Earnings per share ("EPS") - Reconciliation of earnings available to common stockholders and basic weighted-average common shares outstanding to diluted weighted average common shares outstanding (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net income	$ 9,174	$ 6,855	$ 29,408	$ 18,772
Dividends to participating securities	(33)	(27)	(101)	(71)
Undistributed earnings allocated to participating securities	(159)	(104)	(529)	(292)
Net income for earnings per share calculation	8,982	6,724	28,778	18,409
Net Income (Loss) Available to Common Stockholders, Diluted	$ 8,982	$ 6,724	$ 28,778	$ 18,409
Weighted average shares outstanding, basic (in shares)	7,553,718	7,677,822	7,582,175	7,721,943
Effect of dilutive equity-based awards (in shares)	58,000	61,000	82,000	58,000
Weighted average shares outstanding, diluted (in shares)	7,612,421	7,738,758	7,664,123	7,779,632
Net earnings per common share:
Basic earnings per common share (in dollars per share)	$ 1.19	$ 0.88	$ 3.80	$ 2.38
Diluted earnings per common share (in dollars per share)	$ 1.18	$ 0.87	$ 3.75	$ 2.37