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issuance costs Accumulated Amortization, Debt Issuance Costs Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Net interest income after provision for loan losses Interest Income (Expense), after Provision for Loan Loss Document Transition Report Document Transition Report Summary of Age Analysis of Past Due Loans Financing Receivable, Past Due [Table Text Block] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] State taxes Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Held-to-maturity securities in a continuous loss position for twelve months or less Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Positions Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Positions Liabilities and 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[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 Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Interest-bearing transaction accounts Interest-bearing Domestic Deposit, Checking Other Other Commitments [Member] Other Commitments [Member] Minimum Minimum [Member] Gross realized gains Debt Securities, Available-for-sale, Realized Gain Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Number of correspondent banks Number Of Correspondent Banks Number Of Correspondent Banks Affiliated Entity Affiliated Entity [Member] Line of credit Long-term Line of Credit 2024 Lessee, Operating Lease, Liability, to be Paid, Year Two Financial liabilities: Financial Liabilities, Recorded At Amortized Cost [Abstract] Financial 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[Member] Leases Lessee, Leases [Policy Text Block] Loan-related expenses Loan-related Expenses Loan-related Expenses Stock offering (in shares) Stock Issued During Period, Shares, New Issues Number of reportable segments Number of Reportable Segments Letters of credit amount Letters of Credit Outstanding, Amount Operating lease liability Operating Lease, Liability Common stock, no par value; 100,000,000 shares authorized; 17,245,983 shares issued and outstanding at September 30, 2022; 17,224,848 shares issued and outstanding at December 31, 2021 Common Stock, Value, Issued Schedule of Interest-Bearing Deposits. Schedule of Interest-bearing deposits. [Table Text Block] Schedule of Interest-bearing deposits. 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development Real Estate Commercial Land And Development [Member] Real Estate Commercial Land and Development [Member] Deposits over five million, total Deposits, $5 Million Or More, Per Deposit Deposits, $5 Million Or More, Per Deposit Document Period End Date Document Period End Date Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Weighted average diluted common shares outstanding (in shares) Pro Forma Weighted Average Shares Outstanding, Diluted After one but within five years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year One through Five Entity Registrant Name Entity Registrant Name Net interest income Interest Income (Expense), Net Financing Receivable, Allowance for Credit Loss [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Doubtful Doubtful [Member] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] CALIFORNIA CALIFORNIA Sale of stock, consideration received on transaction Sale of Stock, Consideration Received on Transaction Financial Instrument [Axis] Financial Instrument [Axis] Common stock declared (in USD per share) Common Stock, Dividends, Per Share, Declared Cash dividends paid Payments of Dividends Service charges on deposit accounts Service Charges On Deposit Accounts Service Charges On Deposit Accounts Carrying Amounts Reported Value Measurement [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Equity [Abstract] Equity [Abstract] Net unrealized holding loss on securities available-for-sale during the period Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent Gross unrealized losses Debt Securities, Held-to-maturity, 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[Axis] After one but within five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Gross unrealized losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Total time deposits Interest-bearing domestic deposit, time deposits Interest-bearing Domestic Deposit, Time Deposits Net gain on sale of securities available-for-sale Debt Securities, Available-for-sale, Realized Gain (Loss) Stock compensation expense for employee and directors Share-based Payment Arrangement, Noncash Expense Variable Rate [Domain] Variable Rate [Domain] Other time accounts Interest Expense Domestic Deposit Liabilities, Other Time Deposit Unpaid Principal Balance, With an allowance recorded Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Cash dividends paid (in USD per share) Common Stock, Dividends, Per Share, Cash Paid Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Interest payable and other liabilities Interest Payable Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance [Abstract] Purchases of securities available-for-sale Payments to Acquire Debt Securities, Available-for-sale One Unsecured Federal Funds Line Of Credit One Unsecured Federal Funds Line Of Credit [Member] One Unsecured Federal Funds Line Of Credit Stock forfeitures (in shares) Stock Repurchased and Retired During Period, Shares Purchase of premises and equipment Payments to Acquire Property, Plant, and Equipment After one but within five years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Maximum Maximum [Member] Total liabilities Liabilities Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Award Type [Axis] Award Type [Axis] Number of branch offices Number Of Branch Offices Number Of Branch Offices Cash flows from financing activities: Net Cash 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Loss, Recovery Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Stock issued under stock award plans (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Taxable securities Interest Income, Securities, Operating, Taxable Line of credit outstanding Line of Credit Facility, Fair Value of Amount Outstanding Net gain on sale of securities available-for-sale Net Gain On Sale Of Securities Available-For-Sale 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. Income Statement [Abstract] Income Statement [Abstract] Amendment Flag Amendment Flag Consumer and other Consumer And Other [Member] Consumer And Other Add: Dilutive effects of assumed vesting of restricted stock (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Pro Forma Earnings, Shares Weighted Average Number Diluted Shares Outstanding Adjustment Pro Forma Earnings, Shares Fair Value Estimate of Fair Value Measurement [Member] Asset Class [Domain] Asset Class [Domain] Held-to-Maturity Debt Securities, Held-to-maturity, Maturity [Abstract] Total non-accrual loans Financing Receivable, Nonaccrual Fair Value Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] ICS I C S [Member] I C S [Member] Recently Issued Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] Interest Income Recognized Impaired Financing Receivable, Interest Income, Accrual Method [Abstract] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Other time accounts Interest-bearing Domestic Deposit, Other Time Deposit Provision for income taxes Provision for income taxes Income Tax Expense (Benefit) Other Commitments [Domain] Other Commitments [Domain] Unsecured Unsecured Debt [Member] Federal and state statutory rate (in percent) Effective Income Tax Rate Reconciliation, At Federal And State Statutory Income Tax Rate, Percent Effective Income Tax Rate Reconciliation, At Federal And State Statutory Income Tax Rate, Percent Equity Components [Axis] Equity Components [Axis] Weighted average basic common shares outstanding (in shares) Weighted Average Basic Shares Outstanding, Pro Forma Deposits Deposits, Fair Value Disclosure Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Federal Reserve Bank Branch [Axis] Federal Reserve Bank Branch [Axis] Federal Reserve Bank Branch Total expected operating lease payments Lessee, Operating Lease, 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Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability Unallocated Unallocated Financing Receivables [Member] FHLB advances Advances from Federal Home Loan Banks Entity Address, State or Province Entity Address, State or Province Income before provision for income taxes Net income before provision for income taxes - GAAP Net income before provision for income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Non-interest expense Noninterest Expense [Abstract] Accounting Standards Update [Domain] Accounting Standards Update [Domain] Subsidiary, Sale of Stock [Line Items] Subsidiary, Sale of Stock [Line Items] Federal Home Loan Bank of San Francisco (“FHLB”) stock FHLB Stock Federal Home Loan Bank Stock Recorded Investment, Total Impaired Financing Receivable, Recorded Investment Amortized Cost Securities available-for-sale, at 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after Valuation Allowance Debt Instrument [Line Items] Debt Instrument [Line Items] Earnings per common share: Earnings Per Share [Abstract] Derivatives – interest rate swap Derivative Asset Subordinated Notes Issued Sep 2017 Subordinated Notes Issued Sep 2017 [Member] Subordinated Notes Issued Sep 2017 Loans individually evaluated for impairment Financing Receivable, Individually Evaluated for Impairment Document Quarterly Report Document Quarterly Report Total securities in a loss position, unrealized loss Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Subordinated notes, net Subordinated Debt Purchase of BOLI Payment to Acquire Life Insurance Policy, Investing Activities Proceeds from sale of securities available-for-sale Sales proceeds Proceeds from Sale of Debt Securities, Available-for-sale Diluted EPS (actual/pro forma) (in USD per share) Diluted Earnings Per Share Pro Forma Deposits Deposits [Abstract] Other Commitments [Line Items] Other 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Amortization of subordinated notes issuance costs Amortization of Debt Issuance Costs Stock compensation expense (non-director and director) (in shares) APIC, Share-based Payment Arrangement, Increase for Cost Recognition, In Shares APIC, Share-based Payment Arrangement, Increase for Cost Recognition, In Shares Allowance for loan losses Less: Allowance for loan losses Beginning Balance Ending Balance Allowance for loan losses Loans and Leases Receivable, Allowance Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Number of shares sold (in shares) Sale of Stock, Number of Shares Issued in Transaction Change in deferred loan fees Increase (Decrease) in Deferred Leasing Fees Common Stock (in USD per share) Common Stock, Par or Stated Value Per Share Interest receivable and other assets Interest Receivable and Other Assets FRB pledged loans Federal Reserve Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged Federal Reserve Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged 2023 Time Deposit Maturities, Year One Net change in deposits Increase (Decrease) in Deposits Leases [Abstract] Entity Central Index Key Entity Central Index Key London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Time deposits in banks Time Deposits, at Carrying Value Security Exchange Name Security Exchange Name Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Non-interest Expense, Total Noninterest Expense Weighted average diluted common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted CDARS C D A R S [Member] C D A R S [Member] Fair Value, Recurring Fair Value, Recurring [Member] Over-Allotment Option Over-Allotment Option [Member] Income Taxes Income Tax Disclosure [Text Block] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Related 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[Axis] Measurement Basis [Axis] Less: Net deferred loan fees Loans and Leases Receivable, Deferred Income Officer Officer [Member] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Loans held for investment, net of allowance for loan losses Loans Receivable, Fair Value Disclosure Occupancy and equipment Occupancy, Net Cash and cash equivalents Cash And Cash Equivalents, Less Time Deposits, At Carrying Value Cash And Cash Equivalents, Less Time Deposits, At Carrying Value Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Net changes in: Increase (Decrease) in Operating Capital [Abstract] Marketable Securities [Line Items] Marketable Securities [Line Items] Stock issued under stock award plans Stock Issued During Period, Value, Employee Stock Purchase Plan Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Securities held-to-maturity, at amortized cost (fair value of $3,441 and $5,197 at September 30, 2022 and December 31, 2021, respectively) Securities held-to-maturity, at amortized cost Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss Shares vested (in USD per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Nature of Operations and Principles of Consolidation Consolidation, Policy [Policy Text Block] After five years through ten years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year Five through Ten Schedule of Composition of Network Deposits Schedule of Composition of Network Deposits [Table Text Block] Schedule of Composition of Network Deposits Schedule of Other Commitments Other Commitments [Table Text Block] Operating lease liabilities recorded in conjunction with adoption of ASC 842 Lease Obligation Incurred Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Average Recorded Investment, Total Impaired Financing Receivable, Average Recorded Investment Entity Address, Postal Zip Code Entity Address, Postal Zip Code Loans between 60-89 days past due Financing Receivable, before Allowance for Credit Loss FHLB advances Proceeds from FHLBank Borrowings, Financing Activities Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Title of 12(b) Security Title of 12(b) Security After ten years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 Statement [Table] Statement [Table] Loans held for sale Loans Held-for-sale, Fair Value Disclosure Advertising and promotional Advertising Expense 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 Other Commitments [Axis] Other Commitments [Axis] Statistical Measurement [Axis] Statistical Measurement [Axis] Reclassification of retained deficit Adjustments to Additional Paid in Capital, Other Interest rate swap Derivative Liability, Fair Value, Gross Liability Less: Actual/pro forma provision for income taxes Actual/pro forma provision for income taxes Pro Forma Provision For Income Taxes Pro Forma Provision For Income Taxes Subsequent Event Subsequent Event [Member] Statutory U.S. federal income tax Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Cover [Abstract] Cover [Abstract] Interest Income Recognized, With an allowance recorded Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method Total loans Financing Receivable, Allowance for Credit Loss After ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Liabilities: Liabilities, Total [Member] Less than twelve continuous months, unrealized loss Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Total pledged investment securities Pledged Assets Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Residential construction Real Estate Residential Construction Loans [Member] Real Estate Residential Construction Loans [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Entity Controlled by Member of Board of Directors and Three Shareholders Entity Controlled by Member of Board of Directors and Three Shareholders [Member] Entity Controlled by Member of Board of Directors and Three Shareholders [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 Within one year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Operating lease cost Operating Lease, Cost Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Gain on sale of loans Gain (Loss) on Sales of Loans, Net Rent expense Operating Leases, Rent Expense Real estate related loans percentage Real Estate Related Loans Percentage Real Estate Related Loans Percentage Executive Officer Executive Officer [Member] Twelve continuous months or longer, unrealized loss Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Deferred tax provision Deferred Income Tax Expense (Benefit)