SHARE-BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
SHARE-BASED COMPENSATION
Share-based compensation	$ 741	$ 847	$ 1,468	$ 1,099
Cost of goods sold
SHARE-BASED COMPENSATION
Share-based compensation	14	43	27	75
Selling, general and administrative
SHARE-BASED COMPENSATION
Share-based compensation	640	633	1,269	886
Research and development
SHARE-BASED COMPENSATION
Share-based compensation	87	171	172	138
Inventory
SHARE-BASED COMPENSATION
Total share-based compensation cost capitalized as part of cost of inventory	$ 1	$ 3	$ 5	$ 6