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Marketable Securities (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Dec. 31, 2021
CAD ($)
Dec. 31, 2020
CAD ($)
Marketable Securities      
Marketable securities, beginning $ 2,675,000 $ 2,675 $ 346
Additions, upon acquisition of Eastmain     1,662
Additions   110 102
Sale of marketable securities (1,000,000)    
Realized loss on disposition (311,000)    
Unrealized net gain (loss) on marketable securities   (869) 565
Marketable securities, ending $ 605,000 $ 605 $ 2,675