SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2013	Jul. 26, 2013	Jan. 02, 2013
Foreign currency translation
Net foreign exchange losses recognized in other income	$ (100)	$ (200)	$ (1,300)
Reclassification of Warrants
Warrant liability						$ 16,200
Initial fair value of warrants recorded within stockholders equity that was reversed						11,200
Change in fair value related to periods prior to January 1, 2013 recorded as an increase to accumulated deficit						$ 5,000
Change in fair value of warrant liability included in net loss	$ 0	4,517	$ 19,799
Reclassification of Share-based compensation liability
Share-based compensation liability					$ 1,100
Increase in additional paid-in capital due to reclassification of share-based compensation liability		300
Increase in stock compensation expense		$ 1,400
Fair value of liability options				$ 2,200