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v3.25.4

Basis of Presentation and Significant Accounting Policies (Details) | 12 Months Ended
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Dec. 31, 2025 USD ($) segment branch | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Product Information [Line Items] |  |  |
Reserve and clearing required balance | $ 0 | $ 0 |
Interest on loans held-for-investment, threshold period past due | 90 days |  |
Qualified affordable housing project investment | $ 7,200,000 | 8,300,000 |
Unfunded commitments | $ 3,200,000 | $ 5,800,000 |
Investment, Proportional Amortization Method, Elected, Statement of Financial Position [Extensible Enumeration] | Accrued interest payable and other liabilities | Accrued interest payable and other liabilities |
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration] | Income tax expense |  | Income tax expense
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Cash Flows [Extensible Enumeration] |  | Income tax expense |
Amortization expense recognized on qualified affordable housing projects | $ 1,000,000.0 | $ 572,000 | $ 451,000
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization, Statement of Income or Comprehensive Income [Extensible Enumeration] | Federal Home Loan Bank and other restricted stock, at cost |  | Federal Home Loan Bank and other restricted stock, at cost
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization, Statement of Cash Flows [Extensible Enumeration] |  | Federal Home Loan Bank and other restricted stock, at cost |
Federal tax credits and other benefits | $ 1,000,000.0 | $ 757,000 | $ 674,000
Impairment of qualified affordable housing projects | 0 | 0 |
Investment in private equity | $ 0 | $ 1,000,000 | $ 0
Number of reportable segments | segment | 1 |  |
Number of operating segments | segment | 1 |  |
Closed Loans |  |  |
Product Information [Line Items] |  |  |
Charge-off time period | 120 days |  |
Open Loans |  |  |
Product Information [Line Items] |  |  |
Charge-off time period | 180 days |  |
Minimum |  |  |
Product Information [Line Items] |  |  |
Lease renewal term | 1 year |  |
Minimum | Furniture, fixtures and equipment |  |  |
Product Information [Line Items] |  |  |
Estimated useful lives of premises and equipment | 3 years |  |
Maximum |  |  |
Product Information [Line Items] |  |  |
Lease renewal term | 5 years |  |
Maximum | Furniture, fixtures and equipment |  |  |
Product Information [Line Items] |  |  |
Estimated useful lives of premises and equipment | 7 years |  |
California |  |  |
Product Information [Line Items] |  |  |
Number of full-service branches | branch | 9 |  |
California | Minimum |  |  |
Product Information [Line Items] |  |  |
Total assets of peer group | $ 1,000,000,000 |  |
California | Maximum |  |  |
Product Information [Line Items] |  |  |
Total assets of peer group | $ 10,000,000,000 |  |
New Jersey and New York |  |  |
Product Information [Line Items] |  |  |
Number of full-service branches | branch | 3 |  |
Texas |  |  |
Product Information [Line Items] |  |  |
Number of full-service branches | branch | 2 |  |
GEORGIA |  |  |
Product Information [Line Items] |  |  |
Number of full-service branches | branch | 1 |  |

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