Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Reconciliation of the component parts of earnings per share [Abstract]
Net income	$ 17,871	$ 17,089	$ 14,433	$ 14,083	$ 34,960	$ 28,516
Weighted average common shares (in shares)	19,153		19,281		19,185	19,284
Stock Options (in shares)	0		9		0	8
Weighted average common shares including potential dilutive shares (in shares)	19,153		19,290		19,185	19,292
Basic EPS (in dollars per share)	$ 0.933		$ 0.749		$ 1.822	$ 1.479
Diluted EPS (in dollars per share)	$ 0.933		$ 0.748		$ 1.822	$ 1.478
Stock Options [Member]
Antidilutive Securities [Abstract]
Number of anti-dilutive stock options excluded from diluted earnings per share (in shares)	9,352		0		5,751	0