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STOCKHOLDERS' EQUITY (Series B Preferred Stock) (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2017
Jun. 30, 2018
Mar. 31, 2018
Jun. 30, 2018
Jun. 30, 2017
Apr. 30, 2018
Feb. 28, 2018
Dec. 31, 2017
Nov. 30, 2017
Oct. 31, 2017
Aug. 25, 2017
Class of Stock [Line Items]                      
Preferred stock, par value (in dollars per share)   $ 0.01   $ 0.01       $ 0.01      
Proceeds from Issuance of preferred stock         $ 400,000            
Preferred stock, shares authorized (in shares)   15,000,000   15,000,000       15,000,000      
Preferred stock, shares outstanding (in shares)   47   47       4,935      
Preferred stock, shares issued (in shares)   47   47       4,935      
Aegis                      
Class of Stock [Line Items]                      
Preferred stock, par value (in dollars per share) $ 0.01                    
Share price (in dollars per share) $ 1,000                    
Stock rights issued (in shares) 280,000                    
Warrant unit value (per unit) $ 2,800                    
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   $ 0.75   $ 0.30 $ 1.04   $ 1.40    
Preferred Class B                      
Class of Stock [Line Items]                      
Preferred stock, par value (in dollars per share)                     $ 0.01
Shares callable by warrant (in shares) 400                    
Conversion price (in dollars per share) $ 2.50               $ 1.40 $ 2.50  
Number of shares converted (in shares)       2,340              
Common stock issued on conversion of preferred shares       3,120,000              
Preferred stock, shares authorized (in shares)   6,900   6,900             6,900
Preferred stock, shares outstanding (in shares)   47   47              
Preferred stock, shares issued (in shares)   47   47              
Preferred stock, liquidation preference per share                     $ 1,000
Public Stock Offering | Preferred Class B                      
Class of Stock [Line Items]                      
Shares sold in offering (in shares) 6,000                    
Purchase Agreement 2018 [Member] | Preferred Class B                      
Class of Stock [Line Items]                      
Conversion price (in dollars per share)   $ 1.04   $ 1.04       $ 1.40      
Beneficial conversion feature       $ 1,400,000              
Inducement Agreement 2018 [Member]                      
Class of Stock [Line Items]                      
Beneficial conversion feature   $ 216,000                  
Inducement Agreement 2018 [Member] | Preferred Class B                      
Class of Stock [Line Items]                      
Conversion price (in dollars per share)   $ 0.30 $ 0.75 $ 0.30       $ 1.04      
Beneficial conversion feature     $ 40,000,000