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Supplementary cash flows information (Details) - CAD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Changes in non-cash working capital items    
Decrease (increase) in amounts receivable $ 8,290 $ 7,401
Decrease (Increase) in inventory (2,026) 3,161
Increase in other current assets 1,784 (8,133)
Decrease in accounts payable and accrued liabilities (3,293) (12,442)
Non-cash working capital items $ 4,755 $ (10,013)