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Financial instruments and financial risk management (Details) - CAD ($)
Dec. 31, 2021
Jun. 30, 2021
IfrsStatementLineItems [Line Items]    
Cash $ 139,541,100 $ 27,988,471
Level 1 of fair value hierarchy [member]    
IfrsStatementLineItems [Line Items]    
Cash 139,541,100 27,988,471
Level 2 of fair value hierarchy [member]    
IfrsStatementLineItems [Line Items]    
Cash
Level 3 of fair value hierarchy [member]    
IfrsStatementLineItems [Line Items]    
Cash