INTEREST AND OTHER INCOME (EXPENSE), NET (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Income and Expenses [Abstract]
Interest income	$ 0	$ 2	$ 15
Interest expense	(1,573)	(1,685)	(621)
Gain (loss) on disposal of assets	3	509	136
Other income (expense)	(178)	35	464
Interest and other income (expense), net	$ (1,748)	$ (1,139)	$ (6)