Earnings per Share - Summary of earnings per share computation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Basic
Net income	$ 12,179	$ 5,342
Weighted average shares outstanding for basic earnings per share	7,708,745	7,620,241
Basic earnings per share (in dollars per share)	$ 1.58	$ 0.70
Diluted
Net income	$ 12,179	$ 5,342
Weighted average shares outstanding for basic earnings per share	7,708,745	7,620,241
Add: Dilutive effects of share based awards	593,888	527,234
Average shares and dilutive potential shares	8,302,633	8,147,475
Diluted earnings per share (in dollars per share)	$ 1.47	$ 0.66
Stock options and restricted shares not considered in computing diluted earnings per share because they were anti-dilutive	52,500	69,150