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FAIR VALUE MEASUREMENTS (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Warrant and derivative liabilities $ 67,434 $ 163,989
Level 1 [Member]    
Warrant and derivative liabilities    
Level 2 [Member]    
Warrant and derivative liabilities    
Level 3 [Member]    
Warrant and derivative liabilities $ 67,434 $ 163,989