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Federal Income Taxes (Reconciliation of the 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]
Income taxes at 34% statutory rate	$ 5,637	$ 4,903	$ 2,493
Interest income on tax exempt municipal securities	(587)	(643)	(802)
Earnings on corporate owned life insurance policies	(197)	(225)	(346)
Other	329	312	288
Total effect of nontaxable income	(455)	(556)	(860)
Effect of nondeductible expenses	45	46	68
Effect of tax credits	(621)	(617)	(830)
Unrecognized Deferred Tax Benefit on Joint Venture Investment	0	72	116
Federal income tax expense	$ 4,606	$ 3,848	$ 987

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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