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STOCKHOLDERS' EQUITY (Offering Warrants) (Details) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Feb. 28, 2018
Aug. 31, 2017
Jun. 30, 2018
Jun. 30, 2018
Apr. 30, 2018
Nov. 30, 2017
Class of Stock [Line Items]            
Warrants exercised       300,000    
Offering Warrants            
Class of Stock [Line Items]            
Stock rights issued (in shares)   2,680,000        
Exercise price (in dollars per share) $ 1.04 $ 3.00 $ 0.75 $ 0.75 $ 0.30 $ 1.40
Deemed dividend $ 62,000   $ 63,000      
Warrants exercised     1,821,000 2,121,000