Earnings per Common Share - Computation of earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income available to common shareholders (in thousands):
Net income	$ 31,803	$ 25,461
Less: Income attributable to unvested restricted stock awards	(136)	(119)
Net income available to common shareholders	$ 31,667	$ 25,342
Weighted average shares outstanding:
Common shares outstanding, including unvested restricted stock	13,991,875	13,645,600
Less: Unvested restricted stock	(60,034)	(64,014)
Weighted-average common shares outstanding - basic	13,931,841	13,581,586
Earnings per common share - basic	$ 2.27	$ 1.87
Income available to common shareholders (in thousands):
Less: Income attributable to unvested restricted stock awards	$ (135)	$ (117)
Net income available to common shareholders	$ 31,668	$ 25,344
Weighted average shares outstanding:
Common shares outstanding, including unvested restricted stock	13,991,875	13,645,600
Less: Unvested restricted stock	(60,034)	(64,014)
Plus: Effect of dilutive options	152,586	298,009
Weighted-average common shares outstanding - diluted	14,084,427	13,879,595
Earnings per common share - diluted	$ 2.25	$ 1.83