Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic
Net income	$ 8,480	$ 6,379	$ 16,632	$ 11,456
Undistributed earnings allocated to participating securities	(205)	(60)	(346)	(112)
Net income allocated to common shares	$ 8,275	$ 6,319	$ 16,286	$ 11,344
Weighted average common shares outstanding (shares)	15,141,975	15,056,484	15,139,903	15,039,773
Basic earnings per common share (in dollars per share)	$ 0.55	$ 0.42	$ 1.08	$ 0.75
Diluted
Net income allocated to common shares	$ 8,275	$ 6,319	$ 16,286	$ 11,344
Weighted average common shares outstanding for basic earnings per common share (shares)	15,141,975	15,056,484	15,139,903	15,039,773
Add: Dilutive effects of assumed exercises of stock options	92,602	72,967	98,210	59,630
Average shares and dilutive potential common shares (shares)	15,234,577	15,129,451	15,238,113	15,099,403
Diluted earnings per common share (in dollars per share)	$ 0.54	$ 0.42	$ 1.07	$ 0.75