Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic earnings per share
Net income	$ 8,411	$ 6,326	$ 18,362	$ 18,143
Weighted-average common shares (in shares)	9,773,175	9,979,603	9,825,683	10,114,303
Basic earnings per common share ( in dollars per share)	$ 0.86	$ 0.63	$ 1.87	$ 1.79
Diluted earnings per share
Net income	$ 8,411	$ 6,326	$ 18,362	$ 18,143
Weighted-average common shares (in shares)	9,773,175	9,979,603	9,825,683	10,114,303
Dilutive effect of equity compensation (in shares)	49	1,009	1,499	2,204
Weighted-average common and incremental shares (in shares)	9,773,224	9,980,612	9,827,182	10,116,507
Diluted earnings per common share (in dollars per share)	$ 0.86	$ 0.63	$ 1.87	$ 1.79
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	55,309	38,212