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WARRANTS, CANCELLATION AND AMENDMENT (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Nov. 30, 2019
Sep. 30, 2018
May 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Oct. 31, 2019
Warrants            
Repurchase of warrants         $ 14  
Warrant reclassified to equity         14,707  
Fair value adjustment of warrants         $ (12,165)  
2014 Warrant Exercise price $352.50            
Warrants            
Repurchase of warrants       $ 14    
Cash compensation to warrant holder     $ 19      
Warranty extension period     2 years      
Warrant reclassified to equity     $ 1      
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 352.50    
Fair value adjustment of warrants     $ 1      
2014 Warrant Exercise price $352.50 | Common Stock            
Warrants            
Number of shares into which a warrant may be converted       11    
2018 Series A Warrant Exercise price            
Warrants            
Class of Warrant or Right, Exercise Price of Warrants or Rights           $ 60.00
Fair value adjustment of warrants $ 666          
2018 Warrants            
Warrants            
Warrant reclassified to equity   $ 14,700        
Fair value adjustment of warrants   $ 764        
Placement Agent Warrants            
Warrants            
Number of shares into which a warrant may be converted 15,168          
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 4.50