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Related party transactions - Schedule of key management personnel compensation (Details) - CAD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disclosure of transactions between related parties [abstract]    
Salaries, benefits, bonuses and consulting fees $ 4,836,192 $ 1,814,115
Share-based payments 12,476,385 3,215,401
Total $ 17,312,577 $ 5,029,516