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Borrowed Funds - Subordinated Debt (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Nov. 30, 2020 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2007
Subordinated Debt |  |  |  |  |  |
Balance at end of year |  |  | $ 73,540 | $ 73,286 |  |
Interest expense on borrowed funds |  |  | 3,219 | 3,072 | $ 2,188 |
Subordinated Debt |  |  |  |  |  |
Subordinated Debt |  |  |  |  |  |
Balance at end of year |  |  | 73,540 | 73,286 |  |
Average balance during the year |  |  | 73,415 | 73,159 |  |
Maximum month-end balance |  |  | $ 73,540 | $ 73,286 |  |
Weighted-average rate during the year |  |  | 4.38% | 4.20% |  |
Weighted-average rate at December 31 |  |  | 4.02% | 3.97% |  |
Face amount of debt issued | $ 30,000 | $ 40,000 |  |  |  |
Term of debt instrument | 10 years | 10 years |  |  |  |
Interest rate on debt security | 3.25% | 4.25% |  |  |  |
Interest expense on borrowed funds |  |  | $ 3,200 | $ 3,100 | $ 2,200 |
Subordinated Debt | Subordinated Debentures |  |  |  |  |  |
Subordinated Debt |  |  |  |  |  |
Face amount of debt issued |  |  |  |  |  | $ 4,000
Subordinated Debt | SOFR |  |  |  |  |  |
Subordinated Debt |  |  |  |  |  |
Variable rate basis spread | 2.54% | 4.01% |  |  |  |
Subordinated Debt | SOFR | Subordinated Debentures |  |  |  |  |  |
Subordinated Debt |  |  |  |  |  |
Variable rate basis spread |  |  | 0.26% |  |  |

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