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STOCK-BASED COMPENSATION (Details 2)
9 Months Ended
Sep. 30, 2019
$ / shares
shares
Outstanding Options  
Number Outstanding at end | shares 5,329,000
Weighted Averaged Remaining Life 6 years 1 month 6 days
Weighted Averaged Exercise Price | $ / shares $ 3.66
Vested Options  
Number Exercisable at end | shares 2,305,000
Weighted Averaged Exercise Price | $ / shares $ 2.76
Weighted Averaged Remaining Life 3 years 10 months 2 days
$0.20 - $0.53 [Member]  
Outstanding Options  
Number Outstanding at end | shares 359,000
Weighted Averaged Remaining Life 3 years 5 months 12 days
Weighted Averaged Exercise Price | $ / shares $ 0.27
Vested Options  
Number Exercisable at end | shares 359,000
Weighted Averaged Exercise Price | $ / shares $ 0.27
Weighted Averaged Remaining Life 3 years 5 months 12 days
$0.65 - $1.80 [Member]  
Outstanding Options  
Number Outstanding at end | shares 342,000
Weighted Averaged Remaining Life 1 year 7 months 6 days
Weighted Averaged Exercise Price | $ / shares $ 1.05
Vested Options  
Number Exercisable at end | shares 342,000
Weighted Averaged Exercise Price | $ / shares $ 1.05
Weighted Averaged Remaining Life 1 year 7 months 6 days
$1.83 - $2.84 [Member]  
Outstanding Options  
Number Outstanding at end | shares 554,000
Weighted Averaged Remaining Life 10 months 6 days
Weighted Averaged Exercise Price | $ / shares $ 2.06
Vested Options  
Number Exercisable at end | shares 555,000
Weighted Averaged Exercise Price | $ / shares $ 2.07
Weighted Averaged Remaining Life 2 years 10 months 6 days
$3.20 - $6.20 [Member]  
Outstanding Options  
Number Outstanding at end | shares 4,074,000
Weighted Averaged Remaining Life 7 years 1 month 28 days
Weighted Averaged Exercise Price | $ / shares $ 4.39
Vested Options  
Number Exercisable at end | shares 1,049,000
Weighted Averaged Exercise Price | $ / shares $ 4.52
Weighted Averaged Remaining Life 5 years 2 months 23 days
$7.20 - $22.00 [Member]  
Outstanding Options  
Number Outstanding at end | shares 0
Weighted Averaged Remaining Life 0 years
Weighted Averaged Exercise Price | $ / shares $ 0
Vested Options  
Number Exercisable at end | shares 0
Weighted Averaged Exercise Price | $ / shares $ 0
Weighted Averaged Remaining Life 0 years