Consolidated Statements of Operations (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity-based compensation expense included in cost of revenues	$ 300	$ 300	$ 253
Equity-based compensation expenses included in research and development, net	2,201	2,381	1,873
Equity-based compensation expense included in sales and marketing	641	621	478
Equity-based compensation expense included in general and administrative	$ 1,950	$ 2,057	$ 1,555