STOCK-BASED COMPENSATION Defined contribution plan and non-cash employer-matching contributions (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Discolusre of Defined Contribution Plan Related Costs, Share-based Payments [Abstract]
Defined contribution pan, maximum annual contribution per employee percent	15.00%
Defined contribution plan, employer matching contribution percent	3.00%
Expense recognized for the 401(k) plan	$ 20	$ 75
Number of shares of the Company's common stock issued (in thousands)	0	116
Market value per share of the Company's common stock on contribution date (in dollars)	$ 0.00	$ 2.71
Non-cash contribution made for employer matching liability	$ 0	$ 314