Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Total net revenues	$ 40,378	$ 43,911	$ 36,148	$ 36,247	$ 36,421	$ 40,175	$ 30,387	$ 26,243
Gross Profit	14,601	15,755	13,921	13,635	14,474	15,297	11,770	10,098	$ 57,913	$ 51,640	$ 41,813
Net income (loss)	$ 1,378	$ 2,738	$ 430	$ (676)	$ 1,386	$ 1,615	$ 871	$ 773	$ 3,871	$ 4,646	$ 3,411
Basic earnings (loss) per share	$ 0.13	$ 0.26	$ 0.04	$ (0.06)	$ 0.13	$ 0.16	$ 0.09	$ 0.09	$ 0.36	$ 0.47	$ 0.38
Diluted earnings (loss) per share	$ 0.1	$ 0.21	$ 0.03	$ (0.06)	$ 0.1	$ 0.14	$ 0.08	$ 0.07	$ 0.29	$ 0.37	$ 0.32