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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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Net income available to common shareholders	$ 7,240	$ 5,510	$ 13,249	$ 10,724
Denominator:
Weighted-average common shares outstanding - basic	7,495,508	7,370,709	7,477,525	7,353,867
Common stock equivalents	260,313	380,437	271,354	385,215
Weighted-average common shares outstanding - diluted	7,755,821	7,751,146	7,748,879	7,739,082
Earnings per common share:
Basic	$ 0.97	$ 0.75	$ 1.77	$ 1.46
Diluted	$ 0.93	$ 0.71	$ 1.71	$ 1.39

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