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Federal Income Taxes - Reconciliation of the Provision for Federal Income Taxes - Prior Years (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Income Tax Disclosure [Abstract] |  |  |
Interest income on tax exempt municipal securities |  | $ (490) | $ (552)
Earnings on corporate owned life insurance policies |  | (211) | (193)
Other |  | 497 | 292
Total effect of nontaxable income |  | (204) | (453)
Effect of nondeductible expenses |  | 93 | 86
Effect of tax credits |  | (824) | (602)
Unrecognized deferred tax benefit |  | 0 | 49
Federal income tax expense | $ 5,213 | $ 2,509 | $ 3,665
Tax Jurisdiction of Domicile [Extensible Enumeration] | UNITED STATES | UNITED STATES | UNITED STATES

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