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Financial Instruments (Details 3) - Currency Risk - CAD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items]    
Net exposure $ (358) $ (25)
Financial Liabilities Denominated in Foreign Currencies    
Disclosure of detailed information about financial instruments [line items]    
Net exposure (41) (80)
Financial Assets Denominated in Foreign Currencies    
Disclosure of detailed information about financial instruments [line items]    
Net exposure $ 399 $ 55