Income Taxes - Reconciliation of Expected Tax Benefit with Pretax Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Tax rate applied to income before income taxes	$ 33,335	$ 21,122	$ 27,008
Increase (decrease) resulting from the effects of:
Tax law change	0	(375)	0
Nondeductible acquisition costs	419	199	125
Tax exempt interest on loans, obligations of states and political subdivisions and bank owned life insurance	(1,276)	(1,110)	(1,282)
State income taxes	(813)	(804)	(1,283)
Tax credit investments	(213)	(72)	(72)
Stock compensation	(1,239)	(111)	(698)
Executive compensation disallowance	253	0	0
Other	(5)	142	(36)
Federal tax provision	30,461	18,991	23,762
State tax provision	3,874	3,827	6,111
Total income tax provision	$ 34,335	$ 22,818	$ 29,873