Quarterly report pursuant to Section 13 or 15(d)

The following table presents information pertaining to options outstanding at June 30, 2021: (Details)

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The following table presents information pertaining to options outstanding at June 30, 2021: (Details) - 2015 Stock Option Plan [Member] - Time Based Shares Options [Member] - $ 0.38 - 3.15 [Member]
6 Months Ended
Jun. 30, 2021
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number Outstanding | shares 3,072,494
Weighted Average Remaining Contractual Term 7 years 8 months 12 days
Weighted Average Exercise Price | $ / shares $ 3.41
Number Exercisable | shares 871,244
Weighted Average Exercise Price | $ / shares $ 2.18