Off-Balance-Sheet Activities - Activity in the allowance for credit losses related to off-balance sheet commitments (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
|
| Allowance for credit losses related to off-balance sheet commitments | |||||
| Beginning balance | $ 94,000 | $ 94,000 | $ 94,000 | $ 94,000 | $ 94,000 |
| Provision for (reversal of) credit loss expense - off balance sheet | 0 | 0 | 0 | 0 | 0 |
| Ending balance | $ 94,000 | $ 94,000 | $ 94,000 | $ 94,000 | $ 94,000 |