Quarterly report pursuant to Section 13 or 15(d)

Schedule of restricted stock units (Details)

v3.22.1
Schedule of restricted stock units (Details) - Stock Option Plan 2015 [Member] - Restricted Stock Awards [Member] - Exercise Price1 [Member]
3 Months Ended
Mar. 31, 2022
$ / shares
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Number Outstanding | shares 1,000,000
Weighted average remaining contractual term 3 years 2 months 12 days
Weighted average exercise price | $ / shares $ 3.01
Number exercisable | shares
Weighted average exercise price | $ / shares $ 3.01