FAIR VALUE DISCLOSURES (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended		12 Months Ended
	Mar. 31, 2015	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Discount Rate		15.00%
Payments to Acquire Intangible Assets	$ 4,500	$ 4,500	$ 12,517
Long-term Debt, Gross		143,750
Notes Payable, Fair Value Disclosure		163,700
Convertible Debt, Noncurrent		$ 113,672		$ 110,691
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information
Theoretical Interest Rate For Debt Without Embedded Conversion Option				9.00%
Convertible Senior Notes [Member]
Fair Value Inputs, Assets, Quantitative Information
Long-term Debt, Gross				$ 143,800
Exercise Price Of Bond Hedge				$ 69.48
Underlying Shares Of Common Stock Bond Hedge				2,068,792
Class of Warrant or Right, Exercise Price of Warrants or Rights				$ 96.21
Net Adjustments To Additional Paid In Capital Bond Hedge Acquired Warrant Issued Net				$ 15,600