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Asset Retirement Obligations (Details) - CAD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Asset Retirement Obligations      
Refinery $ 1,790 $ 1,336  
Ontario Mineral Properties   338  
Long-term Asset Retirement Obligations $ 1,790 $ 1,674 $ 1,264