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Federal Income Taxes (Components of the consolidated provision for federal income taxes) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]      
Currently payable $ 4,593 $ 4,371 $ 1,263
Deferred (benefit) expense 13 (523) (276)
Income tax expense $ 4,606 $ 3,848 $ 987