Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS EQUITY (Details 2)

v3.21.1
STOCKHOLDERS EQUITY (Details 2)
12 Months Ended
Dec. 31, 2020
USD ($)
$ / shares
shares
Total [Member]  
Outstanding at beginning of period | shares 6,922,931
Options outstanding, weighted average remaining contractual life 6 years 6 months
Options outstanding, weighted average exercise price | $ / shares $ 4.40
Options outstanding, aggregate intrinsic value | $ $ 0
Options exercisable | shares 4,544,902
Options exercisable, weighted average remaining contractual life 5 years 4 months 24 days
Options exercisable, weighted average exercise price | $ / shares $ 5.00
Options exercisable, aggregate intrinsic value | $ $ 0
$2.04 - $3.20  
Outstanding at beginning of period | shares 1,328,220
Options outstanding, weighted average remaining contractual life 9 years 2 months 12 days
Options outstanding, weighted average exercise price | $ / shares $ 2.80
Options outstanding, aggregate intrinsic value | $ $ 0
Options exercisable | shares 140,474
Options exercisable, weighted average remaining contractual life 8 years 3 months 18 days
Options exercisable, weighted average exercise price | $ / shares $ 2.95
Options exercisable, aggregate intrinsic value | $ $ 0
$3.22 - $4.83  
Outstanding at beginning of period | shares 3,925,951
Options outstanding, weighted average remaining contractual life 6 years 10 months 24 days
Options outstanding, weighted average exercise price | $ / shares $ 3.62
Options outstanding, aggregate intrinsic value | $ $ 0
Options exercisable | shares 2,787,632
Options exercisable, weighted average remaining contractual life 6 years 7 months 6 days
Options exercisable, weighted average exercise price | $ / shares $ 3.64
Options exercisable, aggregate intrinsic value | $ $ 0
$4.84 - $7.26  
Outstanding at beginning of period | shares 520,607
Options outstanding, weighted average remaining contractual life 5 years 6 months
Options outstanding, weighted average exercise price | $ / shares $ 5.51
Options outstanding, aggregate intrinsic value | $ $ 0
Options exercisable | shares 468,643
Options exercisable, weighted average remaining contractual life 5 years 2 months 12 days
Options exercisable, weighted average exercise price | $ / shares $ 5.48
Options exercisable, aggregate intrinsic value | $ $ 0
$7.56 - $10.80  
Outstanding at beginning of period | shares 1,148,153
Options outstanding, weighted average remaining contractual life 2 years 2 months 12 days
Options outstanding, weighted average exercise price | $ / shares $ 8.39
Options outstanding, aggregate intrinsic value | $ $ 0
Options exercisable | shares 1,148,153
Options exercisable, weighted average remaining contractual life 2 years 2 months 12 days
Options exercisable, weighted average exercise price | $ / shares $ 8.39
Options exercisable, aggregate intrinsic value | $ $ 0