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Loans (Narrative) (Details) - USD ($) | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | $ 1,959,439,000 | $ 1,866,115,000
Borrowings |  | 185,000,000
Federal Reserve Bank [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Borrowing capacity | 839,400,000 | 786,500,000
Borrowings | 0 | 0
Federal Reserve Bank [Member] | Collateral Dependent Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 949,200,000 | 897,500,000
Federal Home Loan Bank [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Borrowings | 0 | 70,000,000.0
Remaining borrowing capacity | 500,200,000 | 391,200,000
Federal Home Loan Bank [Member] | Collateral Dependent Impaired Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | $ 764,500,000 | $ 654,800,000

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