Basis of Presentation - Schedule of 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	$ 5,577	$ 4,664	$ 10,820	$ 9,462
Denominator
Weighted-average number of common shares outstanding	17,738,182	15,197,106	17,685,235	14,984,885
Incremental shares assumed for stock options and RSUs	434,852	487,393	463,478	508,931
Weighted-average number of dilutive shares outstanding	18,173,034	15,684,499	18,148,713	15,493,816
Basic earnings per common share	$ 0.31	$ 0.31	$ 0.61	$ 0.63
Diluted earnings per common share	$ 0.31	$ 0.30	$ 0.60	$ 0.61