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Financial Instruments (Details 1)
$ in Thousands
Jun. 30, 2022
CAD ($)
Jun. 30, 2022
USD ($)
Dec. 31, 2021
CAD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Statement [Line Items]          
Marketable securities $ 439,000 $ 439 $ 605,000   $ 2,675
Level 1          
Statement [Line Items]          
Marketable securities 439,000     $ 282  
Level 2          
Statement [Line Items]          
Marketable securities $ 0     $ 323