CONVERTIBLE NOTES DERIVATIVE LIABILITY - Narrative (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($) $ / shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Increase or decrease in valuation of embedded derivative liability due to dollar change in stock price	$ 3.3
Increase or decrease in valuation of embedded derivative liability due to percentage change in interest rates	$ 0.8
Embedded Derivative Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in stock price (in usd per share) | $ / shares	$ 1
Change in interest rates (as a percentage)	1.00%