STOCK-BASED COMPENSATION (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Total stock-based compensation	$ 1,352	$ 517	$ 4,163	$ 1,269
Cost of Revenues [Member]
Total stock-based compensation		2	5	6
Engineering and Product Development [Member]
Total stock-based compensation		6	14	20
Selling and Marketing [Member]
Total stock-based compensation		8	12	18
General and Administrative [Member]
Total stock-based compensation	697	349	2,204	1,017
Stock based compensation from Plans [Member]
Total stock-based compensation	697	365	2,235	1,061
Stock based compensation from issuances outside Plans [Member]
Total stock-based compensation	$ 655	$ 152	$ 1,928	$ 208