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FAIR VALUE Narratives (Details)
1 Months Ended 12 Months Ended
Jan. 31, 2016
shares
Dec. 31, 2016
simulation
$ / shares
shares
Dec. 31, 2015
shares
Jul. 07, 2015
$ / shares
Jan. 24, 2013
$ / shares
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Common stock warrants issued (in shares)   3,055,555 3,466,841    
Share price (in usd per share) | $ / shares       $ 1.42 $ 6.00
Percentage of simulated equity values below the down-round financing cut-off point   25.00%      
Number of independent simulations | simulation   10      
Simulation period   6 months      
Underlying Shares   6,696,287      
2012 Warrant Liability          
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Common stock warrants issued (in shares)   3,400,000      
Share price (in usd per share) | $ / shares   $ 0.28      
Stock options, fair value assumptions, expected life   1 month 7 days      
Volatility   67.00%      
Risk-free interest rate   0.44%      
Term of U.S. treasury bond   1 year      
2016 Warrant Liability          
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Common stock warrants issued (in shares) 1,800,000        
Share price (in usd per share) | $ / shares   $ 0.28      
Risk-free interest rate   1.70%      
Underlying Shares   800,000      
Volatility Rate   91.00%