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STOCK-BASED COMPENSATION (Details 2)
12 Months Ended
Dec. 31, 2018
$ / shares
shares
Outstanding Options  
Number Outstanding at end | shares 4,840,000
Weighted Averaged Remaining Life 5 years 18 days
Weighted Averaged Exercise Price | $ / shares $ 3.04
Vested Options  
Number Exercisable at end | shares 3,059,000
Weighted Averaged Exercise Price | $ / shares $ 2.14
Weighted Averaged Remaining Life 3 years 7 months 2 days
$0.20 - $0.53 [Member]  
Outstanding Options  
Number Outstanding at end | shares 502,000
Weighted Averaged Remaining Life 2 years 10 months 21 days
Weighted Averaged Exercise Price | $ / shares $ 0.27
Vested Options  
Number Exercisable at end | shares 502,000
Weighted Averaged Exercise Price | $ / shares $ 0.27
Weighted Averaged Remaining Life 2 years 10 months 21 days
$0.65 - $1.80 [Member]  
Outstanding Options  
Number Outstanding at end | shares 952,000
Weighted Averaged Remaining Life 1 year 1 month 24 days
Weighted Averaged Exercise Price | $ / shares $ 0.85
Vested Options  
Number Exercisable at end | shares 938,000
Weighted Averaged Exercise Price | $ / shares $ 0.84
Weighted Averaged Remaining Life 1 year 1 month 27 days
$1.83 - $2.84 [Member]  
Outstanding Options  
Number Outstanding at end | shares 868,000
Weighted Averaged Remaining Life 3 years 26 days
Weighted Averaged Exercise Price | $ / shares $ 2.09
Vested Options  
Number Exercisable at end | shares 698,000
Weighted Averaged Exercise Price | $ / shares $ 2.1
Weighted Averaged Remaining Life 3 years 3 months 8 days
$3.20 - $6.20 [Member]  
Outstanding Options  
Number Outstanding at end | shares 2,510,000
Weighted Averaged Remaining Life 7 years 7 months 28 days
Weighted Averaged Exercise Price | $ / shares $ 4.72
Vested Options  
Number Exercisable at end | shares 913,000
Weighted Averaged Exercise Price | $ / shares $ 4.44
Weighted Averaged Remaining Life 6 years 8 months 23 days
$7.20 - $22.00 [Member]  
Outstanding Options  
Number Outstanding at end | shares 8,000
Weighted Averaged Remaining Life 7 months 13 days
Weighted Averaged Exercise Price | $ / shares $ 10.36
Vested Options  
Number Exercisable at end | shares 8,000
Weighted Averaged Exercise Price | $ / shares $ 10.36
Weighted Averaged Remaining Life 7 months 13 days