Earnings Per Common Share (Reconciliation of Earnings and Shares Used in Calculating Basic and Diluted EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 36,871	$ 47,401	$ 38,065
Weighted average common shares outstanding:
Total shares issued	16,100	16,086	16,056
Unvested restricted stock awards	(5)	(4)	(8)
Treasury shares	(73)	(110)	(138)
Total basic weighted average common shares outstanding	16,022	15,972	15,910
Incremental shares from assumed:
Exercise of stock options			2
Vesting of restricted stock awards	41	59	44
Total diluted weighted average common shares outstanding	16,063	16,031	15,956
Basic earnings per common share	$ 2.30	$ 2.97	$ 2.39
Diluted earnings per common share	$ 2.30	$ 2.96	$ 2.39