Income Taxes - Reconciliation of income taxes computed at the federal statutory income tax rate to total income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Taxes
Income before income taxes	$ 15,873	$ 11,039
Computed "expected" tax expense	3,333	2,318
State taxes, net of fed	173	201
Cash surrender value of life insurance	(59)	(41)
Other	(27)	7
Provision for income taxes	$ 3,420	$ 2,485