XML 121 R81.htm IDEA: XBRL DOCUMENT v3.21.1
Share Option and Warrant Reserves (Details 2)
12 Months Ended
Dec. 31, 2020
shares
$ / shares
Dec. 31, 2019
shares
$ / shares
Share Option And Warrant Reserves    
Number of share options outstanding beginning of the year | shares 5,602,619 4,192,253
Number of share options granted | shares 5,857,459 2,226,184
Number of share options exercised | shares (3,228,182) (625,798)
Number of share options expired | shares (20,272) (155,394)
Number of share options forfeited | shares (70,620) (34,626)
Number of share options outstanding end of the year | shares 8,141,004 5,602,619
Weighted average exercise price outstanding beginning of the year | $ / shares $ 2.96 $ 2.74
Weighted average exercise price granted | $ / shares 2.42 2.83
Weighted average exercise price exercised | $ / shares 2.42 .92
Weighted average exercise price expired | $ / shares 2.90 3.45
Weighted average exercise price forfeited | $ / shares 2.61 2.80
Weighted average exercise price outstanding end of the year | $ / shares $ 2.67 $ 2.96