QUARTERLY SUPPLEMENTAL FINANCIAL DATA (UNAUDITED) (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Inventory write-down	$ 33,000	$ 33,000	$ 3,900