FAIR VALUE (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		44 Months Ended
	Sep. 30, 2015	Jan. 31, 2016	Mar. 31, 2016	Mar. 31, 2015	Sep. 29, 2015	Jul. 07, 2015
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Common stock warrants issued (in shares)			2,933,106	1,208,491
Share price (in dollars per share)			$ 0.58			$ 1.42
Percentage of simulated equity values below the down-round financing cut-off point			100.00%
2012 Warrant Liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Common stock warrants issued (in shares)	3,200,000				1,200,000
Stock options, fair value assumptions, expected life			10 months 8 days
Volatility (as a percent)			93.00%
Risk-free interest rate (as a percent)			0.52%
Fair value assumptions, expected term			1 year
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		$ 350	$ 350	$ 145
Total (gains) or losses:
Recognized in earnings			(330)	145
Balance at end of period			$ 20	$ 290
2016 Warrant Liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Common stock warrants issued (in shares)		1,800,000
Volatility (as a percent)			135.00%
Risk-free interest rate (as a percent)			1.21%
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		$ 0	$ 0
Additions			1,437
Total (gains) or losses:
Recognized in earnings			(9)
Balance at end of period			$ 1,446