Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Details 2)

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STOCK-BASED COMPENSATION (Details 2) - 2015 Stock Option Plan [Member] - $ 0.50 - 9.76 [Member] - Time Based Shares Options [Member]
3 Months Ended
Mar. 31, 2021
$ / shares
shares
Number Outstanding | shares 3,172,494
Weighted Average Remaining Contractual Term 8 years 1 month 6 days
Weighted Average Exercise Price | $ / shares $ 3.43
Number Exercisable | shares 803,119
Weighted Average Exercise Price | $ / shares $ 2.09