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STOCKHOLDERS' EQUITY (Series B Preferred Stock) (Details) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2017
Sep. 30, 2018
Mar. 31, 2018
Sep. 30, 2018
Sep. 30, 2017
Apr. 30, 2018
Mar. 21, 2018
Feb. 28, 2018
Dec. 31, 2017
Nov. 30, 2017
Oct. 31, 2017
Aug. 28, 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         $ 5,380,000                
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        
Offering Warrants [Member]                          
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      
Proceeds from issuance of warrants   $ 24,000   $ 795,000                  
Preferred Class B [Member]                          
Class of Stock [Line Items]                          
Preferred stock, par value (in dollars per share)                       $ 0.01 $ 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
Preferred Class B [Member] | Aegis [Member]                          
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                        
Public Stock Offering [Member] | Preferred Class B [Member]                          
Class of Stock [Line Items]                          
Shares sold in offering (in shares) 6,000                        
Purchase Agreement 2018 [Member] | Preferred Class B [Member]                          
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]                          
Preferred stock, par value (in dollars per share)             $ 0.01            
Beneficial conversion feature   $ 216,000                      
Inducement Agreement 2018 [Member] | Preferred Class B [Member]                          
Class of Stock [Line Items]                          
Conversion price (in dollars per share)   $ 0.30 $ 0.75 $ 0.30         $ 1.04        
Beneficial conversion feature     $ 40,000