v3.26.1
Segmented Information and Economic Dependence - Summary of Geographical Segments (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2024
Disclosure Of Geographical Areas [Line Items]      
Revenues $ 15,558 $ 10,626 $ 10,279
Non-current assets 5,156 25,687 48,501
Net income (loss) including discontinued operations (13,949) (30,234) (26,115)
Interest and accretion 226 265 216
Amortization and depreciation 1,604 5,119 5,735
Amortization and depreciation 866 2,289 3,114
United States of America      
Disclosure Of Geographical Areas [Line Items]      
Revenues 10,307 8,663 8,439
Europe      
Disclosure Of Geographical Areas [Line Items]      
Revenues 2,795 393 929
Canada      
Disclosure Of Geographical Areas [Line Items]      
Revenues 322 234 385
Australia      
Disclosure Of Geographical Areas [Line Items]      
Revenues 1,050 896 482
North America      
Disclosure Of Geographical Areas [Line Items]      
Non-current assets 4,741 4,167 4,138
Net income (loss) including discontinued operations 372 699 (449)
Interest and accretion 226 224 231
Amortization and depreciation 758 672 687
North America | Corporate      
Disclosure Of Geographical Areas [Line Items]      
Non-current assets 82 80 80
Net income (loss) including discontinued operations 9,361 (8,142) (7,846)
Interest and accretion 0 44 4
Amortization and depreciation 8 5 5
Belgium      
Disclosure Of Geographical Areas [Line Items]      
Non-current assets 333 268 22,261
Net income (loss) including discontinued operations (8,161) (23,908) (19,009)
Interest and accretion 0 4 0
Amortization and depreciation 98 1,612 2,422
Netherlands      
Disclosure Of Geographical Areas [Line Items]      
Non-current assets 0 21,172 22,022
Net income (loss) including discontinued operations (15,521) 1,117 1,189
Interest and accretion 0 (7) (19)
Amortization and depreciation 2 0 0
Other      
Disclosure Of Geographical Areas [Line Items]      
Revenues $ 1,084 $ 440 $ 44