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Provision for Site Reclamation and Closure (Details) - CAD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Statement [Line Items]    
Balance, beginning of the year $ 4,290,000 $ 2,134,000
Provision, assumed on acquisition of Eastmain   1,849,000
Accretion 69,000 34,000
Change in estimate (169,000) 273,000
Balance, end of the year 4,190,000 4,290,000
Committee Bay    
Statement [Line Items]    
Balance, beginning of the year 2,436,000 2,134,000
Provision, assumed on acquisition of Eastmain   0
Accretion 39,000 29,000
Change in estimate (219,000) 273,000
Balance, end of the year 2,256,000 2,436,000
Quebec    
Statement [Line Items]    
Balance, beginning of the year 1,854,000 0
Provision, assumed on acquisition of Eastmain   1,849,000
Accretion 30,000 5,000
Change in estimate 50,000 0
Balance, end of the year $ 1,934,000 $ 1,854,000