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STOCKHOLDERS' EQUITY (DEFICIT) (Side Warrants) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2017
Jun. 29, 2017
Jun. 30, 2016
Class of Warrant or Right [Line Items]      
Underlying shares (in shares) 6,197,681   1,958,166
Exercise price (in dollars per share)     $ 0.00
Warrants, fair value   $ 211,000 $ 1,421,738
Merger advisory fees $ 2,676,000    
Upon Execution      
Class of Warrant or Right [Line Items]      
Underlying shares (in shares) 22,857    
Performance Based      
Class of Warrant or Right [Line Items]      
Underlying shares (in shares) 68,572    
Common Stock [Member]      
Class of Warrant or Right [Line Items]      
Underlying shares (in shares)   45,600  
Exercise price (in dollars per share)   $ 7.50  
Side Warrants [Member]      
Class of Warrant or Right [Line Items]      
Underlying shares (in shares) 91,429    
Exercise price (in dollars per share) $ 7.00    
Warrants, fair value $ 487,000    
Class of warrant or right, term 5 years    
Merger advisory fees $ 487,000    
Side Warrants [Member] | Common Stock [Member]      
Class of Warrant or Right [Line Items]      
Underlying shares (in shares) 91,429