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Financial Instruments - Schedule of Assets and Liabilities (Details) - CAD ($)
$ in Thousands
Jan. 31, 2024
Apr. 30, 2023
Jan. 31, 2023
Apr. 30, 2022
Disclosure Of Financial Instruments [Line Items]        
Cash $ 6,289 $ 8,366 $ 11,409 $ 30,047
Investment 0 115    
Total assets 78,687 77,813    
Liabilities $ (28,869) $ (20,010)