Equity Components [Axis] Common Stock [Member] Retained Earnings [Member] AOCI Attributable to Parent [Member] Sale of Stock [Axis] IPO [Member] Restructuring Type [Axis] Salaries And Employee Benefit [Member] Long-Lived Tangible Asset [Axis] Equipment [Member] Statistical Measurement [Axis] Minimum [Member] Maximum [Member] Furniture and Fixtures [Member] Land Improvements [Member] Automobiles [Member] Financial Instrument [Axis] US States and Political Subdivisions Debt Securities [Member] US Government Agencies Debt Securities [Member] Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Collateralized Debt Obligations [Member] Corporate Debt Securities [Member] US Treasury Securities [Member] Geographical [Axis] California [Member] Class of Financing Receivable [Axis] Commercial Real Estate [Member] Real Estate Commercial Land and Development [Member] Real Estate Commercial Construction Loans [Member] Real Estate Residential Construction Loans [Member] Residential Real Estate [Member] Real Estate Farmland [Member] Secured Debt [Member] Unsecured Debt [Member] Paycheck Protection Program ("PPP") [Member] Consumer Portfolio Segment [Member] Federal Home Loan Bank Branch [Axis] Federal Home Loan Bank of San Francisco [Member] Internal Credit Assessment [Axis] Pass [Member] Watch [Member] Substandard [Member] Doubtful [Member] Financial Asset, Aging [Axis] Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Financial Asset, Past Due [Member] Financial Asset, Not Past Due [Member] Unallocated Financing Receivables [Member] Product and Service [Axis] CDARS [Member] ICS [Member] Long-term Debt, Type [Axis] Subordinated Debt [Member] Pledging Purpose [Axis] Secure State Of California Deposits [Member] Secure Local Agency Deposit [Member] Short-term Debt, Type [Axis] Unsecured Federal Funds Line Of Credit [Member] Federal Reserve Discount Window Award Type [Axis] Restricted Stock [Member] Liability Class [Axis] Commercial Lines of Credit [Member] Undisbursed Construction Loans [Member] Undisbursed Commercial Real Estate Loans [Member] Agricultural Lines of Credit [Member] Undisbursed Agricultural Real Estate Loans [Member] Other Commitments [Member] Consolidated Entities [Axis] Subsidiaries [Member] Concentration Risk Benchmark [Axis] Assets, Total [Member] Measurement Basis [Axis] Estimate of Fair Value Measurement [Member] Measurement Frequency [Axis] Fair Value, Recurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Interest Rate Swap [Member] Liabilities, Total [Member] Reported Value Measurement [Member] Parent Company [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Cover [Abstract] Document Type Amendment Flag Amendment Description Document Registration Statement Document Annual Report Document Quarterly Report Document Transition Report Document Shell Company Report Document Shell Company Event Date Document Period Start Date Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Current Fiscal Year End Date Entity File Number Entity Registrant Name Entity Central Index Key Entity Primary SIC Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, State or Province Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Extension Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name Title of 12(g) Security Security Reporting Obligation Annual Information Form Audited Annual Financial Statements Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Elected Not To Use the Extended Transition Period Document Accounting Standard Other Reporting Standard Item Number Entity Shell Company Entity Public Float Entity Bankruptcy Proceedings, Reporting Current Entity Common Stock, Shares Outstanding Documents Incorporated by Reference [Text Block] Auditor Name Auditor Location Auditor Firm ID Statement of Financial Position [Abstract] ASSETS Cash and due from financial institutions Interest-bearing deposits in banks Cash and cash equivalents Time deposits in banks Securities available-for-sale, at fair value Securities held-to-maturity, at amortized cost (fair value of $5,197 and $8,755 at December 31, 2021 and 2020, respectively) Loans held for sale Loans held for investment, net of allowance for loan losses of $23,243 and $22,189 at December 31, 2021 and 2020, respectively Federal Home Loan Bank of San Francisco (“FHLB”) stock Premises and equipment, net Bank-owned life insurance (“BOLI”) Interest receivable and other assets Assets LIABILITIES AND SHAREHOLDERS’ EQUITY Deposits Non-interest-bearing Interest-bearing Total deposits Subordinated notes, net Interest payable and other liabilities Total liabilities Shareholders’ equity Preferred stock, no par value; 10,000,000 shares authorized; zero issued and outstanding at December 31, 2021 and 2020, respectively Common stock, no par value; 100,000,000 shares authorized; 17,224,848 shares issued and outstanding at December 31, 2021; 11,000,273 shares issued and outstanding at December 31, 2020 Retained earnings Accumulated other comprehensive (loss) income, net Total shareholders’ equity Liabilities and Shareholders’ Equity Debt Securities, Held-to-maturity, Fair Value Loans and Leases Receivable, Allowance Preferred Stock, Par or Stated Value Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Income Statement [Abstract] Interest and dividend income Loans, including fees Taxable securities Nontaxable securities Interest-bearing deposits in other banks Interest and dividend income Interest expense Deposits Subordinated notes Interest expense Net interest income Provision for loan losses Net interest income after provision for loan losses Non-interest income Service charges on deposit accounts Net gain on sale of securities Gain on sale of loans Loan-related fees FHLB stock dividends Earnings on BOLI Other Noninterest Income Non-interest expense Salaries and employee benefits Occupancy and equipment Data processing and software Federal Deposit Insurance Corporation (“FDIC”) insurance Professional services Advertising and promotional Loan-related expenses Other operating expenses Noninterest expense Income before provision for income taxes Provision for income taxes Net income Basic earnings per share Diluted earnings per share Net unrealized holding (loss) gain on securities available-for-sale during the period Reclassification adjustment for net realized gains included in net income Income tax (benefit) expense related to other comprehensive (loss) income Other comprehensive (loss) income Total comprehensive income Statement [Table] Statement [Line Items] Beginning balance, value Beginning Balance, Shares Other comprehensive loss Stock offering Stock offering, Shares Stock issued under stock award plans Stock issued under stock award plans, Shares Stock compensation expense Director stock compensation expense Director stock compensation expense, Shares Restricted stock forfeitures Stock forfeitures, Shares Reclassification of retained deficit Common stock issued Common stock issued, Shares Cash dividends paid ($4.55 per share) Ending balance, value Ending Balance, Shares Statement of Stockholders' Equity [Abstract] Common Stock, Dividends, Per Share, Cash Paid Statement of Cash Flows [Abstract] Cash flows from operating activities: Adjustments to reconcile net income to net cash provided by operating activities: Loans originated for sale Gain on sale of loans Proceeds from sale of loans Net gain on sale of securities Earnings on BOLI Director stock compensation expense Change in deferred loan fees Amortization and accretion of security premiums and discounts Amortization of subordinated notes issuance costs Depreciation and amortization Deferred taxes Net changes in: Interest receivable and other assets Interest payable and other liabilities Net cash provided by operating activities Cash flows from investing activities: Proceeds from sale of securities available-for-sale Maturities, prepayments, and calls of securities available-for-sale Purchases of securities available-for-sale Increase (decrease) in time deposits in banks Loan originations, net of repayments Purchase of premises and equipment Purchase of FHLB stock Purchase of BOLI Net cash used in investing activities Cash flows from financing activities: Net change in deposits Proceeds from issuance of common stock FHLB repayment Cash dividends paid Net cash provided by financing activities Net change in cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental disclosure of cash flow information: Interest paid Income taxes paid Supplemental disclosure of noncash investing and financing activities: Transfer from loans held for investment to loans held for sale Unrealized (loss) gain on securities Disposal of premises and equipment Reclassification of retained deficit Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation Accounting Changes and Error Corrections [Abstract] Recently Issued Accounting Standards Investments, Debt and Equity Securities [Abstract] Investment Securities Receivables [Abstract] Loans and Allowance for Loan Losses Property, Plant and Equipment [Abstract] Premises and Equipment, Net Investments, All Other Investments [Abstract] Bank-owned Life Insurance Interest Receivable And Other Assets Interest Receivable and Other Assets Interest-bearing Deposits Interest-Bearing Deposits Debt Disclosure [Abstract] Long Term Debt and Other Borrowings Retirement Benefits [Abstract] 401(k) Benefit Plan Income Tax Disclosure [Abstract] Income Taxes Related Party Transactions [Abstract] Related Party Transactions Equity Incentive Plan Equity [Abstract] Shareholders’ Equity Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Banking and Thrift Disclosure [Text Block] Capital Requirements and Restrictions on Retained Earnings Fair Value Disclosures [Abstract] Fair Value of Assets and Liabilities Condensed Financial Information Disclosure [Abstract] Parent Company Only Condensed Financial Information Subsequent Events [Abstract] Subsequent Events Nature of Operations and Principles of Consolidation Basis of Financial Statement Presentation and Consolidation Use of Estimates Cash and Cash Equivalents Securities Available-for-Sale Securities Held-to-Maturity Loans and Allowance for Loan Losses Federal Home Loan Bank Stock Premises and Equipment Other Real Estate BOLI Long-Term Assets Equity Investments Loss Contingencies Transfers of Financial Assets Loan Commitments and Related Financial Instruments Stock-Based Compensation Supplemental Executive Retirement Plan Income Taxes Derivatives Comprehensive Income or Loss Earnings Per Share (“EPS”) Subordinated Notes Fair Value of Financial Instruments Fair Value Measurements Subsequent Events Reclassifications Schedule of Useful Life of Premises and Equipment Basis of Presentation Schedule of Earning Per Share Basis of Presentation (Details 2) Schedule of Pro forma Earning Per Share Basis of Presentation (Details 3) Schedule of Securities Held-To-Maturity Investment Securities Schedule of Securities Available-for-Sale Investment Securities (Details 2) Schedule of Investment Securities by Contractual Maturity Investment Securities (Details 3) Schedule of Investment Securities Available-for-Sale Gross Realized Gain and Losses Investment Securities (Details 4) Pledged investment securities Investment Securities (Details 5) The following table details the gross unrealized losses and fair values aggregated by investment category and length of time that individual available-for-sale securities have been in a continuous unrealized loss position at December 31, 2021 and 2020: Investment Securities (Details 6) Schedule of Loan Portfolio Loans and Allowance for Loan Losses Schedule of Loan by credit quality [custom:DisclosureLoansAndAllowanceForLoanLossesDetails2Abstract] Schedule of Age Analysis of Past Due Loan [custom:DisclosureLoansAndAllowanceForLoanLossesDetails3Abstract] Schedule of Impaired Loans by class of Loans Loans and Allowance for Loan Losses (Details 4) Schedule of Nonaccural Loans, segregated by class Loans and Allowance for Loan Losses (Details 5) Schedule of activity in the allowance for loan losses [custom:DisclosureLoansAndAllowanceForLoanLossesDetails6Abstract] Schedule of Premises and Equipment Premises and Equipment, Net Interest receivable and other assets Interest Receivable and Other Assets Schedule of Interest-bearing deposits Interest Bearing Deposits Schedule of Maturities of Time Deposits Interest Bearing Deposits (Details 2) Schedule of Composition of Network Deposits Interest Bearing Deposits (Details 3) Interest expense recognized on interest-bearing deposits Interest Bearing Deposits (Details 4) The provision for income tax Income Taxes The components of the consolidated provision for income taxes Income Taxes (Details 2) Deferred tax assets and liabilities Income Taxes (Details 3) Schedule of Related Party Transactions Related Party Transactions table summarizes information about unvested restricted shares Equity Incentive Plan Schedule of Unfunded Loan Commitments and Standby Letter of Credit Commitments and Contingencies Schedule of Future Minimum Lease Payment and Weighted Average Remaining Lease Commitments and Contingencies (Details 2) The Company’s and the Bank’s actual capital amounts and ratios as of December 31, 2021 and 2020 are presented in the following table: Capital Requirements and Restrictions on Retained Earnings Schedule of Fair Value Assets and Liabilities on Recurring Basis Fair Value of Assets and Liabilities Schedule of fair value estimates for financial instruments Fair Value of Assets and Liabilities (Details 2) CONDENSED BALANCE SHEETS Parent Company Only Condensed Financial Information CONDENSED STATEMENTS OF INCOME Parent Company Only Condensed Financial Information (Details 2) CONDENSED STATEMENTS OF CASH FLOWS Parent Company Only Condensed Financial Information (Details 3) Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Useful Life Weighted average basic common shares outstanding Add: Dilutive effects of assumed vesting of restricted stock Weighted average diluted common shares outstanding Income per common share: Basic EPS Diluted EPS Net income before provision for income taxes - GAAP Actual/pro forma provision for income taxes Actual/pro forma net income Weighted average basic common shares outstanding Add: Dilutive effects of assumed vesting of restricted stock Weighted average diluted common shares outstanding Income per common share: Basic EPS Diluted EPS Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsidiary, Sale of Stock [Line Items] Sale of Stock, Description of Transaction Sale of Stock, Number of Shares Issued in Transaction Sale of Stock, Price Per Share Sale of Stock, Consideration Received Per Transaction Sale of Stock, Consideration Received on Transaction Proceeds from Loan Originations Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance Marketable Securities [Table] Marketable Securities [Line Items] Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss Held to Maturity Securities Gross Unrealized Gains Held to Maturity Securities Gross Unrealized Loss Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities Available-for-sale Securities, Gross Unrealized Gain Available-for-sale Securities, Gross Unrealized Loss Available-for-sale Securities, Gross Unrealized Loss Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Year One Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year One through Five Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year Five through Ten Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Sales proceeds Gross realized gains Pledged Assets Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss No. Of Securities, With Gross Unrealized Losses No. Of Securities, With Gross Unrealized Losses, Less Than 12 Months No. Of Securities, With Gross Unrealized Losses, More Than 12 Months Federal Home Loan Bank Stock FHLB Stock Dividends Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Line Items] Consumer and other Less: Net deferred loan fees Less: Allowance for loan losses Total loans, net Total Total loans Impaired Financing Receivable, Recorded Investment Impaired Financing Receivable, Unpaid Principal Balance Impaired Financing Receivable, Related Allowance Impaired Financing Receivable, Average Recorded Investment Impaired Financing Receivable, Interest Income, Accrual Method Total non-accrual loans Beginning balance Charge-offs Recoveries Provision (recapture) Ending balance Loans individually evaluated for impairment Loans collectively evaluated for impairment Ending balance Ending balance individually evaluated for impairment Ending balance collectively evaluated for impairment Principal Amount Outstanding of Loans Held-in-portfolio Financing Receivable, Nonaccrual, Interest Income Long-term Line of Credit Pledged Financial Instruments, Not Separately Reported, Securities for Federal Home Loan Bank Furniture, fixtures, and equipment Tenant improvements Premises and Equipment, Gross Less: Accumulated depreciation and amortization Life Settlement Contracts, Fair Value Method, Face Value Bank Owned Life Insurance Bank Owned Life Insurance Income Interest receivable Equity investments Servicing assets Other assets Interest Receivable and Other Assets Interest Bearing Deposits Savings Money market Interest checking accounts Time, $250 or more Other time Total interest-bearing deposits 2022 2023 2024 2025 2026 Total time deposits Total network deposits Savings Money market Interest checking accounts Time, $250 or more Other time Total interest expense on interest-bearing deposits Interest-bearing Domestic Deposit, Time Deposits Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] PledgingPurposeAxis [Axis] Subordinated Debt Debt Issuance Costs, Net Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Remaining Borrowing Capacity Defined Contribution Plan, Employer Discretionary Contribution Amount Statutory U.S. federal income tax Benefit of S Corporation status State taxes Deferred tax asset adjustment Other Current tax expense Federal State Current Deferred tax benefit Federal State Deferred Provision for income taxes Deferred tax assets: Allowance for credit losses Supplemental employee retirement plan Gain on available-for-sale assets Net unrealized loss on securities available-for-sale Accrual to cash adjustment Depreciation Other Deferred tax assets Deferred tax liabilities: Deferred loan fees Net unrealized gain on securities available-for-sale State tax Depreciation Other Deferred tax liabilities Net deferred tax asset Deferred Tax Assets, Net of Valuation Allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Beginning balance New loans or advance Loans issued in prior years to new related parties Repayments Ending balance Due to Related Parties Property Management Fees Expenses Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Beginning of the period balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance Shares granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Shares vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Shares forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value End of the period balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance Employee Stock Ownership Plan (ESOP), Number of Allocated Shares Dividends, Common Stock, Cash Aggregate Distribution for AAA Payout Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Total commitments and standby letters of credit 2022 2023 2024 2025 2026 Thereafter Total Operating Lease, Weighted Average Remaining Lease Term Number of Deposits [custom:DepositsOverFiveMillion-0] [custom:PercentageOfDepositsOverFiveMillionToDeposits-0] Largest Single Deposit Percentage of Largest Single Deposit to Total Deposits Cash, Uninsured Amount Operating Leases, Rent Expense Schedule of Federal Home Loan Bank Advances, by Branch of FHLB Bank [Table] Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] Banking Regulation, Total Capital, Actual Banking Regulation, Total Risk-Based Capital Ratio, Actual Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum Banking Regulation, Tier One Risk-Based Capital, Actual Banking Regulation, Tier One Risk-Based Capital Ratio, Actual Banking Regulation, Tier One Risk-Based Capital, Capital Adequacy, Minimum Banking Regulation, Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum Banking Regulation, Common Equity Tier One Risk-Based Capital, Actual Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Actual Banking Regulation, Common Equity Tier One Risk-Based Capital, Capital Adequacy, Minimum Banking Regulation, Common Equity Tier One Risk Based Capital Ratio, Capital Adequacy, Minimum Banking Regulation, Tier One Leverage Capital, Actual Banking Regulation, Tier One Leverage Capital Ratio, Capital Adequacy, Minimum Banking Regulation, Tier One Leverage Capital, Capital Adequacy, Minimum Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum Banking Regulation, Tier One Risk-Based Capital, Well Capitalized, Minimum Banking Regulation, Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum Banking Regulation, Common Equity Tier One Risk-Based Capital, Well Capitalized, Minimum Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum Banking Regulation, Tier One Leverage Capital, Well Capitalized, Minimum Banking Regulation, Tier One Leverage Capital Ratio, Well Capitalized, Minimum Fair Value, Recurring and Nonrecurring [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Debt Securities, Available-for-sale Fair Value, by Balance Sheet Grouping [Table] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Time Deposit at Fair Value Disclosure Securities available-for-sale Securities held-to-maturity Loans Held-for-sale, Fair Value Disclosure Loans held for investment Loans Receivable, Fair Value Disclosure FHLB stock and other investments Interest receivable Accounts Receivable, Fair Value Disclosure Interest rate swap Interest Rate Swap, Fair Value Deposits Deposits, Fair Value Disclosure Interest payable Accounts Payable, Fair Value Disclosure Interest rate swap Interest Rate Swap, Fair Value Subordinated notes Subordinated Debt Obligations, Fair Value Disclosure Condensed Financial Statements [Table] Condensed Financial Statements, Captions [Line Items] Investment in banking subsidiary Shareholders’ equity Dividends from banking subsidiary Interest expense Other expense Income tax benefit Equity in undistributed banking subsidiary income Stock issued to directors Equity in undistributed banking subsidiary income Change in other assets Change in accrued expenses and other liabilities Investment in subsidiary Proceeds from sale of stock Cash dividends paid Subsequent Event [Table] Subsequent Event [Line Items] Common Stock, Dividends, Per Share, Declared Dividends Payable, Date of Record Dividends, Common Stock California [Member] Financial asset more than 29 days past due but fewer than 90 days past due. Service charges on deposit accounts Loan-Related fees Time Deposit at Fair Value Disclosure 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. Assets Deposits [Default Label] Liabilities Stockholders' Equity Attributable to Parent Liabilities and Equity Interest Expense, Deposits Interest Expense Interest Income (Expense), Net Interest Income (Expense), after Provision for Loan Loss ReclassificationAdjustmentForNetRealizedGainsIncludedInNetIncome Reclassification from AOCI, Current Period, Tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Shares, Outstanding Payments for Origination and Purchases of Loans Held-for-sale Gain (Loss) on Sales of Loans, Net Available-for-sale Securities, Transfers to Trading, Gains (Losses) DirectorStockCompensationExpense Increase (Decrease) in Accrued Interest Receivable, Net Increase (Decrease) in Interest Payable, Net Payments to Acquire Available-for-sale Securities Payments to Acquire Property, Plant, and Equipment Payments for (Proceeds from) Federal Home Loan Bank Stock Payment to Acquire Life Insurance Policy, Investing Activities Payments of FHLBank Borrowings, Financing Activities ReclassificationOfRetainedDeficits Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Income Tax, Policy [Policy Text Block] Subsequent Events, Policy [Policy Text Block] DisclosureBasisOfPresentationDetailsAbstract DisclosureInvestmentSecuritiesDetailsAbstract DisclosureLoansAndAllowanceForLoanLossesDetailsAbstract DisclosurePremisesAndEquipmentDetailsAbstract Schedule of Other Assets [Table Text Block] DisclosureInterestReceivableAndOtherAssetsDetailsAbstract DisclosureIncomeTaxesDetailsAbstract DisclosureRelatedPartyTransactionsDetailsAbstract DisclosureEquityIncentivePlanDetailsAbstract DisclosureCommitmentsAndContingenciesDetailsAbstract DisclosureCapitalRequirementsAndRestrictionsOnRetainedEarningsDetailsAbstract DisclosureFairValueOfAssetsAndLiabilitiesDetailsAbstract DisclosureParentCompanyOnlyCondensedFinancialInformationDetailsAbstract ProFormaProvisionForIncomeTaxes Weighted Average Basic Shares Outstanding, Pro Forma WeightedAverageNumberDilutedSharesOutstandingAdjustmentProformaEarningPerShare Pro Forma Weighted Average Shares Outstanding, Diluted Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Financing Receivable, Allowance for Credit Loss, Writeoff Interest Expense Domestic Deposit Liabilities, Savings Interest Expense Domestic Deposit Liabilities, Money Market Interest Expense Domestic Deposit Liabilities, Checking InterestExpenseDomesticDepositLiabilitiesTimeDeposit250000OrMore Interest Expense Domestic Deposit Liabilities, Other Time Deposit Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Current Federal, State and Local, Tax Expense (Benefit) Deferred Federal Income Tax Expense (Benefit) Deferred State and Local Income Tax Expense (Benefit) Deferred Federal, State and Local, Tax Expense (Benefit) Deferred Tax Assets, Other Deferred Tax Assets, Gross DeferredTaxLiabilitiesDepreciation Deferred Tax Liabilities, Other Deferred Tax Liabilities, Gross Due from Related Parties Repayments of Related Party Debt Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Operating Leases, Future Minimum Payments Receivable, Current Operating Leases, Future Minimum Payments Receivable, in Two Years Operating Leases, Future Minimum Payments Receivable, in Three Years Operating Leases, Future Minimum Payments Receivable, in Four Years Operating Leases, Future Minimum Payments Receivable, in Five Years Interest Rate Swap Interest Rate Swap, Fair Value [Default Label]