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Loans and Allowance for Credit Losses - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) class | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Real estate loan classes | class |  |  | 3 |  |
Net unamortized loan fees | $ 839 |  | $ 839 |  | $ 846
Financing receivable, nonaccrual, interest income | 20 | $ 16 | 101 | $ 58 |
Mortgage loans in process of foreclosure, amount | 453 |  | 453 |  | 1,200
Individually Evaluated Loans | 6,000 | $ 0 | 6,000 | $ 0 | 5,600
Impaired financing receivable, valuation allowance | 220 |  | 220 |  | $ 398
Real Estate: | Commercial |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Individually Evaluated Loans | 5,100 |  | 5,100 |  |
Impaired financing receivable, valuation allowance | 53 |  | 53 |  |
Real Estate: | Residential |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Individually Evaluated Loans | 558 |  | 558 |  |
Impaired financing receivable, valuation allowance | 37 |  | 37 |  |
Real Estate: | Construction |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |
Individually Evaluated Loans | 415 |  | 415 |  |
Impaired financing receivable, valuation allowance | $ 130 |  | $ 130 |  |

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