Total loans held-for-investment, gross Total Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process Increase in BFG investment in exchange for shares of the Company’s common stock Other Significant Noncash Transaction, Value of Consideration Given Change in fair value of BFG Unrealized Gain (Loss) on Investments Statistical Measurement [Domain] Statistical Measurement [Domain] Schedule of Debt Securities, Available-for-Sale Debt Securities, Available-for-Sale [Table Text Block] Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract] Restricted cash Restricted Cash, Current Award Timing Predetermined Award Timing Predetermined [Flag] Related Party Transaction [Axis] Related Party Transaction [Axis] Balance at beginning of period Balance at end of period Valuation Allowance for Impairment of Recognized Servicing Assets, Balance Interest income Financing Receivable, Nonaccrual, Interest Income Tax effect OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Entity File Number Entity File Number Additional Paid-In Capital Additional Paid-in Capital [Member] Interest rate swaps Interest Rate Swap [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Watch Watch [Member] Watch Tabular List, Table Tabular List [Table Text Block] Numerator: Earnings Per Share, Basic [Abstract] Total, fair value Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value Recently Adopted Accounting Pronouncements and Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Nonaccrual loans with no ACL Nonaccrual Loans with no ACL Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Pledged Status [Axis] Pledged Status [Axis] Schedule of Estimated Fair Value and Carrying Value of Financial Instrument Fair Value, by Balance Sheet Grouping [Table Text Block] Restricted stock surrendered for tax withholding upon vesting Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Unrealized Loss Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Basis [Axis] Measurement Basis [Axis] Earnings per share, basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] 12 Months or more, fair value Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Related Party Transactions Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Financial liabilities: Liabilities, Fair Value Disclosure [Abstract] Credit enhancement income Credit Enhancement Income Credit Enhancement Income Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Held-to-maturity: Debt Securities, Held-to-Maturity, Maturity [Abstract] Recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Discount rate Measurement Input, Discount Rate [Member] Other comprehensive loss, net of tax Other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax Weighted average prepayment rate Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed Change in fair value on investment in BFG Fair Value, Option, Changes in Fair Value, Gain (Loss) Accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Total deposits Deposits, Fair Value Disclosure Total allowance for credit losses on financing receivables Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] Unrealized Gain Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Measurement Input Type [Domain] Measurement Input Type [Domain] Adjustment to Compensation, Amount Adjustment to Compensation Amount Realized gains or losses on investment securities Debt Security, Held-to-Maturity, Sold, Realized Gain (Loss) Collateralized mortgage obligations Collateralized Mortgage Obligations [Member] Total allowance for credit losses Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest and Off-Balance-Sheet, Credit Loss, Liability [Roll Forward] Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest and Off-Balance-Sheet, Credit Loss, Liability Schedule of Assets Measured at Fair Value on a Nonrecurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Other assets Increase (Decrease) in Other Operating Assets Principal Deferment (Months) Financing Receivable, Modified, Payment Deferral, Period Consolidation Consolidation, Policy [Policy Text Block] Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Lack of marketability discount Measurement Input, Discount for Lack of Marketability [Member] Charge-Offs Writeoff Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Stock options Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Cash paid for income taxes Income Taxes Paid Commercial leases Lease financing receivables Finance Leases Portfolio Segment [Member] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total shareholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Measurement Frequency [Axis] Measurement Frequency [Axis] Debt Securities, Available-for-Sale [Table] Debt Securities, Available-for-Sale [Table] Insider Trading Policies and Procedures [Line Items] Stock-based compensation expense Share-Based Payment Arrangement, Expense Impairment (recovery) of SBA servicing asset Small Business Administration, Servicing Asset, Impairment (Recovery) The amount of impairment or (recovery) due to changes in the fair value 2019 Plan and 2016 Plan 2019 Plan and 2016 Plan [Member] A share-based compensation plan approved by the Board of Directors and the Shareholders in 2019 and 2016. Common stock, shares authorized (in shares) Common Stock, Shares Authorized Hedging Designation [Domain] Hedging Designation [Domain] BFG ownership purchase (in shares) Stock Issued During Period, Shares, New Issues Provision for credit losses Provision for (Reversal of) Credit Losses Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Expense (Reversal), Including Unfunded Commitments Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Expense (Reversal), Including Unfunded Commitments Strategic Program loans held-for-sale, at lower of cost or fair value Strategic Program loans held-for-sale Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance Cash held in reserve by strategic programs Strategic Program Deposits, Uninsured Strategic Program Deposits, Uninsured Total liabilities and shareholders’ equity Liabilities and Equity Fair Value, Recurring Fair Value, Recurring [Member] Stock Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Schedule of SBA Servicing Asset Activity Servicing Asset at Amortized Cost [Table Text Block] Well-Capitalized Requirement Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities and Equity [Abstract] 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] Assets: Offsetting Derivative Assets [Abstract] Maximum Maximum [Member] Options vested and exercisable, end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Federal Home Loan Bank Secured Line of Credit Federal Home Loan Bank Secured Line of Credit [Member] This item represents federal home loan bank secured line of credit. Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Accounting Policies [Abstract] Accounting Policies [Abstract] Total, fair value Debt Securities, Available-for-Sale, Unrealized Loss Position Restricted Stock Restricted shares Restricted Stock [Member] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Fair value of restricted stock vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Current fiscal year Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Well-Capitalized Requirement Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum Operating lease liabilities Operating Lease, Liability Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount 90 Days and Greater Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Liabilities Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Actual Banking Regulation, Tier 1 Leverage Capital Ratio, Actual Loan default on commercial real estate owner occupied Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default Impairment Valuation Allowance for Impairment of Recognized Servicing Assets, Additions for Expenses Equity Method Investments [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Capital Requirements Regulatory Capital Requirements under Banking Regulations [Text Block] Number of individuals affected by data breach Loss Contingency, Number of Individuals Affected by Data Breach Loss Contingency, Number of Individuals Affected by Data Breach Two years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Prior, Writeoff Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Total interest expense Interest Expense, Operating Premises and equipment, net Property, Plant, and Equipment, Excluding Lessor Asset under Operating Lease, after Accumulated Depreciation Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Measurement Input Type [Axis] Measurement Input Type [Axis] Recovery Valuation Allowance for Impairment of Recognized Servicing Assets, Deductions for Recoveries Due in one year or less Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Year One Name Measure Name Loan type (as a percent) Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage Due in one year or less Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Schedule of Stock-Based Compensation Expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Net increase in deposits Increase (Decrease) in Deposits Allowance for Credit Losses Financing Receivable, Allowance for Credit Loss, Individually Evaluated Deferred income taxes, net Deferred Income Tax Liabilities, Net Document Fiscal Period Focus Document Fiscal Period Focus Individually evaluated loans, measurement input Impaired Loans Measurement Input Value of input used to measure collateral-dependent impaired loans. Schedule of Fair Value and Unrealized Losses of Securities in Unrealized Loss Position Debt Securities, Unrealized Loss Position, Fair Value [Table Text Block] Debt Securities, Unrealized Loss Position, Fair Value Award Timing Method Award Timing Method [Text Block] Nonaccrual Loans with ACL Financing Receivable, Excluding Accrued Interest, Nonaccrual Accumulated depreciation Property, Plant, and Equipment, Lessor Asset under Operating Lease, Accumulated Depreciation Award Type [Axis] Award Type [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Total assets Assets Purchase of assets subject to operating leases Payments to Acquire Equipment on Lease Investment, Name [Domain] Investment, Name [Domain] Trading Symbol Trading Symbol Additions to servicing asset Additions to Servicing Assets Vested (in dollars 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 Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Not Rated Not Rated [Member] Not Rated Stock-based compensation expense (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Entity Address, City or Town Entity Address, City or Town Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Receivable Type [Axis] Receivable Type [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Financial assets: Assets, Fair Value Disclosure [Abstract] Loans pledged to secure FHLB line of credit Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged Entity Emerging Growth Company Entity Emerging Growth Company Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Estimated Fair Value Estimated fair value Investment securities held-to-maturity Debt Securities, Held-to-Maturity, Fair Value Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Schedule of Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Values of Held-to-Maturity Securities Debt Securities, Held-to-Maturity [Table Text Block] Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Less than 12 months, unrealized losses Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Debt Securities, Available-for-Sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Outstanding, beginning of year (in shares) Outstanding, end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number 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] Level 2 Fair Value, Inputs, Level 2 [Member] Due after five years through ten years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items] Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total non-interest income Noninterest Income Related Party Related Party [Member] Common stock, shares, outstanding (in shares) Common Stock, Shares, Outstanding Asset Pledged as Collateral Asset Pledged as Collateral [Member] Gain on sale of loans, net Gain (Loss) on Sales of Loans, Net Investment securities held-to-maturity, net of allowance for credit losses of $0, (fair value of $10.0 million and $11.1 million, respectively) Debt securities, amortized cost Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss Plan Name [Axis] Plan Name [Axis] Unrealized Loss Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss PEO PEO [Member] Non-interest expense Noninterest Expense [Abstract] Cash and due from banks Cash and Due from Banks Actual Banking Regulation, Tier 1 Leverage Capital, Actual Schedule of Amortized Cost and Estimated Market Value of Debt Securities Investments Classified by Contractual Maturity Date [Table Text Block] Investment, measurement input Equity Method Investment, Measurement Input Value of input used to measure equity method investment. Net changes in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Stock options exercised, net Stock Issued During Period, Value, Stock Options Exercised Dividends 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] Derivative Instruments and Hedging Activities Disclosure [Abstract] Retained Earnings Retained Earnings [Member] Due after one year through five years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Pledged Status [Domain] Pledged Status [Domain] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Share-Based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Cash, cash equivalents and restricted cash, beginning of the period Cash, cash equivalents and restricted cash, end of the period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Interest on securities Interest and Dividend Income, Securities, Operating Income Statement [Abstract] Income Statement [Abstract] Derivative asset Derivative Asset Provision for income taxes Income tax expense Income Tax Expense (Benefit) 12 months or more, fair value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Other comprehensive income (loss) before reclassifications and income tax OCI, before Reclassifications, before Tax, Attributable to Parent Sale of Stock [Domain] Sale of Stock [Domain] Other assets Other Assets Fair Value Fair Value, Nonrecurring [Member] Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Accrued interest payable Increase (Decrease) in Interest Payable, Net Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Modified [Table] Provision for (Reversal of) Credit Losses Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Available-for-sale: Debt Securities, Available-for-Sale [Abstract] Hedging Relationship [Axis] Hedging Relationship [Axis] Due in one year or less Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Notional Amount Derivative, Notional Amount Revolving Loans Financing Receivable, Excluding Accrued Interest, Revolving Noncash operating lease cost Operating Lease, Right-of-Use Asset, Periodic Reduction Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Proceeds from exercise of stock options Proceeds from Stock Options Exercised City Area Code City Area Code Schedule of Changes in Allowance for Loan Losses Financing Receivable, Allowance for Credit Loss [Table Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Revolving, open-end lines of credit Unused lines of Credit [Member] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Weighted average term (in years) Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Weighted Average Life Other miscellaneous income Noninterest Income, Other Operating Income Warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants Unvested as of beginning of year (in shares) Unvested as of end of year (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Investment in FHLB stock Investment in Federal Home Loan Bank Stock, Fair Value Disclosure Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] SBA Loans Insured or Guaranteed by US Government Authorities [Member] Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Accrued interest receivable Interest Receivable Noncash change in credit enhancement asset Noncash Change In Credit Enhancement Asset Noncash Change In Credit Enhancement Asset Related Party Transactions [Abstract] Related Party Transactions [Abstract] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Preferred stock, par or stated value per share (in dollars per share) Preferred Stock, Par or Stated Value Per Share Subsequent Event Subsequent Event [Member] Cash Flow Hedging Cash Flow Hedging [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Net interest income Interest Income (Expense), Operating Other liabilities Other Liabilities Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Membership interests held by other existing members Equity Method Investment, Ownership Percentage, Remaining Members Ownership percentage held by the other existing members of equity method investment. PEO Total Compensation Amount PEO Total Compensation Amount Gross Amounts of Recognized Liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset Personal Property Personal Property [Member] Personal Property Income taxes receivable, net Income Taxes Receivable Equity Components [Axis] Equity Components [Axis] Entity Ex Transition Period Entity Ex Transition Period Three years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Loans and Leases Receivable Disclosure [Table] Loans and Leases Receivable Disclosure [Table] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] SBA Servicing Asset, Net Transfers and Servicing of Financial Assets [Text Block] Business, Basis of Presentation, and Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Amortized cost Total securities AFS Debt Securities, Available-for-Sale, Amortized Cost Class A Voting Units Class A Voting Units [Member] Classification of Class A voting units of common stock representing ownership interest in a corporation. Other Performance Measure, Amount Other Performance Measure, Amount Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Entity Address, State or Province Entity Address, State or Province Substandard Substandard [Member] Total interest income Interest and Dividend Income, Operating Special Mention Special Mention [Member] Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Fair Value of Financial Instruments Fair Value Measurement, Policy [Policy Text Block] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Loans held-for-investment, net Loans Receivable, Fair Value Disclosure Real Estate Real Estate [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Borrower In Custody Program Borrower In Custody Program [Member] Borrower In Custody Program Individual: Individual [Axis] Business Funding Group, LLC BFG Business Funding Group, LLC [Member] A small business loan broker, primarily under the SBA's 7(a) loan program. Deferred loan fees, net Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount) Additional paid-in-capital Additional Paid in Capital, Common Stock Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Weighted Average Remaining Contractual Life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Life [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Life [Abstract] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Small Business Administration (“SBA”) servicing asset, net Balance at beginning of period Balance at end of period SBA servicing asset, net Servicing Asset at Amortized Cost Loans Insured or Guaranteed by Government Authorities [Axis] Loans Insured or Guaranteed by Government Authorities [Axis] Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Lender Name [Axis] Lender Name [Axis] Operating lease right-of-use (“ROU”) assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Entity Interactive Data Current Entity Interactive Data Current Carrying Amount Reported Value Measurement [Member] Plan Name [Domain] Plan Name [Domain] Bank of the West Bank of the West [Member] Line of credit through Bank of West. Weighted average recognition period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Financing Receivable, Troubled Debt Restructuring [Line Items] Financing Receivable, Modified [Line Items] Stock options exercised, net (in shares) Options exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Equity [Abstract] Interest income Interest and Dividend Income, Operating [Abstract] Options vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Total non-interest expense Noninterest Expense Multiples of enterprise value Measurement Input, Multiples of Enterprise Value [Member] Measurement input using multiples of enterprise value. Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] 30-89 Days Past Due Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, 30 to 89 Days Past Due US Treasury Securities US Treasury Securities [Member] Payment Deferral Payment Deferral [Member] Commercial, non-real estate Commercial Non-Real Estate Portfolio Segment [Member] Portfolio segment of the company's total financing receivables related to commercial non-real estate. Interest on deposits Total amounts of income and expense line items presented in the statement of financial performance in which the effects of cash flow hedges are recorded Interest Expense, Deposits Residential real estate multifamily Residential Real Estate Multifamily Portfolio Segment [Member] Residential Real Estate Multifamily Portfolio Segment Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Non-interest income Noninterest Income [Abstract] Deposits Deposits, Interest-Bearing and Noninterest-Bearing, Alternative [Abstract] Expense growth rate Measurement Input, Expense Growth Rate [Member] Measurement input using compounded annualized rate of growth in expense. Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Weighted Average Weighted Average [Member] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Common stock repurchase program, shares authorized to be purchased (in shares) Share Repurchase Program, Authorized, Number of Shares Credit enhancement asset Credit Enhancement Asset Credit Enhancement Asset Loans Receivable Loans Receivable [Member] SBA 7(a) loans sourced from BFG Loans Sourced From BFG [Member] Loans Sourced From BFG Deferred income taxes, net Deferred Income Tax Assets, Net Schedule of Accumulated Other Comprehensive Income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Adjusted Recovery Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Adjusted Recovery 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] Schedule of Outstanding Loan Balances Categorized by Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Commission fees paid to BFG Commissions Paid to BFG [Member] Commissions Paid to BFG Noninterest-bearing Noninterest-Bearing Deposit Liabilities Arrangement Duration Trading Arrangement Duration SBA servicing asset, fair value Servicing Asset at Amortized Cost, Fair Value Warrant exercise price (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Schedule of Fair Value of Derivative Instruments on the Consolidated Balance Sheet Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Nonrecurring assets: Fair Value Asset Measured On Nonrecurring Basis [Abstract] Fair Value Asset Measured On Nonrecurring Basis [Abstract] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Accrued interest that was reversed against interest income Financing Receivable, Accrued Interest, Writeoff Subsequent Event Type [Axis] Subsequent Event Type [Axis] Commercial real estate - owner occupied Owner occupied Commercial Real Estate Owner Occupied Portfolio Segment [Member] Commercial Real Estate Owner Occupied Portfolio Segment Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Common stock repurchased and retired (in shares) Common stock repurchased and retired (in shares) Stock Repurchased and Retired During Period, Shares Recoveries Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Including Off-Balance-Sheet, Credit Loss, Liability, Recovery Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Including Off-Balance-Sheet, Credit Loss, Liability, Recovery Beginning Balance Ending Balance Allowance for credit losses on unfunded commitments Off-Balance-Sheet, Credit Loss, Liability ASSETS Assets [Abstract] Additional ownership percentage Equity Method Investment, Ownership Percentage , Additions Equity Method Investment, Ownership Percentage , Additions Credit Facility [Axis] Credit Facility [Axis] Unrealized gain on securities available-for-sale OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax Underlying Security Market Price Change Underlying Security Market Price Change, Percent Debt Instrument [Axis] Debt Instrument [Axis] Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Credit Facility [Domain] Credit Facility [Domain] Shareholders’ equity Equity, Attributable to Parent [Abstract] 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] Additions to servicing asset Servicing Asset at Amortized Cost, Additions Strategic Program Loans Strategic Program Loans Strategic Program Loans Portfolio Segment [Member] Portfolio segment of the company's total financing receivables related to Strategic program loans. Amortized Cost Amortized cost Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss Entity Address, Address Line One Entity Address, Address Line One Schedule of Loans Modified and Recorded as TDR's Financing Receivable, Modified [Table Text Block] Accumulated Other Comprehensive Income, Net of Tax AOCI Attributable to Parent [Member] Investment, Name [Axis] Investment, Name [Axis] Total Strategic Program loans Financing Receivable, Excluding Accrued Interest, After Allowance for Credit Loss, Including Held For Sale Financing Receivable, Excluding Accrued Interest, After Allowance for Credit Loss, Including Held For Sale Restricted stock surrendered for tax withholding upon vesting (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Class B Non-Voting Units Class B Non-Voting Units [Member] Classification of Class B non-voting units of common stock representing ownership interest in a corporation. Schedule of Strategic Program Loans Retained and Held-for-sale Strategic Program Loans Retained and Held-for-sale [Table Text Block] Tabular disclosure of strategic Program loans retained and held-for-sale. Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Unfunded lending commitments Off-Balance-Sheet, Credit Loss, Liability [Roll Forward] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] Loans and Leases Receivable Disclosure [Line Items] Loans and Leases Receivable Disclosure [Line Items] Derivatives and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Due 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 5 through 10 Gross Amounts of Recognized Assets Derivative Asset, Subject to Master Netting Arrangement, before Offset Fair Value as of Grant Date Award Grant Date Fair Value Tax effect Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Entity Registrant Name Entity Registrant Name Additional amount expected to be reclassified as a reduction to interest expense Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Earnings multiplier used for purchase price Investment Owned, Purchase Option, Earnings Multiplier Used for Purchase Price Earnings multiplier used to calculate purchase price of remaining members interests. Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Amount Community Bank Leverage Ratio Framework Amount [Abstract] Community Bank Leverage Ratio Framework Amount [Abstract] Four years before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Salaries and employee benefits Labor and Related Expense Stock options (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Strategic Program loans - with credit enhancement Strategic Program Loans Portfolio Segment - With Credit Enhancement [Member] Strategic Program Loans Portfolio Segment - With Credit Enhancement Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Unrecognized stock-based compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Quarterly Report Document Quarterly Report Less than 12 months, fair value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Other unused commitments Financial Instrument, Other [Member] Schedule of Quantitative Information for Level 3 Fair Value Measurements Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Total Financial Asset, Past Due [Member] 12 Months or more, unrealized losses Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Charge-Offs Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Including Off-Balance-Sheet, Credit Loss, Liability, Charge-Off Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Including Off-Balance-Sheet, Credit Loss, Liability, Charge-Off SBA servicing asset, net Servicing Asset at Fair Value, Amount Purchase of FHLB stock Payments for (Proceeds from) Federal Home Loan Bank Stock Net (accretion) amortization of securities (discounts) and premiums Accretion (Amortization) of Discounts and Premiums, Investments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Loans Insured or Guaranteed by Government Authorities [Domain] Loans Insured or Guaranteed by Government Authorities [Domain] Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Granted (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Gross Amounts Not Offset in the Statement of Financial Position, Net Amount Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction Less than 12 months, fair value Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Repayment of PPP Liquidity Facility Repayments of Long-Term Lines of Credit Restatement Determination Date: Restatement Determination Date [Axis] Non-PEO NEO Non-PEO NEO [Member] Outstanding, beginning of year Outstanding, end of period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Debt securities, available-for-sale, allowance for credit loss Debt Securities, Available-for-Sale, Allowance for Credit Loss Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Amounts outstanding under the FHLB line of credit Advance from Federal Home Loan Bank Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Sale of Stock [Axis] Sale of Stock [Axis] Originations of Strategic Program loans held-for-sale Payment for Origination and Purchase, Loan, Held-for-Sale Unrealized gain (loss) on interest rate swaps Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Schedule of Offsetting Assets Offsetting Assets [Table Text Block] Name Trading Arrangement, Individual Name Award Type [Domain] Award Type [Domain] Unrealized gain (loss) on interest rate swaps Amount of Gain (Loss) Recognized in OCI on Derivative Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Net increase in loans receivable Payments for (Proceeds from) Loans Receivable Equity Awards Adjustments Equity Awards Adjustments [Member] Strategic Program loans held-for-sale Loan, Held-for-Sale, Fair Value Disclosure Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Compensation Amount Outstanding Recovery Compensation Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Statement of Comprehensive Income [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Estimated Fair Value Estimate of Fair Value Measurement [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Due after one year through five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Name Awards Close in Time to MNPI Disclosures, Individual Name Unvested as of beginning of year (in dollars per share) Unvested as of end of year (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Due after one year through 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 Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset Stock-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Discount to appraisal value for estimated selling costs Measurement Input, Appraised Value [Member] Accumulated other comprehensive income, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Financial Instruments [Domain] Financial Instruments [Domain] Due after ten years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Purchase of BFG ownership interest Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Pledging Purpose [Domain] Pledging Purpose [Domain] Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction Number of warrants (in shares) Class of Warrant or Right, Number of Securities Called by Warrants or Rights Minimum Minimum [Member] Purchase of lease pools Payment for Acquisition, Lease, Held-for-Investment Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss Available-for-Sale Securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Interest expense Interest Expense, Operating and Nonoperating [Abstract] Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward] Valuation Allowance for Impairment of Recognized Servicing Assets [Roll Forward] Federal Reserve Bank Advances Federal Reserve Bank Advances [Member] Company Selected Measure Name Company Selected Measure Name Fair Value Measurement [Domain] Fair Value Measurement [Domain] Schedule of Financial Instruments with Off-Balance Sheet Risk Schedule of Fair Value, off-Balance-Sheet Risks [Table Text Block] Gross Amounts Offset in the Statement of Financial Position Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Preferred stock, $0.001 par value, 4,000,000 authorized; no shares issued and outstanding as of June 30, 2025 and December 31, 2024 Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accrued interest payable Interest Payable Year before current fiscal year Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Estimated Fair Value Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Assets subject to operating leases, net of accumulated depreciation of $3.7 million and $2.7 million, respectively Property, Plant, and Equipment, Lessor Asset under Operating Lease, after Accumulated Depreciation Net income allocated to common shareholders Net Income (Loss) Available to Common Stockholders, Diluted Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] Due after ten years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 All Executive Categories All Executive Categories [Member] Collateral Held [Domain] Collateral Held [Domain] Common stock, $0.001 par value, 40,000,000 shares authorized; 13,469,725 and 13,211,640 shares issued and outstanding as of June 30, 2025 and December 31, 2024, respectively Common Stock, Value, Issued Revenue growth rate Measurement Input, Long-Term Revenue Growth Rate [Member] Amounts allocated to participating common shareholders Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Interest and fees on loans Interest and Fee Income, Loans and Leases Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Gain on sale of loans, net Gain (Loss) on Sale of Loans and Leases Weighted average shares outstanding, diluted (in shares) Weighted average shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Commitments and contingencies (Note 6) Commitments and Contingencies Current fiscal year, Writeoff Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Fair value of warrants issued per share (in dollars per share) Warrants Issued During Period, Fair Value, Per Share Fair value of warrants issued per share. Derivative [Table] Derivative [Table] Entity Small Business Entity Small Business Distributions received from BFG Distributions From BFG [Member] Distributions From BFG Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Federal Reserve Bank, Discount Window Federal Reserve Bank, Discount Window [Member] Federal Reserve Bank, Discount Window Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report Due after one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Membership interest Equity Method Investment, Ownership Percentage Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Beginning Balance Ending Balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Including Off-Balance-Sheet, Credit Loss, Liability Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest, Including Off-Balance-Sheet, Credit Loss, Liability Options forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period 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] Hedging Designation [Axis] Hedging Designation [Axis] Other interest income Other Interest and Dividend Income Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Four Years before Current Fiscal Year Financing Receivable, Excluding Accrued Interest, Originated, More than Four Years before Current Fiscal Year Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Options vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Schedule of Valuation Allowance for Impairment of Recognized Servicing Assets Schedule of Valuation Allowance for Impairment of Recognized Servicing Assets [Table Text Block] Operating lease liabilities Increase (Decrease) in Operating Lease Liability Outstanding modified loans Financing Receivable, Modified, Accumulated Shares acquired, average cost per share Shares Acquired, Average Cost Per Share Allowance for credit losses related to HTM securities Allowance for Credit Losses Debt Securities, Held-to-Maturity, Allowance for Credit Loss Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] Earnings per Share Earnings Per Share [Text Block] Investment in Business Funding Group (“BFG”), at fair value Investment in BFG Equity Method Investments, Fair Value Disclosure Cash and cash equivalents Cash and Cash Equivalent [Abstract] Name Outstanding Recovery, Individual Name Derivative Contract [Domain] Derivative Contract [Domain] Revolving Loans, Writeoff Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff Recognition of previously unrealized gain on interest rate swaps in net income Amount of Gain Reclassified from Accumulated OCI into Income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] SBA loans serviced for others Loan, Managed and Securitized or Asset-Backed Financing Arrangement, Principal Outstanding All Individuals All Individuals [Member] Residential real estate Residential Real Estate [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Purchase of bank premises and equipment, net Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Individually evaluated loans Financing Receivable, Individually Evaluated for Credit Loss Options forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Year before current fiscal year, Writeoff Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Credit enhancement expense Credit Enhancement Expense Credit Enhancement Expense Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Payment of taxes related to net share settlement of equity awards Payment, Tax Withholding, Share-Based Payment Arrangement Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Private Placement Private Placement [Member] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Four years before current fiscal year, Writeoff Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Net income allocated to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Debt Securities, Held-to-Maturity [Table] Debt Securities, Held-to-Maturity [Table] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Total other comprehensive (loss) income, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Sales or transfers of investment securities Proceeds from Sale of Held-to-Maturity Securities Total, unrealized losses Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss Schedule of Derivative Instruments on the Consolidated Statements of Income Derivative Instruments, Gain (Loss) [Table Text Block] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] 2016 Plan 2016 Plan [Member] A share-based compensation plan approved by the Board of Directors and the Shareholders in 2016. Level 1 Fair Value, Inputs, Level 1 [Member] Long-term line of credit PPPLF Long-Term Line of Credit Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Earnings per share, diluted (in dollars per share) Earnings Per Share, Diluted Deposits Related Party Deposit Liabilities Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Title of 12(b) Security Title of 12(b) Security Provision for (Reversal of) Credit Losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Supplemental disclosures of noncash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Number of plaintiffs Loss Contingency, Number of Plaintiffs Amortized cost of loan modified in the period Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Proceeds from sales of assets subject to operating leases Proceeds from Sale of Machinery and Equipment Earnings Per Share [Abstract] Earnings Per Share [Abstract] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Investment in Business Funding Group, LLC Equity Method Investments and Joint Ventures Disclosure [Text Block] Two years before current fiscal year, Writeoff Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Common stock repurchased and retired Common stock repurchased and retired Stock Repurchased and Retired During Period, Value Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Weighted average effect of dilutive securities: Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Undisbursed commercial real estate loans Commitments to Extend Credit [Member] Options exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Schedule of Restricted Stock Awards Activities Nonvested Restricted Stock Shares Activity [Table Text Block] Award Timing Disclosures [Line Items] Measurement Frequency [Domain] Measurement Frequency [Domain] Zions Bank Zion Bank [Member] Line of credit through Zion Bank. Amortization of servicing asset Servicing Asset at Amortized Cost, Amortization Commercial real estate - non-owner occupied Non-owner occupied Commercial Real Estate Non Owner Occupied Portfolio Segment [Member] Commercial Real Estate Non Owner Occupied Portfolio Segment Schedule of Capital Amounts and Ratios Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Total loans held-for-investment, gross Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Measurement Input, Discount to Non-Voting Shares Measurement Input, Discount to Non-Voting Shares [Member] Measurement Input, Discount to Non-Voting Shares Schedule of Fair Value, off-Balance-Sheet Risks [Table] Fair Value, off-Balance-Sheet Risk [Table] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Loans held-for-investment, net of allowance for credit losses of $16.2 million and $13.2 million, respectively Loans held-for-investment, net Retained Strategic Program loans Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Prior, Writeoff Financing Receivable, Excluding Accrued Interest, Originated, More than Four Years before Current Fiscal Year, Writeoff Financing Receivable, Excluding Accrued Interest, Originated, More than Four Years before Current Fiscal Year, Writeoff Net income Net income Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Strategic Program loans - without credit enhancement Strategic Program Loans Portfolio Segment - Without Credit Enhancement [Member] Strategic Program Loans Portfolio Segment - Without Credit Enhancement Expiration Date Trading Arrangement Expiration Date Capital Requirements [Abstract] Capital Requirements [Abstract] Capital Requirements [Abstract] Other liabilities Increase (Decrease) in Other Operating Liabilities Related party transactions with BFG Related Party Transaction, Amounts of Transaction Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Common stock repurchased Payments for Repurchase of Common Stock Income taxes payable, net Taxes Payable Adoption Date Trading Arrangement Adoption Date Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Entity Current Reporting Status Entity Current Reporting Status Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Collateral Held [Axis] Collateral Held [Axis] Line of Credit Line of Credit [Member] Due in one year or less Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Retained earnings Retained Earnings (Accumulated Deficit) Loans Loans [Member] Residential real estate Residential Residential Portfolio Segment [Member] Derivative liability, fair value Net Amounts of Liabilities presented in the Statement of Financial Position Derivative Liability, Subject to Master Netting Arrangement, after Offset Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] 12 months or more, unrealized losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss SBA loan servicing fees, net Small Business Administration, Loan Servicing Fees and Servicing Asset Amortization The non-interest income earned from small business administration loan servicing fee and amortization of the servicing asset Weighted average discount rate Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate Market comparable Guideline Public Company Valuation, Market Approach [Member] Class of Stock [Axis] Class of Stock [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Cash Flow Hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Less than 12 months, unrealized losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Total deposits Deposits Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Schedule of Loans Outstanding by General Ledger Classification Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Number of shares available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Statement [Table] Statement [Table] Professional services Professional Fees Investment in Federal Home Loan Bank (“FHLB”) stock, at cost Federal Home Loan Bank Stock Derivative liability Derivative Liability Adjustments to reconcile net income to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Other operating expenses Other Noninterest Expense Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Pass Pass [Member] Proceeds from sale of Strategic Program loans held-for-sale Proceeds from Collection, Loan, Held-for-Sale 2019 Plan 2019 Plan [Member] A share-based compensation plan approved by the Board of Directors and the Shareholders in 2019. Total, unrealized losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract] Anti-dilutive stock options excluded from the calculation of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Schedule of Reconciliation of Investment in BFG Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] All Adjustments to Compensation All Adjustments to Compensation [Member] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Amendment Flag Amendment Flag Income tax benefit related to restricted shares Share-Based Payment Arrangement, Expense, Tax Benefit Schedule of Held-to-Maturity Securities [Line Items] Schedule of Held-to-Maturity Securities [Line Items] Estimated Fair Value Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Number of shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Collateral Pledged Collateral Pledged [Member] Accrued interest receivable debt securities available for sale Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Schedule of Nonaccrual and Past Due Loans Financing Receivable, Past Due [Table Text Block] Transfers and Servicing [Abstract] Transfers and Servicing [Abstract] Interest-bearing Interest-Bearing Deposit Liabilities Commercial and industrial Commercial and Industrial Portfolio Segment [Member] Commercial and Industrial Portfolio Segment Termination Date Trading Arrangement Termination Date Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Interest-bearing deposits in other banks (restricted cash of $3.2 million and $3.1 million, respectively) Interest-Bearing Deposits in Banks and Other Financial Institutions Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Allowance for Credit Losses Allowance for credit losses Beginning Balance Ending Balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Provision for credit losses Financing Receivable, Credit Loss, Expense (Reversal) Receivable [Domain] Receivable [Domain] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Schedule of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Schedule of Assets Measured at Fair Value on a Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Weighted average shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Schedule of Basic and Diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Consumer Consumer Portfolio Segment [Member] Related Party Transaction [Domain] Related Party Transaction [Domain] Options vested and exercisable, end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Subsequent Events [Abstract] Subsequent Events [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Derivative asset, fair value Net Amounts of Assets presented in the Statement of Financial Position Derivative Asset, Subject to Master Netting Arrangement, after Offset Entity Tax Identification Number Entity Tax Identification Number Discounted Cash Flows Valuation Technique, Discounted Cash Flow [Member] Available line of credit with the FHLB Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds Three years before current fiscal year, Writeoff Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Amounts reclassified from accumulated other comprehensive income Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Liabilities: Offsetting Derivative Liabilities [Abstract] Outstanding, beginning of year (in dollars per share) Outstanding, end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Loans and Leases Receivable Disclosure [Abstract] Loans and Leases Receivable Disclosure [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par or stated value per share (in dollars per share) Common Stock, Par or Stated Value Per Share Construction and land development Construction and land development Construction and Land Development Portfolio Segment [Member] Construction and Land Development Portfolio Segment Common stock, shares, issued (in shares) Common Stock, Shares, Issued Other comprehensive income items, net of tax: Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosure [Abstract] Use of Estimates Use of Estimates, Policy [Policy Text Block] Income tax (expense) benefit Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Occupancy and equipment expenses Occupancy, Net Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount SBA Small Business Administration Portfolio Segment [Member] Portfolio segment of the company's total financing receivables related to Small Business Administration. Gross Amounts Offset in the Statement of Financial Position Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Subsequent Event Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Security Exchange Name Security Exchange Name Number of securities in unrealized loss position Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Change in valuation allowance Servicing Asset at Amortized Cost, Increase (Decrease) for Valuation Allowance Adjustment Current Loans Financial Asset, Not Past Due [Member] Strategic Program fees Strategic Program Fees Including Service Charges The non-interest income earned from strategic program fees including service charges. Total liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Mortgage-backed securities Collateralized Mortgage-Backed Securities [Member] Loans Financing Receivables [Text Block] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Pledging Purpose [Axis] Pledging Purpose [Axis] Total unfunded loan commitments Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability Ratio Community Bank Leverage Ratio Framework Ratio [Abstract] Community Bank Leverage Ratio Framework Ratio [Abstract] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Change in fair value of BFG Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings BFG ownership purchase Stock Issued During Period, Value, New Issues Statement [Line Items] Statement [Line Items] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Total cash and cash equivalents Cash and Cash Equivalent Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Subsequent Event [Line Items] Subsequent Event [Line Items] Number of additional shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Proceeds from maturities and paydowns of securities held-to-maturity Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Deferred income taxes Increase (Decrease) in Deferred Income Taxes Common Stock Common Stock [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Investment securities available-for-sale, at fair value, net of allowance for credit losses of $0, (amortized cost of $30.0 million and $30.0 million, respectively) Estimated Fair Value Total securities AFS U.S. Treasury securities Debt Securities, Available-for-Sale Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Net change in cash and cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Servicing Asset at Fair Value, Amount [Roll Forward] Servicing Asset at Fair Value, Amount [Roll Forward]