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[Member] Change in FMV of hedged loans and related interest rate swaps Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Modified [Table] Basis spread Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code Non-accrual loans with no allowance Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Total minimum lease payments Finance Lease, Liability, to be Paid Restricted Stock Restricted Stock [Member] Accumulated Other Comprehensive Loss, Net of Taxes AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Carrying Amounts of Hedged Assets Hedged Asset, Fair Value Hedge Debit card interchange fees, net Debit Card [Member] Name Forgone Recovery, Individual Name Schedule of Sale of Investment Securities and Gross Gains and Losses Realized Gain (Loss) on Investments [Table Text Block] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Operating Leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Average Balance Finance Lease Liability, Average Amount Outstanding Finance Lease Liability, Average Amount Outstanding Term Extension Extended Maturity [Member] Total interest expense Total interest expense Interest Expense, Operating Preferred stock, issued (in shares) Preferred Stock, Shares Issued Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Total interest income Interest income Interest and Dividend Income, Operating Accumulated amortization Finance Lease, Right-of-Use Asset, Accumulated Amortization Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Operating Segments Operating Segments [Member] Undisbursed construction loans Undisbursed Construction Loans [Member] Undisbursed Construction Loans [Member] Reclassification adjustment for losses realized on the sale of available-for-sale securities in net loss Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax Number of forms of outstanding common stock Number Of Forms Of Outstanding Common Stock Number Of Forms Of Outstanding Common Stock Proceeds from stock issued under employee and director stock purchase plans Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Excluding Option Exercised Gross unrealized gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Stock issued under employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Net changes in interest receivable and other assets Increase (Decrease) in Other Operating Assets PEO PEO [Member] Weighted Average Rate Finance Lease Liability, Weighted Average Interest Rate Finance Lease Liability, Weighted Average Interest Rate Non-interest bearing Noninterest-Bearing Deposit Liabilities Net (decrease) increase in deposits Increase (Decrease) in Deposits Gross amounts offset in the statements of condition Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Measurement Basis [Axis] Measurement Basis [Axis] Goodwill Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Legacy Class B FHLB Stock Legacy Class B FHLB Stock [Member] Legacy Class B FHLB Stock Total investment securities Investments Change in net unrealized (losses) gains on available-for-sale securities OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax Within one year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Subsequent Event Type [Domain] Subsequent Event Type [Domain] Proceeds from sale of loan Proceeds from Sale of Finance Receivables Retained Earnings Retained Earnings [Member] 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] Gross current period charge-offs, originated, revolving loans amortized cost Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff Financing receivable, unamortized loan fee Financing Receivable, Unamortized Loan Cost (Fee) Fair Value Hierarchy and Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Schedule of Fair Value of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Diluted (in dollars per share) Diluted earnings (loss) per common share (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash (used for) provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Federal Deposit Insurance Corporation insurance Federal Deposit Insurance Corporation Premium Expense Total Shareholder Return Amount Total Shareholder Return Amount Restricted stock surrendered for tax withholdings upon vesting Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Amortization of core deposit intangible Amortization of core deposit intangible Intangible Asset, Finite-Lived, Amortization Expense Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Stockholders' Equity Stockholders' Equity Note [Abstract] Financing receivable, originated, year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Interest on borrowings and other obligations Interest Expense, Borrowings and Other Obligations Interest Expense, Borrowings and Other Obligations Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Weighted-Average Term Extension (in years) Financing Receivable, Modified, Weighted-Average Term Increase from Modification All other income Other Income (Loss), Segment Reconciliation Other Income (Loss), Segment Reconciliation Cash Flows from Financing Activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Specific allocations Specific Allocations [Member] Specific Allocations Carrying Value Line of Credit, Current Schedule of Financial Instruments Owned and Pledged as Collateral Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] Financial Instruments [Domain] Financial Instruments [Domain] Interest receivable Interest Receivable, Fair Value Disclosure This element represents the disclosures for fair value estimates for financial instruments required in the footnote disclosures to the financial statements. Carrying amount represents interest earned but not received from loan borrowers, investment security issuers and on other forms of short-term investment for time value of money. The carrying value may approximate fair value due to the short-term nature of their settlement dates. Financial assets (recorded at amortized cost) Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Financing receivable, originated, year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Derivative financial assets (interest rate contracts) Interest rate contracts fair value, asset derivatives Derivative Asset Stock repurchased Stock repurchased Stock Repurchased During Period, Value Federal home loan bank stock, par value (in usd per share) Federal Home Loan Bank Stock, Par Value Federal Home Loan Bank Stock, Par Value Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount MBS pass-through securities issued by FHLMC, FNMA and GNMA Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] Fair Value Estimate of Fair Value Measurement [Member] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Service charges on deposit accounts Deposit Account [Member] Stock issued under employee stock ownership plan Stock Issued During Period, Value, Employee Stock Ownership Plan Net Amount Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Schedule of Information of Cashless Exercise Prices Share-based Payment Arrangement, Share Information about Cashless Exercises [Table Text Block] Share-based Payment Arrangement, Share Information about Cashless Exercises Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Federal Reserve Bank Federal Reserve Bank [Member] Federal Reserve Bank Total Modifications Total Loan Restructuring Modification [Member] Total Loan Restructuring Modification Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Total Modifications Total Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Number of instruments held Derivative, Number of Instruments Held Home equity Home Equity Loan [Member] Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Allowance for credit losses on unfunded commitments Off-Balance-Sheet, Credit Loss, Liability Schedule of Components of Operating and Finance Lease Cost Lease, Cost [Table Text Block] Weighted Average Rate Debt And Finance Lease Liability, Weighted Average Interest Rate Debt And Finance Lease Liability, Weighted Average Interest Rate Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Net gain recognized in interest income on loans Derivative, Gain (Loss) on Derivative, Net Available-for-sale, less than 12 continuous months, fair value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Segment income (loss) Operating Income (Loss) Community Banking Segment Community Banking Segment [Member] Community Banking Segment Schedule of Unrealized Loss on Investments Debt Securities, Available-For-Sale And Held-To-Maturity, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Debt Securities, Available-For-Sale And Held-To-Maturity, Continuous Unrealized Loss Position, Fair Value Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Finance Lease Liability Maturities Finance Lease, Liability, to be Paid, Maturity [Table Text Block] 2026 Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Number of loans 90 days past due and still accruing Financing Receivable, 90 Days Or More Past Due, Still Accruing, Number Of Loans Financing Receivable, 90 Days Or More Past Due, Still Accruing, Number Of Loans (Reversal of) provision for credit losses on loans Provision for credit losses on loans Provision (Reversal) Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Collateral Held [Axis] Collateral Held [Axis] Net amounts of assets presented in the statements of condition Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral Stock repurchased (in shares) Stock repurchased (in shares) Stock Repurchased During Period, Shares Lease payments not include future payments Unrecorded Unconditional Purchase Obligation 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] Dividends declared per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Proceeds from bank-owned life insurance policies Proceeds from Life Insurance Policy Revolving Loans Amortized Cost Financing Receivable, Excluding Accrued Interest, Revolving Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Available-for-sale: Debt Securities, Available-for-Sale, Realized Gain (Loss) [Abstract] Schedule of Allowance for Credit Losses on Financing Receivables Financing Receivable, Allowance for Credit Loss [Table Text Block] Common stock, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Secure public deposits in compliance with the Local Agency Security Program Public Deposits [Member] Pledged assets to secure Public Deposits placed to the institution [Member] Basis of Presentation Business Description and Basis of Presentation [Text Block] Amortization of discount on subordinated notes Amortization of Debt Discount (Premium) Interest bearing: Interest-Bearing Deposit Liabilities [Abstract] Finance lease, initial contract terms (in years) Lessee, Finance Lease, Term of Contract Salaries and related benefits Labor And Related Expense, Adjusted Labor And Related Expense, Adjusted Available-for-sale, greater than 12 continuous months, unrealized loss Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total adjustments Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity Equity Components [Axis] Equity Components [Axis] Related Party Related Party [Member] Product and Service [Domain] Product and Service [Domain] Income taxes paid, net of refunds Income Tax Paid, after Refund Received Credit loss expense on held-to-maturity securities Debt Securities, Held-to-Maturity, Change in Method, Credit Loss Expense (Reversal) Entity Interactive Data Current Entity Interactive Data Current Number of investment securities in unrealized loss position Marketable Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Marketable Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Non-interest expense Non-interest expense Noninterest Expense [Abstract] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] After one but within five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Depreciation and amortization Depreciation, Depletion And Amortization, Nonproduction, Excluding Amortization Of Intangible Assets, Adjusted Depreciation, Depletion And Amortization, Nonproduction, Excluding Amortization Of Intangible Assets, Adjusted Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Smaller Reporting Company Entity Small Business Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent 2029 Lessee, Operating Lease, Liability, to be Paid, Year Three Termination Date Trading Arrangement Termination Date FRBSF advances - Discount Window Federal Reserve Bank Advances [Member] Restricted stock surrendered for tax withholdings upon vesting (in shares) Number of shares withheld (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Decrease in value of yield maintenance agreement Derivative, Increase (Decrease) in Value of Yield Maintenance Agreement Increase (Decrease) in value of yield maintenance agreement recognized against interest income. Class B and Class B-1 stock Class B and Class B-1 stock [Member] Class B and Class B-1 stock Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Net interest income Interest Income (Expense), Operating MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Net Amount Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Debentures of government sponsored agencies Debentures of government- sponsored enterprises US Government-sponsored Enterprises Debt Securities [Member] Bankruptcy trustee deposits pledged with Federal Reserve Bank Bankruptcy Trustee Deposits Pledged With Federal Reserve Bank [Member] Bankruptcy Trustee Deposits Pledged With Federal Reserve Bank 2029 Finance Lease, Liability, to be Paid, Year Three Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Subordinated Notes Subordinated Borrowings Disclosure [Text Block] Document Type Document Type 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] Fair Value as of Grant Date Award Grant Date Fair Value Collateral Pledged Collateral Pledged [Member] Available-for-sale, allowance for credit loss Allowance for Credit Losses Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Unallocated Unallocated Financing Receivables [Member] Pledged to FHLB Securities-Backed Credit Program FHLB Securities Backed Credit Program [Member] FHLB Securities Backed Credit Program Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Repurchase of shares, remaining amount Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Class B-2 Shares Class B-2 Shares [Member] Class B-2 Shares Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Financial Instruments Owned and Pledged as Collateral [Table] Financial Instruments Owned and Pledged as Collateral [Table] Unvested restricted stock awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Nonvested Shares with Forfeitable Dividends Local Phone Number Local Phone Number Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Collateral for trust deposits Trust Deposits [Member] Pledged assets to secure Trust Deposits placed in the institution [Member] Available-for-sale, less than 12 continuous months, unrealized loss Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Income (loss) before provision for (benefit from) income taxes Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Standby letters of credit Financial Standby Letter of Credit [Member] Commitments and contingent liabilities (Note 8) Commitments and Contingencies Occupancy and equipment Occupancy And Equipment, Adjusted Occupancy And Equipment, Adjusted Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Wealth management and trust services Fiduciary and Trust [Member] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] CMOs issued by FHLMC, FNMA and GNMA Collateralized Mortgage Obligations [Member] Amortization of right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Finance lease cost: Finance Lease Cost1 [Abstract] Finance Lease Cost1 [Abstract] Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Interest payable Interest Payable, Fair Value Disclosure This element represents the disclosures for fair value estimates for financial instruments required in the footnote disclosures to the financial statements. Carrying amount represents accrued interest payable on all forms of debt, including deposit liabilities, that has been incurred and is unpaid for time value of money. The carrying value may approximate fair value due to the short-term nature of their settlement dates. Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Other Commitments [Table] Other Commitments [Table] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Interest on finance lease liabilities Finance Lease, Interest Expense 2026 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Fair Value of Assets and Liabilities Fair Value Disclosures [Text Block] Significant Unobservable Inputs  (Level 3) Level 3 Fair Value, Inputs, Level 3 [Member] Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] PEO Name PEO Name Pledged to the Federal Reserve Discount Window Federal Reserve Discount Window [Member] Federal Reserve Discount Window Stock repurchased Payments for Repurchase of Equity Financial liabilities (recorded at amortized cost) Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Revolving home equity lines Home Equity Line of Credit [Member] Stock issued in payment of director fees Stock Issued In Payment Of Director Fees Dollar amount of common stock issued by an Entity to its directors in payment of services they render. Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] 30-59 days past due Financial Asset, 30 to 59 Days Past Due [Member] Entity Tax Identification Number Entity Tax Identification Number Number of investment securities in unrealized loss position less than 12 months Marketable Securities In Unrealized Loss Positions, Qualitative Disclosure, Number Of Positions, Less Than 12 Months Marketable Securities In Unrealized Loss Positions, Qualitative Disclosure, Number Of Positions, Less Than 12 Months Schedule of Loans Outstanding and Aging Analysis Financing Receivable, Past Due [Table Text Block] Current Financial Asset, Not Past Due [Member] Potentially dilutive common shares related to: Potentially Dilutive Common Shares Related To [Abstract] Potentially Dilutive Common Shares Related To Securities of U.S. government-sponsored enterprises: Securities Of U.S. Government-Sponsored Enterprises [Abstract] Securities Of U.S. Government-Sponsored Enterprises Other Commitments [Line Items] Other Commitments [Line Items] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction, Excluding Amortization Of Intangible Assets Depreciation, Depletion and Amortization, Nonproduction, Excluding Amortization Of Intangible Assets Credit Loss Status [Axis] Credit Loss Status [Axis] Non-interest income Noninterest Income [Abstract] Cash, cash equivalents and restricted cash Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Gross amounts not offset in the statements of condition, cash collateral pledged Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Schedule of Available-for-sale Securities and Held-to-maturity Securities [Table] Schedule of Available-for-sale Securities and Held-to-maturity Securities [Table] Schedule of Available-for-sale Securities and Held-to-maturity Securities [Table] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Earnings on bank-owned life insurance, net Earnings on bank-owned life insurance policies Bank Owned Life Insurance Income Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] 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] Debt Instrument [Axis] Debt Instrument [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Commercial mortgage-backed securities, mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies Commercial Mortgage-Backed Securities, Mortgage-Backed Securities And Collateralized Mortgage Obligations Issued By U.S. Government-Sponsored Agencies [Member] Commercial Mortgage-Backed Securities, Mortgage-Backed Securities And Collateralized Mortgage Obligations Issued By U.S. Government-Sponsored Agencies Interest expense Interest Expense, Operating and Nonoperating [Abstract] Salaries and related benefits Labor and Related Expense Total lease cost Lease, Cost Qualitative adjustments Qualitative Adjustments [Member] Qualitative Adjustments Nonaccrual collateral dependent loans in process of foreclosure Financing Receivable, Nonaccrual, In Process Of Foreclosure Financing Receivable, Nonaccrual, In Process Of Foreclosure Interest rate contracts Interest Rate Contracts, Loans [Member] Interest Rate Contracts, Loans Schedule of Debt Schedule of Debt [Table Text Block] Net amounts of liabilities presented in the statements of condition Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral Data processing Data Processing The amount of expenses incurred in the period for data processing products and services. Proceeds from paydowns/maturities of held-to-maturity securities Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] After five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Schedule of Information on Derivatives Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Basic (in dollars per share) Basic earnings (loss) per common share (in dollars per share) Earnings Per Share, Basic Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Schedule of Interest Income Derivative Instruments, Gain (Loss) [Table Text Block] Federal home loan bank, dividend rate percentage Federal Home Loan Bank, Dividend Rate, Percentage Federal Home Loan Bank, Dividend Rate, Percentage Award Type [Axis] Award Type [Axis] Interest rate contract Interest Rate Contract [Member] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Total Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Retained earnings Retained Earnings (Accumulated Deficit) Installment and other consumer loans Installment and other consumer Consumer Portfolio Segment [Member] Bank-owned life insurance Bank Owned Life Insurance Product and Service [Axis] Product and Service [Axis] Professional services Professional Fees, Adjusted Professional Fees, Adjusted 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] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Schedule of Fair Value, Off-balance Sheet Risks [Table] Fair Value, off-Balance-Sheet Risk [Table] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Allowance For Credit Loss, Allocation [Domain] Allowance For Credit Loss, Allocation [Domain] Allowance For Credit Loss, Allocation [Domain] Operating lease cost Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Gross current period charge-offs, originated, year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Cover [Abstract] Cover [Abstract] Interest on subordinated notes Interest Expense, Trust Preferred Securities Total unfunded loan commitments and standby letters of credit Lines of Credit and Letters of Credit, Unused Commitments [Member] Lines of Credit and Letters of Credit, Unused Commitments [Member] Derivative Contract Type [Domain] Derivative Contract [Domain] Gross current period charge-offs, originated, year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Total amount withheld (in thousands) Adjustments Related To Tax Withholding And Exercise Of Options For Share-Based Compensation Adjustments Related To Tax Withholding And Exercise Of Options For Share-Based Compensation Equity Awards Adjustments Equity Awards Adjustments [Member] Total past due Financial Asset, Past Due [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Loss on sale of securities, before tax Debt Securities, Available-for-Sale, Realized Gain (Loss) Total liabilities and stockholders' equity Liabilities and Equity Finance leases: Finance Leases [Abstract] Finance Leases [Abstract] Other expense Other Noninterest Expense, Adjusted Other Noninterest Expense, Adjusted Stock Options Share-Based Payment Arrangement, Option [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Segments [Axis] Segments [Axis] Net changes in interest payable and other liabilities Increase (Decrease) in Other Operating Liabilities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Pass and Watch Pass [Member] Related Party [Domain] Related and Nonrelated Parties [Domain] Schedule of Loans by Class Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Tabular List, Table Tabular List [Table Text Block] Cumulative Amounts of Fair Value Hedging Adjustments Included in the Carrying Amounts of the Hedged Assets Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Name Awards Close in Time to MNPI Disclosures, Individual Name 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] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Preferred stock, no par value, Authorized - 5,000,000 shares, none issued Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] CMBS issued by FHLMC, FNMA and GNMA Commercial Mortgage-Backed Securities [Member] Dividends on Federal Home Loan Bank stock Federal home loan bank, special dividend income Dividend Income, Federal Home Loan Bank Dividend Income, Federal Home Loan Bank Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid on deposits and borrowings Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] 60-89 days past due Financial Asset, 60 to 89 Days Past Due [Member] Transaction accounts Deposits, Negotiable Order of Withdrawal (NOW) Credit Facility [Axis] Credit Facility [Axis] Reconciliation of segment income Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Abstract] Stock issued under employee stock ownership plan (in shares) Stock Issued During Period, Shares, Employee Stock Ownership Plan Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Schedule of Collateral Dependent Non-Accrual Loans Schedule of Collateral Dependent Loans [Table Text Block] Schedule of Collateral Dependent Loans Amortization of net unrealized losses on securities transferred from available-for-sale to held-to-maturity Amortization of net unrealized loss on available-for-sale securities transferred to held-to-maturity Amortization Of Net Unrealized Loss On Available-For-Sale Securities Transferred To Held-To-Maturity Amortization Of Net Unrealized Loss On Available-For-Sale Securities Transferred To Held-To-Maturity Interest on interest-bearing transaction accounts Interest Expense, Negotiable Order of Withdrawal (NOW) Deposits Name Measure Name Noncash director compensation expense Compensation Expense Common Stock For Director Fees Noncash director fees payable in common stock expensed by the entity during the period. As noncash, this element is added back to net income when calculating net cash generated by operating activities using the indirect method. Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Interest and fees on loans Interest and Fee Income, Financing Receivable Entity Filer Category Entity Filer Category Available-for-sale, total securities in a loss position, fair value Debt Securities, Available-for-Sale, Unrealized Loss Position Loans and Allowance for Credit Losses on Loans Financing Receivable [Policy Text Block] FRBSF advances - Discount Window Federal Funds Purchased [Member] Restricted stock forfeited / cancelled Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Total investment securities pledged to the State of California Pledged to State of California [Member] Pledged to the State of California [Member] Schedule of Offsetting Assets and Liabilities Offsetting Liabilities [Table Text Block] Name Trading Arrangement, Individual Name Stock issued in payment of director fees (in shares) Stock Issued In Payment Of Director Fees Shares Common stock issued by an Entity to its directors in payment of services they render in number of shares. Merchant interchange fees, net Merchant Interchange Fees, Net [Member] Merchant Interchange Fees, Net [Member] Finance Leases Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Losses on sale of investment securities Debt and Equity Securities, Gain (Loss) Company Selected Measure Amount Company Selected Measure Amount Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Schedule of Segment Revenue, Profit or Loss, Significant Segment Expenses and Other Segment Items Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Table Text Block] Deposits: Deposits [Abstract] Investment securities: Investment securities: Investments, Debt and Equity Securities [Abstract] Financing receivable, nonaccrual, earning interest on cash basis Financing Receivable, Nonaccrual, Earning Interest On Cash Basis Financing Receivable, Nonaccrual, Earning Interest On Cash Basis Entity Address, Address Line Two Entity Address, Address Line Two Thereafter Finance Lease, Liability, To Be Paid, After Year Four Finance Lease, Liability, To Be Paid, After Year Four Allowance for Loan and Lease Losses [Roll Forward] Allowance for Loan and Lease Losses [Roll Forward] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Charitable contributions Charitable Contributions Expense Charitable Contributions Expense Weighted average remaining term (in years) Operating Lease, Weighted Average Remaining Lease Term Class B-1 Shares Class B-1 Shares [Member] Class B-1 Shares Derivative financial liabilities (interest rate contracts) Interest rate contracts fair value, liability derivatives Derivative Liability Core deposit intangible, net Finite-Lived Core Deposits, Gross Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Right-of-use assets obtained in exchange for operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Provision for (benefit from) income taxes Income Tax Expense (Benefit) Total non-interest expense Noninterest Expense Fair value hedge Fair Value Hedging [Member] Unrecognized purchase discounts Financing Receivable, Unamortized Purchase Premium (Discount) Restricted stock forfeited / cancelled (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Financial Instruments Owned and Pledged as Collateral [Line Items] Financial Instruments Owned and Pledged as Collateral [Line Items] Award Timing Method Award Timing Method [Text Block] Net increase in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Gross current period charge-offs, originated, total (Charge-offs) Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Interest rate contracts notional amount, liability derivatives Derivative Liability, Notional Amount Accrued interest Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Recently Adopted and Issued Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] Net income (loss) Net income (loss) Total consolidated income Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Commercial non-owner occupied Commercial real estate, non-owner occupied Commercial Real Estate Loan, Non-Owner Occupied [Member] Commercial Real Estate Loan, Non-Owner Occupied Statement [Table] Statement [Table] Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from stock options exercised Proceeds from Stock Options Exercised Financing receivable, originated, year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Schedule of Undrawn Loan Commitments and Standby Letters of Credit Schedule Of Contractual Amount, Off-Balance Sheet Risks [Table Text Block] Schedule Of Contractual Amount, Off-Balance Sheet Risks [Table Text Block] Gross amounts of recognized assets Derivative Asset, Subject to Master Netting Arrangement, before Offset Federal Reserve Bank Term Funding Program Federal Reserve Bank Term Funding Program [Member] Federal Reserve Bank Term Funding Program Supplemental disclosure of noncash investing and financing activities: Other Noncash Investing and Financing Items [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]