968	6,600
Revolving	19,378	18,872
Total	45,299	41,618
Substandard [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024/2023		751
2023/2022	751	10,888
2022/2021	10,173	1,319
2021/2020	2,445	111
2020/2019	57	443
Prior	431
Revolving	19,378	18,872
Total	33,235	32,384
Substandard [Member] | Real estate - other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021		1,649
2021/2020	1,638
2020/2019		587
Prior	5,142	4,576
Total	6,780	6,812
Substandard [Member] | Real Estate Construction And Land [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023/2022	2,889
Prior	1,643	1,655
Total	4,532	1,655
Substandard [Member] | SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2020/2019		398
Prior	752	369
Total	752	767
Current period gross charge-offs [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023/2022		136
Prior	439	20
Revolving		247
Total	439	403
Current period gross charge-offs [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023/2022		136
Prior		20
Revolving		247
Total		$ 403
Current period gross charge-offs [Member] | SBA [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	309
Total	309
Current period gross charge-offs [Member] | Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	130
Total	$ 130

Loans and Allowance For Credi_5

Loans and Allowance For Credit Losses - Summary of Aging Analysis of the Loan Portfolio by the Time Past Due (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Current	$ 1,520,891	$ 1,559,533
Total	1,520,891	1,559,533
Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Current	610,459	626,615
Total	610,459	626,615
Real Estate - Other [Member]
Financing Receivable, Past Due [Line Items]
Current	834,143	849,306
Real Estate - Construction & Land [Member]
Financing Receivable, Past Due [Line Items]
Current	35,886	44,186
Total	35,886	44,186
SBA [Member]
Financing Receivable, Past Due [Line Items]
Current	3,919	4,032
Total	3,919	4,032
Other [Member]
Financing Receivable, Past Due [Line Items]
Current	36,484	35,394
Total	36,484	35,394
Loans Receivable [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,212	3,781
Current	1,491,861	1,553,928
Total	1,520,891	1,559,533
Loans Receivable [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	10,218	1,824
Loans Receivable [Member] | Over 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	17,360
Loans Receivable [Member] | Over 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	240
Loans Receivable [Member] | Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,159	3,728
Current	604,367	622,887
Total	610,459	626,615
Loans Receivable [Member] | Commercial And Industrial [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	4,933
Loans Receivable [Member] | Real Estate - Other [Member]
Financing Receivable, Past Due [Line Items]
Current	829,099	847,482
Total	834,143	849,306
Loans Receivable [Member] | Real Estate - Other [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	5,044	1,824
Loans Receivable [Member] | Real Estate - Construction & Land [Member]
Financing Receivable, Past Due [Line Items]
Current	19,093	44,186
Total	35,886	44,186
Loans Receivable [Member] | Real Estate - Construction & Land [Member] | Over 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	16,793
Loans Receivable [Member] | SBA [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	53	53
Current	3,468	3,979
Total	3,919	4,032
Loans Receivable [Member] | SBA [Member] | Over 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	398
Loans Receivable [Member] | Other [Member]
Financing Receivable, Past Due [Line Items]
Current	35,834	35,394
Total	36,484	$ 35,394
Loans Receivable [Member] | Other [Member] | Over 30 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	241
Loans Receivable [Member] | Other [Member] | Over 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	169
Loans Receivable [Member] | Other [Member] | Over 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Current	$ 240

Loans and Allowance For Credi_6

Loans and Allowance For Credit Losses - Summary of Non Accrual Loans and the Related Allowance for Credit Losses by Portfolio Segment (Detail) - Loans Receivable [Member] - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans with No Allowance	$ 1,212	$ 3,761
Financing receivable non accrual with allowance	0	20
Nonaccrual	1,212	3,781
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans with No Allowance	1,159	3,708
Financing receivable non accrual with allowance	0	20
Nonaccrual	1,159	3,728
SBA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans with No Allowance	53	53
Financing receivable non accrual with allowance	0	0
Nonaccrual	$ 53	$ 53

Loans and Allowance For Credi_7

Loans and Allowance For Credit Losses - Schedule of Amortized Cost of Individually Evaluated Loans by Type of Collateral (Detail) - Loans Receivable [Member] - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	$ 9,236	$ 3,781
SBA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	451	53
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	8,785	3,728
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	451	53
Residential Real Estate [Member] | SBA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	451	53
Residential Real Estate [Member] | Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	0	0
Business Assets [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	8,785	3,728
Business Assets [Member] | SBA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	0	0
Business Assets [Member] | Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual	$ 8,785	$ 3,728

Loans and Allowance For Credi_8

Loans and Allowance For Credit Losses - Summary of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 16,028	$ 17,005
Adoption of new accounting standard		(1,840)
Provision for credit losses	301	464
Charge-offs	(439)	(247)
Recoveries	91
Ending balance	$ 15,981	$ 15,382
Allowance for credit losses / gross loans	1.05%	0.95%
Net recoveries (charge-offs) / gross loans	(0.02%)	(0.02%)
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 10,853	$ 10,620
Adoption of new accounting standard		(1,566)
Provision for credit losses	231	1,912
Charge-offs		(247)
Recoveries	91
Ending balance	$ 11,175	$ 10,719
Allowance for credit losses / gross loans	1.83%	1.63%
Net recoveries (charge-offs) / gross loans	0.01%	(0.04%)
Real Estate, Other [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 3,218	$ 5,322
Adoption of new accounting standard		(1,725)
Provision for credit losses	(120)	(654)
Ending balance	$ 3,098	$ 2,943
Allowance for credit losses / gross loans	0.37%	0.34%
Net recoveries (charge-offs) / gross loans	0%	0%
Real Estate Construction And Land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 492	$ 884
Adoption of new accounting standard		1
Provision for credit losses	50	(142)
Ending balance	$ 542	$ 743
Allowance for credit losses / gross loans	1.51%	1.16%
Net recoveries (charge-offs) / gross loans	0%	0%
SBA [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 521	$ 132
Adoption of new accounting standard		(91)
Provision for credit losses	(7)	1
Charge-offs	(309)
Ending balance	$ 205	$ 42
Allowance for credit losses / gross loans	5.23%	0.75%
Net recoveries (charge-offs) / gross loans	(7.88%)	0%
Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Beginning balance	$ 944	$ 47
Adoption of new accounting standard		1,541
Provision for credit losses	147	(653)
Charge-offs	(130)
Ending balance	$ 961	$ 935
Allowance for credit losses / gross loans	2.63%	2.48%
Net recoveries (charge-offs) / gross loans	(0.36%)	0%

Loans and Allowance For Credi_9

Loans and Allowance For Credit Losses - Summary of Type of Concession Granted and the Financial Effect of the Modification (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost	$ 14,706
Commercial And Industrial [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost	$ 11,065
% of Total Portfolio Segment	1.81%
Commercial And Industrial [Member] | Minimum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Financial Effect	0 months
Commercial And Industrial [Member] | Maximum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Financial Effect	0 months
Commercial and Industrial Sector [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost	$ 3,641
% of Total Portfolio Segment	0.60%
Commercial and Industrial Sector [Member] | Minimum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Financial Effect	0 months
Commercial and Industrial Sector [Member] | Maximum [Member]
Loans and Leases Receivable Disclosure [Line Items]
Financial Effect	0 months

Loans and Allowance For Cred_10

Loans and Allowance For Credit Losses - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest forgone on nonaccrual loans	$ 62,000	$ 42,000
Interest on cash basis on loans individually evaluated for expected credit losses	$ 0	$ 0

Borrowing Arrangements - Additi

Borrowing Arrangements - Additional Information (Detail) - USD ($)		3 Months Ended
	Aug. 17, 2021	Mar. 31, 2024	Dec. 31, 2023	Dec. 29, 2023	Sep. 30, 2020
Short-term Debt [Line Items]
FHLB Advance, Collateral Pledged		$ 397,000,000	$ 401,400,000
FHLB Advance, Available Borrowing Capacity		351,500,000	280,900,000
FHLB Advance, Amount Of Advances				$ 75,000,000
FHLB Advance, Interest Rate				5.70%
Junior Subordinated debt securities		$ 54,326,000	54,291,000
Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, IssuanceDate		Sep. 30, 2020
Debt Instrument, Interest Rate Terms		The subordinated debt has a fixed interest rate of 5.00% for the first 5 years
SOFR [Member] | Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Variable Interest Rate Basis		variable rate equal to then current three-month term Secured Overnight Financing Rate (“SOFR”) plus 0.488%.
Debt Instrument, Variable Rate		0.488%
Debt Instrument, Face Amount					$ 20,000,000
Debt Instrument, Fixed Interest Rate					5%
Related issuance costs		$ 300,000
Junior Subordinated debt securities		$ 20,000,000	20,000,000
SOFR [Member] | Additional Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Variable Interest Rate Basis		variable rate equal to then current three-month term SOFR plus 0.286%
Debt Instrument, Variable Rate		3.50%
Debt Instrument, Face Amount	$ 35,000,000
Debt Instrument, Interest Rate Terms		The subordinated debt has a fixed interest rate of 3.50%
Related issuance costs	$ 760,000
Junior Subordinated debt securities		$ 35,000,000	35,000,000
Debt Instrument, Maturity Date	Sep. 01, 2031
Correspondent Banks [Member]
Short-term Debt [Line Items]
Borrowings outstanding		0	0
Line Of Credit Maximum Borrowing Capacity		123,000,000
Secured Debt [Member] | Federal Reserve Bank of San Francisco [Member]
Short-term Debt [Line Items]
Loans Pledged As Collateral		410,500,000	432,500,000
Line Of Credit Available Borrowing Capacity		334,300,000	343,300,000
Revolving Credit Facility [Member]
Short-term Debt [Line Items]
Borrowings outstanding		0	$ 0
Line Of Credit Maximum Borrowing Capacity		$ 3,000,000
Revolving Credit Facility [Member] | One Year Prime Rate [Member]
Short-term Debt [Line Items]
Debt Instrument, Variable Interest Rate Basis		one-year term at a rate of Prime plus 0.40%
Debt Instrument, Variable Rate		0.40%

Commitments and Contingent Li_3

Commitments and Contingent Liabilities - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Percentage Of Commercial And industrial Loans to Total Loans
Cash Deposit FDIC Insurance Limit	$ 250,000
Uninsured deposits at financial institutions	2,500,000		$ 3,000,000
Commitments for loans	612,600,000		676,100,000
Rent and equipment expense	590,000	$ 488,000
Outstanding unfunded commitments for loans fixed rate of interest amount	31,239,000
Outstanding unfunded commitments for loans variable rate of interest amount	581,400,000
Allowances for credit loss for unfunded loan commitment	$ 1,971,000	$ 1,721,000	$ 2,166,000	$ 430,000

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Summary of Unfunded Fixed Rate Loan Commitments (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	$ 19,860
Over One Year But Less Than Five Years	9,087
Over Five Years	2,292
Total	31,239
Interest rate less than or equal to 4.00% [Member]
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	17,140
Over One Year But Less Than Five Years	2,929
Over Five Years	106
Total	20,175
Interest rate between 4.00% and 5.00% [Member]
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	450
Over One Year But Less Than Five Years	3,491
Over Five Years	219
Total	4,160
Interest rate greater than or equal to 5.00% [Member]
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	2,270
Over One Year But Less Than Five Years	2,667
Over Five Years	1,967
Total	$ 6,904

Commitments and Contingent Li_5

Commitments and Contingent Liabilities - Summary of Unfunded Fixed Rate Loan Commitments (Detail) (Parenthetical)	Mar. 31, 2024
Interest rate less than or equal to 4.00% [Member]
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loan receivable unfunded commitements fixed rate of interest percentage	4%
Interest rate greater than or equal to 5.00% [Member]
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loan receivable unfunded commitements fixed rate of interest percentage	5%
Maximum [Member] | Interest rate between 4.00% and 5.00% [Member]
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loan receivable unfunded commitements fixed rate of interest percentage	5%
Minimum [Member] | Interest rate between 4.00% and 5.00% [Member]
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Loan receivable unfunded commitements fixed rate of interest percentage	4%

Commitments and Contingent Li_6

Commitments and Contingent Liabilities - Summary Of Credit Losses For Unfunded Loan Commitments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Beginning balance	$ 2,166	$ 430
Adoption of new accounting standard	0	1,397
Provision for credit losses	(195)	(106)
Ending balance	$ 1,971	$ 1,721

Commitments and Contingent Li_7

Commitments and Contingent Liabilities - Summary of Quantitative Information for the Company's Leases (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating lease cost (cost resulting from lease payments)	$ 590,000	$ 488,000
Operating lease - operating cash flows (fixed payments)	598,000
Operating lease - ROU assets	8,557,000
Operating lease - liabilities	$ 10,265,000
Weighted average lease term - operating leases	5 years 1 month 6 days
Weighted average discount rate - operating leases	3.39%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Interest Receivable and Other Assets

Commitments and Contingent Li_8

Commitments and Contingent Liabilities - Summary of Operating Lease (Detail) $ in Thousands	Mar. 31, 2024 USD ($)
2024	$ 1,814
2025	2,486
2026	2,451
2027	1,402
2028	1,078
Thereafer	2,063
Total undiscounted cash flows	11,294
Discount on cash flows	(1,029)
Total lease liability	$ 10,265
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Total lease liability

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial assets
Cash and cash equivalents	$ 203,098	$ 212,354
Available for sale	31,078	44,560
Held to maturity	84,713	90,030
Loans, net	1,438,856	1,470,794
Accrued interest receivable	10,120	8,847
Financial liabilities
Deposits	1,639,824	1,626,245
Other borrowings		75,000
Subordinated debt	50,196	50,248
Accrued interest payable	3,216	3,292
Carrying Amount [Member]
Financial assets
Cash and cash equivalents	203,098	212,354
Available for sale	31,078	44,560
Held to maturity	95,840	100,841
Loans, net	1,506,133	1,544,612
Accrued interest receivable	10,120	8,847
Financial liabilities
Deposits	1,639,516	1,625,244
Other borrowings		75,000
Subordinated debt	54,326	54,291
Accrued interest payable	3,216	3,292
Level 1 [Member]
Financial assets
Cash and cash equivalents	203,098	212,354
Financial liabilities
Deposits	1,311,636	1,315,032
Level 2 [Member]
Financial assets
Available for sale	31,078	44,560
Held to maturity	77,361	82,806
Accrued interest receivable	1,018	982
Financial liabilities
Deposits	328,188	311,213
Accrued interest payable	3,114	2,593
Level 3 [Member]
Financial assets
Available for sale	0	0
Held to maturity	7,352	7,224
Loans, net	1,438,856	1,470,794
Accrued interest receivable	9,102	7,865
Financial liabilities
Other borrowings		75,000
Subordinated debt	50,196	50,248
Accrued interest payable	$ 102	$ 699

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended
	Apr. 15, 2016	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Measurement With Unobservable Inputs Transfers Net		$ 0
Fair Value Measurement With Unobservable Inputs Asset Value		$ 0	$ 0
Junior Subordinated Debt [Member] | Prime Rate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Variable Rate	2%

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Assets at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	$ 31,078	$ 44,560
Mortgage backed securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	11,523	15,149
Government agencies [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	19,555	29,411
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	31,078	44,560
Level 2 [Member] | Mortgage backed securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	11,523	15,149
Level 2 [Member] | Government agencies [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	19,555	29,411
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a recurring basis	$ 0	$ 0

Fair Value Measurements - Sum_3

Fair Value Measurements - Summary of Impaired Loans Measured at Fair Value on a Non-Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 1,212	$ 3,781
Carrying Amount [Member] | Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	1,159	3,728
Carrying Amount [Member] | SBA [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	53	53
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	1,452	3,781
Level 3 [Member] | Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	1,159	3,728
Level 3 [Member] | SBA [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 53	$ 53