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STOCKHOLDERS' EQUITY (DEFICIT) (Common Stock) (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Aug. 28, 2017
USD ($)
$ / shares
shares
Jun. 29, 2017
USD ($)
shares
Jun. 13, 2017
$ / shares
Sep. 30, 2017
shares
Sep. 30, 2017
USD ($)
shares
Sep. 30, 2016
USD ($)
Dec. 31, 2016
shares
Class of Stock [Line Items]              
Common stock, shares authorized (in shares)       150,000,000 150,000,000   1,806,850
Restricted shares, (in shares)   64,593          
Restricted stock expense | $         $ 28    
Bridge Loan              
Class of Stock [Line Items]              
Debt converted | $ $ 900       $ 1,787 $ 0  
Common Stock              
Class of Stock [Line Items]              
Conversion ratio   0.0333 0.0333        
Conversion price (in dollars per share) | $ / shares     $ 10.2502        
Restricted shares issued (in shares)       0 59,563    
Number of shares converted (in shares) 1,735,419 7,356,170   943,600 943,600    
Issuance of common stock for consulting services in connection with the merger (in shares)   321,821          
Equity instrument fair value | $   $ 2,200          
New shares issued (in shares)   200,081          
Shares issued in connection with business combination (in shares)   1,255,119          
Common Stock | Bridge Loan              
Class of Stock [Line Items]              
Conversion price (in dollars per share) | $ / shares $ 2.50            
Number of shares converted from debt instrument (in shares) 359,999            
Common Stock | Performance Based              
Class of Stock [Line Items]              
New shares issued (in shares)   135,000