Condensed Consolidated Statements of Operations (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity-based compensation expense included in cost of revenues	$ 109	$ 114	$ 346	$ 320
Equity-based compensation expenses included in research and development, net	677	781	2,202	2,134
Equity-based compensation expense included in sales and marketing	442	283	1,318	854
Equity-based compensation expense included in general and administrative	$ 645	$ 574	$ 1,972	$ 1,703