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FAIR VALUE MEASUREMENTS (Details) - Recurring [Member] - Derivative Warrant Liabilities [Member]
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
Changes in level 3 items measured at fair value on a recurring basis [Roll Forward]  
Fair value as of beginning of period $ (1,527)
Total realized and unrealized gains (losses) 1,099 [1]
Issuance of new instruments (7,917)
Reclassify to (deficit) equity 7,851
Fair value, at end of period $ (494)
[1] Included in change in fair value of derivative warrant liabilities in our unaudited condensed consolidated statements of operations.