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CONVERTIBLE PREFERRED STOCK AND WARRANTS (Details 1) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($)
Beginning Balance | $ 12,613
Issuances |
Exchange of warrant | $ (10,546)
Effect of change in exercise price | (1,081)
Change in fair value | (719)
Ending Balance | 267
2013 Investor Warrants [Member] |
Beginning Balance | $ 10,546
Issuances |
Exchange of warrant | $ (10,546)
Effect of change in exercise price |
Change in fair value |
2013 Placement Agent Warrants [Member] |
Beginning Balance | $ 998
Issuances |
Exchange of warrant |
Effect of change in exercise price |
Change in fair value | $ (731)
Ending Balance | 267
2010 Investor Warrants [Member] |
Beginning Balance | $ 1,065
Issuances |
Exchange of warrant |
Effect of change in exercise price | $ (1,081)
Change in fair value | 16
2010 Placement Agent Warrants [Member] |
Beginning Balance | $ 4
Issuances |
Exchange of warrant |
Effect of change in exercise price |
Change in fair value | $ (4)

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