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Commitments and Contingent Liabilities - Other (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024
Commitments and Contingent Liabilities |  |  |  |  |  |  |
Provision for indemnifications | $ (75,000) | $ (100,000) | $ (135,000) | $ (375,000) |  |  |
Indemnification reserve for recourse provisions |  |  |  |  |  |  |
Commitments and Contingent Liabilities |  |  |  |  |  |  |
Provision for indemnifications | 75,000 | $ 100,000 | 135,000 | $ 375,000 |  |  |
Indemnification payments paid |  |  |  |  | $ 0 |  | $ 0
Allowance for indemnifications | $ 1,210,000 |  | $ 1,210,000 |  |  | $ 1,350,000 |
C&F Mortgage |  |  |  |  |  |  |
Commitments and Contingent Liabilities |  |  |  |  |  |  |
Recourse period for early payment default, minimum |  |  | 90 days |  |  |  |
Recourse period for early payment default, maximum |  |  | 1 year |  |  |  |

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