Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net income	$ 5,412	$ 4,161	$ 7,281	$ 8,696
Earnings allocated to participating securities	(110)	(73)	(131)	(143)
Numerator for earnings per common share	$ 5,302	$ 4,088	$ 7,150	$ 8,553
Denominator:
Denominator for basic earnings per common share	18,574,300	18,666,853	18,916,686	18,714,088
Effect of dilutive securities:
Stock compensation	102,261	197,124	18,918	172,332
Denominator for diluted earnings per common share	18,676,561	18,863,977	18,935,604	18,886,420
Earnings per common share:
Basic	$ 0.29	$ 0.22	$ 0.38	$ 0.46
Diluted	$ 0.28	$ 0.22	$ 0.38	$ 0.46