Condensed Consolidated Statements of Income [Unaudited] (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Equity-based compensation expense included in cost of revenues	$ 75	$ 71	$ 228	$ 237
Equity-based compensation expenses included in research and development, net	546	568	1,697	1,869
Equity-based compensation expense included in sales and marketing	161	150	491	481
Equity-based compensation expense included in general and administrative	$ 479	$ 507	$ 1,509	$ 1,613