Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Share Based Payments - Disclosure Weighted Average Assumptions and Fair Value of Options (Details)

v3.20.4
Share Based Payments - Disclosure Weighted Average Assumptions and Fair Value of Options (Details)
12 Months Ended
Dec. 31, 2020
CAD ($)
year
Dec. 31, 2019
CAD ($)
year
Dec. 31, 2018
CAD ($)
year
Disclosure Of Share-based Payment Arrangements [Abstract]      
Risk-free interest rate 0.34% 1.62% 2.02%
Expected hold period to exercise | year 3.0 3.0 3.0
Expected share price volatility 110.82% 97.90% 81.15%
Expected forfeiture rate 3.67% 3.67% 3.67%
Expected dividend yield 0.00% 0.00% 0.00%
Weighted average fair value of options (cad per share) | $ $ 2.12 $ 0.87 $ 2.67