Annual report pursuant to Section 13 and 15(d)

Shareholders Equity and Capital Stock (Details 8)

v3.20.4
Shareholders Equity and Capital Stock (Details 8) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Expected forfeiture rate 6.10% 6.20%  
Expected volatility 63.20% 58.60%  
Risk free rate 0.40% 1.60%  
Expected dividend rate 0.00% 0.00% 0.00%
Black-Scholes value (CAD$) $ 0.30 $ 0.35  
Warrant Fair Value Assumptions [Member]      
Expected forfeiture rate 0.00% 0.00% 0.00%
Expected life (years) 2 years   3 years
Expected volatility 71.20% 0.00% 55.20%
Risk free rate 0.20% 0.00% 2.20%
Expected dividend rate 0.00% 0.00% 0.00%
Black-Scholes value (CAD$) $ 0.26 $ 0.00 $ 0.34