Schedule of Debt Securities Available-for-sale Debt Securities, Available-for-Sale [Table Text Block] Supplemental Executive Retirement Plan Pension and Other Postretirement Plans, Pensions, Policy [Policy Text Block] Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract] Award Timing Predetermined Award Timing Predetermined [Flag] Amortization of low income housing tax credits Amortization - increase in tax expense Investment Program, Proportional Amortization Method, Applied, Amortization Expense Entity File Number Entity File Number Operating lease liabilities exchanged for ROUA Lease Obligation Incurred Qualified Affordable Housing Tax Credits - decrease in tax expense Investment Program, Proportional Amortization Method, Elected, Income Tax Credit Schedule of Interest Expense Recognized on Interest-Bearing Deposits Interest Expense Recognized on Interest-Bearing Deposits [Table Text 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Action Provisions, Amount Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities and Equity [Abstract] Net unrealized holding gain (loss) on securities available-for-sale during the period OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment and Tax Cover [Abstract] Cover [Abstract] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Equity Incentive Plan Equity Incentive Plan [Member] Equity Incentive Plan Maximum Maximum [Member] Purchase of transferable tax credits Payments For Transferable Tax Credits Payments For Transferable Tax Credits After ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Restricted Stock Restricted Stock [Member] Tier 1 capital (to risk-weighted assets), Ratio to be Well-Capitalized under Prompt Corrective 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other Consumer And Other Portfolio Segment [Member] Consumer And Other Portfolio Segment Trading Symbol Trading Symbol 2029 Lessee, Operating Lease, Liability, to be Paid, Year Four Nontaxable securities Interest Income, Securities, Operating, Tax Exempt Entity Address, City or Town Entity Address, City or Town Marketable Securities [Line Items] Marketable Securities [Line Items] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Serviced loans with unpaid principal balance Impaired Financing Receivable, With No Related Allowance, Unpaid Principal Balance, Serviced On Behalf Of Others Impaired Financing Receivable, With No Related Allowance, Unpaid Principal Balance, Serviced On Behalf Of Others Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount (Payments) advances on other borrowings Proceeds from (Repayments of) Short-Term Debt Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. 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Information Condensed Financial Information of Parent Company Only Disclosure [Text Block] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Unfunded Loan Commitment Unfunded Loan Commitment [Member] Deferred loan fees Deferred Tax Liabilities, Deferred Expense, Debt Issuance Costs Debt issuance costs Debt Issuance Costs, Net Debt instrument, floating interest rate (in percent) Debt Instrument, Floating Interest Rate Debt Instrument, Floating Interest Rate Total non-interest income Noninterest Income Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Gain on sale of loans Gain (Loss) on Sales of Loans, Net Low income housing tax credits Low Income Housing Tax Credits Low Income Housing Tax Credits Gross unrealized losses Debt Securities, Held-to-Maturity, 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Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff After one but within five years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Interest-bearing transaction accounts Interest-Bearing Domestic Deposit, Checking Provision for income taxes Income tax expense Income tax benefit Income Tax Expense (Benefit) Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Other assets Other Assets Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Commercial construction Real estate, Commercial construction Real Estate Commercial Construction Loans [Member] Real Estate Commercial Construction Loans [Member] Bank common stock exchanged for company common stock (in shares) Common Stock, Convertible, Shares Issuable Common Stock, Convertible, Shares Issuable Premises and equipment, gross Property, Plant and Equipment, Gross Within one year Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Furniture, fixtures, and equipment Furniture, Fixtures, and Equipment [Member] Furniture, Fixtures, and Equipment Total capital (to risk-weighted assets), capital conservation buffer (in percent) Banking Regulation, Capital Conservation Buffer, Total Risk-Based Capital, Actual Expense for matching employees' contributions Defined Contribution Plan, Employer Discretionary Contribution Amount Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company 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Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Proceeds from sale of securities available-for-sale Sales proceeds Proceeds from Sale of Debt Securities, Available-for-Sale Other real estate sale proceeds Proceeds from Sale of Other Real Estate Estimated useful life (in years) Property, Plant and Equipment, Useful Life Preferred stock, par value (in USD per share) Preferred Stock, Par or Stated Value Per Share Subsequent Event Subsequent Event [Member] Recoveries Financing Receivable, Allowance for Credit Loss, Recovery Net interest income Interest Income (Expense), Operating Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Tier 1 capital (to risk-weighted assets), Actual Ratio, Amount Banking Regulation, Tier 1 Risk-Based Capital, Actual Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Time accounts, $250 or more Interest Expense Domestic Deposit Liabilities, Time Deposit 250000 Or More Interest Expense Domestic Deposit Liabilities, Time Deposit 250000 Or More Loan-related expenses Loan-Related Expenses Loan-Related Expenses Equity Components [Axis] Equity Components [Axis] Entity Ex Transition Period Entity Ex Transition Period Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Sublease income Sublease Income Death benefits Life Settlement Contracts, Fair Value Method, Face Value State tax Deferred Tax Assets, State Taxes Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Number of reportable segments Number of Reportable Segments Schedule of Interest-Bearing Deposits Schedule of Interest-Bearing Deposits [Table Text Block] Schedule of Interest-Bearing Deposits Equity Incentive Plan Compensation and Employee Benefit Plans [Text Block] Commercial Real Estate, Commercial Commercial Real Estate [Member] Entity Address, State or Province Entity Address, State or Province Substandard Substandard [Member] Total interest and fee income Dividends from banking subsidiary Interest and Dividend Income, Operating Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Cash dividends paid Common stock dividends Dividends, Common Stock Loans held for investment, net of allowance for credit losses Loans Receivable, Fair Value Disclosure Real Estate Portfolio Segment Real Estate Portfolio Segment [Member] Real Estate Portfolio Segment Individual: Individual [Axis] Deposits over five million, amount Deposits, $5 Million Or More, Amount Deposits, $5 Million Or More, Amount Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Payments of dividends Payments of Ordinary Dividends, Common Stock Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Document Annual Report Document Annual Report Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Tier 1 capital (to risk-weighted assets), Required for Capital Adequacy Purposes, Amount Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum Year four Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year Entity Interactive Data Current Entity Interactive Data Current Year three Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Financing Receivable, Modified [Line Items] Financing Receivable, Modified [Line Items] Interest and fee income: Interest and Dividend Income, Operating [Abstract] Total non-interest expense Noninterest Expense Payment Deferral Payment Deferral [Member] Transfers of Financial Assets Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Service charges on deposit accounts Service charges on deposit accounts Service charges on deposit accounts Deposits Total interest expense on interest-bearing deposits Interest Expense, Deposits Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Year one Financing Receivable, Year One, Originated, Current Fiscal Year Non-interest income: Noninterest Income [Abstract] Money market accounts Interest-Bearing Domestic Deposit, Money Market Revolving Loans Financing Receivable, Revolving Condensed Financial Statements [Table] Condensed Financial Statements [Table] Entity Central Index Key Entity Central Index Key PEO Name PEO Name Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] 80th Percentile or Higher 80th Percentile Or Higher [Member] 80th Percentile Or Higher Investment in subsidiary Payments to Acquire Interest in Subsidiaries and Affiliates Schedule of Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Tier 1 Leverage, Required for Capital Adequacy Purposes, Amount Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum Commitment for low income housing tax credits Investment Program, Proportional Amortization Method, Elected, Commitment Non-interest-bearing Noninterest-Bearing Deposit Liabilities Interest Bearing Depostis [Line Items] Interest Bearing Depostis [Line Items] Interest Bearing Depostis Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Tier 1 capital (to risk-weighted assets), required for capital adequacy purposes, ratio (in percent) Tier 1 capital (to risk-weighted assets), Required for Capital Adequacy Purposes, Ratio (in percent) Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum Income tax expense at U.S. federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Deposits And Federal Funds Purchased Deposits And Federal Funds Purchased [Member] Deposits And Federal Funds Purchased Loans held for investment Total Total Loans Receivable Financing Receivable, before Allowance for Credit Loss Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Address Line One Entity Address, Address Line One Number of branch offices Number Of Branch Offices Number Of Branch Offices Entity Address, Address Line Two Entity Address, Address Line Two Farmland Real estate, farmland Real Estate Farmland [Member] Real Estate Farmland [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Change in accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Fair Value as of Grant Date Award Grant Date Fair Value Salaries and employee benefits Labor and Related Expense Tier 1 leverage, required for capital adequacy purposes, ratio (in percent) Tier 1 leverage, Required for Capital Adequacy Purposes, Ratio (in percent) Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum Shares granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than 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Financing Receivable, Nonaccrual [Table Text Block] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Two Condensed Financial Information Disclosure [Abstract] Condensed Financial Information Disclosure [Abstract] Investments, All Other Investments [Abstract] Investments, All Other Investments [Abstract] Purchase of FHLB stock Payments for (Proceeds from) Federal Home Loan Bank Stock Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Non-PEO NEO Non-PEO NEO [Member] Total LCs issued Letters of Credit Outstanding, Amount Securities available-for-sale, allowance for credit loss Debt Securities, Available-for-Sale, Allowance for Credit Loss ROUA Deferred Tax Liabilities, Leasing Arrangements Gross unrealized gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Allowance for credit losses Allowance for Credit Losses - Loans Reserve for Unfunded Commitments (Interest payable and other liabilities) Beginning Balance Ending Balance Allowance for credit losses Financing Receivable, Allowance for Credit Loss Award Type [Domain] Award Type [Domain] ICS I C S [Member] ICS [Member] 2026 Lessee, Operating Lease, Liability, to be Paid, Year One Equity Awards Adjustments Equity Awards Adjustments [Member] Leasehold improvements Leasehold Improvements [Member] Advertising and promotional Advertising Expense Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Other income Other Income Compensation Amount Outstanding Recovery Compensation Amount Total capital (to risk-weighted assets), Ratio to be Well-Capitalized under Prompt Corrective Action Provisions, Amount Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Fair Value Estimate of Fair Value Measurement [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] After one but within five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five FHLB Agreement FHLB Agreement [Member] FHLB Agreement 2029 Time Deposit Maturities, Year Four Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] After five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Number of investment securities in a continuous loss position for twelve months or more Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Schedule of Pledged 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Income (Expense), after Provision for Loan Loss Company Selected Measure Name Company Selected Measure Name Fair Value Measurement [Domain] Fair Value Measurement [Domain] Occupancy, Furniture, Fixtures, and Equipment Occupancy, Furniture, Fixtures, And Equipment [Member] Occupancy, Furniture, Fixtures, and Equipment Total capital (to risk-weighted assets), Required for Capital Adequacy Purposes, Amount Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Operating cash flows for operating leases Operating Lease, Payments Deferred tax liabilities: Deferred Tax Liabilities, Net [Abstract] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] After ten years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 Loans greater than 90 days past due Financing Receivable, 90 Days or 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Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date Subsequent Events Subsequent Events, Policy [Policy Text Block] Income Taxes Income Tax Disclosure [Text Block] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Uninsured amount Cash, Uninsured Amount Operating lease liability Increase (Decrease) in Operating Lease Liability Document Type Document Type Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Name Outstanding Recovery, Individual Name Marketable Securities [Table] Marketable Securities [Table] Product and Service [Axis] Product and Service [Axis] Performance-Based Restricted Stock Units (PSUs) Performance-Based Restricted Stock Units (PSUs) [Member] Performance-Based Restricted Stock Units (PSUs) Gross proceeds from sale of loans Proceeds from Sale, Loan, Held-for-Sale Statistical Measurement [Axis] Statistical Measurement [Axis] Earnings on equity investments Earnings from equity investments Equity Method Investment, Realized Gain (Loss) on Disposal Post-ASC 326 Adoption Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Schedule of Interest Receivable and Other Assets Schedule of Other Assets [Table Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Other comprehensive income (loss) Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Share-Based Compensation, Percentile Position [Domain] Share-Based Compensation, Percentile Position [Domain] Share-Based Compensation, Percentile Position [Domain] IRC 45X Tax Credits Tax benefits related to IRC 45X Effective Income Tax Rate Reconciliation, Tax Credit, Energy-Related, Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Outstanding borrowings Less: outstanding borrowings Long-Term Line of Credit Temporary Administrative Office In San Francisco Temporary Administrative Office In San Francisco [Member] Temporary Administrative Office In San Francisco Related Party Transaction [Table] Related Party Transaction [Table] Diluted earnings per common share (in USD per share) Diluted EPS (in USD per share) Earnings Per Share, Diluted FDIC insurance Federal Deposit Insurance Corporation Premium Expense Other tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount After five years through ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Schedule of Realized Gain (Loss) Schedule of Realized Gain (Loss) [Table Text Block] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input 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of Activity in the Allowance For Loan Losses Schedule Of Activity In The Allowance For Loan Losses [Table Text Block] Schedule Of Activity In The Allowance For Loan Losses Receivables [Abstract] Receivables [Abstract] Undisbursed agricultural real estate loans Undisbursed Agricultural Real Estate Loans [Member] Undisbursed Agricultural Real Estate Loans [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Consolidated Entities [Domain] Consolidated Entities [Domain] Within one year Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Repayments Proceeds from Collection of Other Receivables Income tax expense at U.S. federal statutory rate Statutory U.S. federal income tax Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Loans Loans [Member] Watch Watch [Member] Watch [Member] Purchase of BOLI Payment to Acquire Life Insurance Policy, Investing 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Sale Of Securities This item represents the difference between the realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. 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