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Income Taxes - Reconciliation of Effective Income Tax Rate (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |
Current federal income tax expense | $ 4,330 | $ 4,033 | $ 3,532
Deferred federal income tax expense/(benefit) | (24) | (15) | 924
Income tax expense | 4,306 | 4,018 | 4,456
Income tax computed at statutory federal rate of 21% | 5,369 | 5,808 | 5,565
Tax exempt interest income | (1,206) | (1,323) | (1,190)
Tax exempt earnings on bank-owned life insurance | (230) | (276) | (170)
Tax credits | (282) | (289) | (284)
Disallowed interest expense | 752 | 179 | 74
Other items | $ (97) | $ (81) | $ 461
Effective income tax rate | 17.00% | 15.00% | 17.00%

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