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Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Numerator:
Net income available to common shareholders	$ 3,112	$ 3,006
Denominator:
Weighted-average common shares outstanding - basic	6,437,231	6,272,847
Common stock equivalents	392,359	390,585
Weighted-average common shares outstanding - diluted	6,829,590	6,663,432
Earnings per common share:
Basic	$ 0.48	$ 0.48
Diluted	$ 0.46	$ 0.45

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Denominator of earnings per share.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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