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Federal Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Federal statutory tax rate	21.00%	21.00%	21.00%	21.00%
Income taxes at 34% statutory rate	$ 1,156	$ 997	$ 2,508	$ 1,683
Interest income on tax exempt municipal securities	(159)	(191)	(331)	(394)
Earnings on corporate owned life insurance policies	(40)	(113)	(110)	(261)
Other	(7)	(4)	(13)	(8)
Total effect of nontaxable income	(206)	(308)	(454)	(663)
Effect of nondeductible expenses	3	3	12	7
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	72	134	144	266
Federal income tax expense	$ 881	$ 558	$ 1,922	$ 761

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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