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Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator:
Net income available to common shareholders	$ 6,009	$ 5,214
Denominator:
Weighted-average common shares outstanding - basic	7,459,342	7,336,839
Common stock equivalents	282,518	390,046
Weighted-average common shares outstanding - diluted	7,741,860	7,726,885
Earnings per common share:
Basic	$ 0.81	$ 0.71
Diluted	$ 0.78	$ 0.67

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