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STOCK BASED COMPENSATION (Schedule of Stock Option and Warrant Outstanding and Exercisable) (Details) - Non Qualified Stock Options And Warrants [Member]
9 Months Ended
Sep. 30, 2019
$ / shares
shares
Number of Shares  
Outstanding | shares 18,964,867
Granted | shares 1,122,500
Expired | shares (3,838,600)
Forfeited | shares (151,250)
Outstanding | shares 16,097,517
Exercisable | shares 15,190,336
Exercise Price  
Outstanding (Lower Limit) $ 0.57
Outstanding (Upper Limit) 1.69
Granted (Lower Limit) 0.64
Granted (Upper Limit) 1.05
Expired (Lower Limit) 0.95
Expired (Upper Limit) 1.25
Forfeited (Lower Limit) 0.77
Forfeited (Upper Limit) 1.50
Outstanding (Lower Limit) 0.57
Outstanding (Upper Limit) 1.69
Exercisable (Lower Limit) 0.57
Exercisable (Upper Limit) 1.69
Weighted Average Exercise Price  
Outstanding 0.91
Granted 0.83
Expired 1.13
Forfeited 0.91
Outstanding 0.85
Exercisable $ 0.85