Earnings Per Common Share (Schedule of Earnings Per Share Calculation) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income available to common shareholders	$ 10,323	$ 4,678	$ 20,689	$ 7,510
Denominator:
Weighted-average common shares outstanding - basic	7,847,516	7,722,419	7,811,217	7,700,508
Common stock equivalents	140,099	96,232	137,077	122,404
Weighted-average common shares outstanding - diluted	7,987,615	7,818,651	7,948,294	7,822,912
Earnings per common share:
Basic	$ 1.32	$ 0.61	$ 2.65	$ 0.98
Diluted	$ 1.29	$ 0.60	$ 2.60	$ 0.96