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Issuer Accumulated amortization of debt issuance costs Accumulated Amortization, Debt Issuance Costs Income Taxes Income Tax Disclosure [Text Block] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Four After ten years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 Total capital (to risk-weighted assets), capital conservation buffer (in percent) Banking Regulation, Capital Conservation Buffer, Total Risk-Based Capital, Actual Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent (Payments) advances on other borrowings Proceeds from (Repayments of) Short-Term Debt Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Earnings on BOLI Earnings on BOLI Bank Owned Life Insurance Income Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] PledgingPurpose [Domain] Pledging Purpose [Domain] Entity Registrant Name Entity Registrant Name BOLI BOLI [Policy Text Block] BOLI Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Federal Reserve Bank Of San Francisco Federal Reserve Bank Of San Francisco [Member] Federal Reserve Bank Of San Francisco State Deferred State and Local Income Tax Expense (Benefit) Fair Value as of Grant Date Award Grant Date Fair Value Net change in deposits Increase (Decrease) in Deposits Affiliated Entity Affiliated Entity [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Geographical [Domain] Geographical [Domain] Common stock issued Stock Issued During Period, Value, New Issues Nature of Operations and Principles of Consolidation Consolidation, Policy [Policy Text Block] Largest single deposit Largest Single Deposit Largest Single Deposit Restatement Determination Date: Restatement Determination Date [Axis] Title of 12(b) Security Title of 12(b) Security Concentration Risk Type [Axis] Concentration Risk Type [Axis] Common stock, no par value; 100,000,000 shares authorized; 21,319,083 shares issued and outstanding at December 31, 2024; 17,256,989 shares issued and outstanding at December 31, 2023 Common Stock, Value, Issued Document Financial Statement Error Correction Document Financial Statement Error Correction [Flag] Total Past Due Financial Asset, Past Due [Member] Tier 1 leverage, Actual Ratio, Ratio (in percent) Banking Regulation, Tier 1 Leverage Capital Ratio, Actual Interest-bearing deposits in banks Interest-Bearing Deposits in Banks and Other Financial Institutions After ten years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Deferred Tax Asset (Interest receivable and other assets) Other Deferred Tax Assets, Other Matching contribution vesting percentage (in percent) Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Preferred stock, no par value; 10,000,000 shares authorized; zero issued and outstanding at December 31, 2024 and 2023 Preferred Stock, Value, Issued State taxes Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Total deferred tax liabilities Deferred Tax Liabilities, Gross Interest-bearing domestic deposit, time deposits Total time deposits Interest-Bearing Domestic Deposit, Time Deposits Percentage of deposits over five million deposits Percentage of Deposits over $5 Million to Deposits Percentage of Deposits over $5 Million to Deposits 2020 Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year Basic earnings per common share (in USD per share) Basic EPS (in USD per share) Earnings Per Share, Basic Proceeds from issuance of stock, net of issuance costs Proceeds from Issuance of Common Stock Operating cash flows for operating leases Operating Lease, Payments Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Loan-related fees Loan-Related Fees Loan-Related Fees 2028 Time Deposit Maturities, Year Four Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Premises and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Gross proceeds from sale of loans Proceeds from Sale, Loan, Held-for-Sale Interest-bearing transaction accounts Interest Expense Domestic Deposit Liabilities, Checking Less: outstanding borrowings Long-Term Line of Credit Grants in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Over-Allotment Option Over-Allotment Option [Member] Summary of Fair Value 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or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Investment in banking subsidiary Investment In Banking Subsidiary Investment In Banking Subsidiary Tier 1 capital (to risk-weighted assets), Required for Capital Adequacy Purposes, Amount Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum Current Financial Asset, Not Past Due [Member] Non-interest-bearing Noninterest-Bearing Deposit Liabilities ROUA Deferred Tax Liabilities, Leasing Arrangements Commercial: Commercial Portfolio Segment [Member] Document Fiscal Year Focus Document Fiscal Year Focus Supplemental employee retirement plan Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits Summary of Non-accrual Loans Financing Receivable, Nonaccrual [Table Text Block] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Document Period End Date Document Period End Date Sale of Stock [Axis] Sale of Stock [Axis] Gain on available-for-sale assets Deferred Tax Assets, Gain (Loss) On Available-For-Sale Assets Deferred Tax Assets, Gain (Loss) On Available-For-Sale Assets Tier 1 leverage, Required for Capital Adequacy Purposes, Ratio (in percent) Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum Total expected operating lease payments Lessee, Operating Lease, Liability, to be Paid Equity in undistributed banking subsidiary income Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Number of unvested restricted shares (in shares) Beginning of the period balance (in shares) End of the period balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Asset Class [Axis] Asset Class [Axis] Insider Trading Arrangements [Line Items] 2027 Time Deposit Maturities, Year Three 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three Deferred loan fees Deferred Tax Liabilities, Deferred Expense, Debt Issuance Costs Document Transition Report Document Transition Report Carrying value of low income housing tax credit funds Investment, Proportional Amortization Method, Elected, Amount Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Entity Current Reporting Status Entity Current Reporting Status Retained Earnings Retained Earnings [Member] Other time accounts Interest-Bearing Domestic Deposit, Other Time Deposit Proceeds from issuance initial public offering Proceeds from Issuance Initial Public Offering Amortization of subordinated note issuance costs Amortization of Debt Issuance Costs Repayments Proceeds from Collection of Other Receivables Greater Than 90 Days Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Other Receivables [Roll Forward] Other Receivables [Roll Forward] Other Receivables Residential construction Real estate, Residential construction Real Estate Residential Construction Loans [Member] Real Estate Residential Construction Loans [Member] Discount for present value of expected cash flows Lessee, Operating Lease, Liability, To Be Paid, Discount For Present Value Lessee, Operating Lease, Liability, To Be Paid, Discount For Present Value Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Total non-interest expense Noninterest Expense Executive Category: Executive Category [Axis] Common equity tier 1 capital (to risk-weighted assets), Ratio to be Well-Capitalized under Prompt Corrective Action Provisions, Ratio (in percent) Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum Investment Program Proportional Amortization Method Elected Income Tax Credit And Other Income Tax Benefit Before Amortization Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag InvestmentProgramProportionalAmortizationMethodElectedIncomeTaxCreditAndOtherIncomeTaxBenefitBeforeAmortizationStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag InvestmentProgramProportionalAmortizationMethodElectedIncomeTaxCreditAndOtherIncomeTaxBenefitBeforeAmortizationStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag Schedule of Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Purchases of securities available-for-sale Payments to Acquire Debt Securities, Available-for-Sale Letter of Credit Letter of Credit [Member] Company Selected Measure Name Company Selected Measure Name