XML 78 R31.htm IDEA: XBRL DOCUMENT v3.21.1
Schedule of Changes in Common Stock Options (Details)
3 Months Ended
Mar. 31, 2021
$ / shares
shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Options, Outstanding at the beginning of the period | shares 3,516,225
Options, Granted | shares 80,000
Options, Exercised | shares (492,875)
Options, Outstanding at the end of the period | shares 3,103,350
Options, Exercisable at the end of the period | shares 2,183,537
Weighted Average Exercise Price, Outstanding at the beginning of the period | $ / shares $ 0.63
Weighted Average Exercise Price, Granted | $ / shares 3.03
Exercised | $ / shares 0.49
Weighted Average Exercise Price, Outstanding at the end of the period | $ / shares 0.71
Weighted Average Exercise Price, Exercisable at the end of the period | $ / shares $ 0.47