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Financial instruments and financial risk management - Additional information (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
CAD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
CAD ($)
Jun. 30, 2020
USD ($)
Jan. 01, 2021
USD ($)
Dec. 31, 2020
USD ($)
Disclosure of risk management strategy related to hedge accounting [line items]                
Impact of net loss $ 121,203 $ (301,789)   $ 109,043   $ 383,837    
Percentage of volatility used was increased     10.00% 10.00%        
Derivative liability     $ 371,925   $ 418,457   $ 32,439,081 $ 17,899,855
Interest rate risk                
Disclosure of risk management strategy related to hedge accounting [line items]                
Impact of net loss       $ 50,000        
Change in market interest rates     1.00% 1.00%        
Foreign exchange risk                
Disclosure of risk management strategy related to hedge accounting [line items]                
Change in the US dollars to Canadian dollar exchange rate     10.00% 10.00%        
Impact of net loss     $ 177,583   $ 29,708 $ 365,000