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NET LOSS PER COMMON SHARE (Details) - shares
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Anti-dilutive    
Total potentially dilutive securities (in shares) 7,810,020 184,130
Warrants.    
Anti-dilutive    
Total potentially dilutive securities (in shares) 7,673,130 86,419
Stock Options    
Anti-dilutive    
Total potentially dilutive securities (in shares) 127,390 81,011
Unvested restricted stock units    
Anti-dilutive    
Total potentially dilutive securities (in shares) 9,500 16,700