SHARE BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based compensation	$ 401	$ 481	$ 680	$ 730
Cost of Goods Sold
Share-based compensation	16	15	26	21
Research and Development
Share-based compensation	101	132	172	196
Selling, General and Administrative
Share-based compensation	$ 284	$ 334	$ 482	$ 513