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Fair Value Measurements and Fair Values of Financial Instruments (Narrative) (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Impaired loans | $ 11,817,000 | $ 4,229,000 | $ 2,784,000 |
Total Loans Receivable | 3,033,784,000 | 3,317,402,000 | 3,082,418,000 |
Allowance for credit losses | 34,789,000 | 33,608,000 | $ 32,373,000 | $ 37,119,000
Fair Value, Recurring [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Liabilities | 0 | 0 |  |
Impaired Loans [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Losses (recoveries) on impaired loans | 7,600,000 | 1,400,000 |  |
(Level 3) Significant Unobservable Inputs [Member] | Impaired Loans [Member] |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Impaired loans | 31,200,000 | 27,800,000 |  |
Valuation allowance | $ 11,800,000 | $ 4,200,000 |  |

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