Annual report pursuant to Section 13 and 15(d)

STOCK OPTIONS - SUMMARY OF OPTION ACTIVITY (Details)

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STOCK OPTIONS - SUMMARY OF OPTION ACTIVITY (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Payment Arrangement [Abstract]    
Shares, Outstanding, Beginning balance 14,289,643 13,245,366
Shares, Granted 7,373,800 4,536,600
Shares, Exercised (838,600) (427,611)
Shares, Forfeited (5,479,653) (3,064,712)
Shares, Expired (19,085)  
Shares, Outstanding, Ending balance 15,326,105 14,289,643
Shares, Exercisable 9,011,000  
Shares, Vested and expected to vest 14,652,110  
Weighted Average Exercise Price, Outstanding, Beginning balance $ 5.15 $ 5.19
Weighted Average Exercise Price, Granted 2.36 5.00
Weighted Average Exercise Price, Exercised 1.13 1.77
Weighted Average Exercise Price, Forfeited 5.04 5.60
Weighted Average Exercise Price , Expired 6.97  
Weighted Average Exercise Price, Outstanding, Ending balance 4.06 $ 5.15
Weighted Average Exercise Price, Exercisable 4.87  
Weighted Average Exercise Price, Vested and expected to vest $ 4.14  
Weighted Average Remaining Contractual Term in Years, Outstanding 6 years 9 months  
Weighted Average Remaining Contractual Term in Years, Vested 5 years 2 months 19 days  
Weighted Average Remaining Contractual Term in Years, Vested and expected to vest 6 years 7 months 20 days  
Average Intrinsic Value, Outstanding $ 3,529,258  
Average Intrinsic Value, Vested 2,691,592  
Aggregate Intrinsic Value, Vested and expected to vest $ 3,340,598