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STOCKHOLDERS' EQUITY (Series C Preferred Stock) (Details) - USD ($)
 1 Months Ended 6 Months Ended
Nov. 02, 2017
Aug. 31, 2017
Jun. 30, 2018
Jun. 30, 2017
Apr. 30, 2018
Feb. 28, 2018
Dec. 31, 2017
Nov. 30, 2017
Nov. 06, 2017
Class of Stock [Line Items]                  
Preferred stock, par value (in dollars per share)     $ 0.01       $ 0.01    
Proceeds from Issuance of preferred stock       $ 400,000          
Preferred stock, shares authorized (in shares)     15,000,000       15,000,000    
Preferred stock, shares outstanding (in shares)     47       4,935    
Preferred stock, shares issued (in shares)     47       4,935    
Offering Warrants                  
Class of Stock [Line Items]                  
Stock rights issued (in shares)   2,680,000              
Exercise price (in dollars per share)   $ 3.00 $ 0.75   $ 0.30 $ 1.04   $ 1.40  
Series C Preferred Stock                  
Class of Stock [Line Items]                  
Preferred stock, par value (in dollars per share)                 $ 0.01
Warrants outstanding (in shares)               1,962,857  
Exercise price (in dollars per share)               $ 1.63  
Warrant unit value (per unit)               $ 1,000  
Number of shares converted (in shares)     2,548            
Preferred stock, shares authorized (in shares)     2,748           2,748
Preferred stock, shares outstanding (in shares)     0            
Preferred stock, shares issued (in shares)     0            
Preferred Stock, Liquidation Preference Per Share                 $ 1,000
Common stock issued on conversion of preferred shares     3,345,334            
Placement Agreement [Member] | Series C Preferred Stock                  
Class of Stock [Line Items]                  
Shares sold in offering (in shares) 2,748                
Conversion price (in dollars per share)             $ 1.40    
Purchase Agreement 2018 [Member] | Series C Preferred Stock                  
Class of Stock [Line Items]                  
Conversion price (in dollars per share)     $ 1.04            
Beneficial conversion feature     $ 800,000