Quarterly report pursuant to Section 13 or 15(d)

Shareholders Equity and Capital Stock (Details 8)

v3.21.2
Shareholders Equity and Capital Stock (Details 8) - $ / shares
6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Expected forfeiture rate   6.10% 6.20%     5.60%
Expected volatility   63.20% 58.60%     56.80%
Risk free rate   0.40% 1.60%     1.00%
Expected dividend rate   0.00% 0.00% 0.00% 0.00% 0.00%
Black-Scholes value (CAD$)   $ 0.30 $ 0.35     $ 0.31
Warrant Fair Value Assumptions [Member]            
Expected forfeiture rate 0.00% 0.00%   0.00%    
Expected life (years) 3 years 2 years   3 years    
Expected volatility 69.30% 71.20%   55.20%    
Risk free rate 0.20% 0.20%   2.20%    
Expected dividend rate 0.00% 0.00%   0.00%    
Black-Scholes value (CAD$) $ 0.39 $ 0.26   $ 0.32