v3.25.2
Segmented Information and Economic Dependence - Summary of Geographical Segments (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2023
Disclosure Of Geographical Areas [Line Items]      
Revenues $ 24,520 $ 24,518 $ 20,665
Non-current assets 25,687 48,501 61,021
Net income (loss) (30,234) (26,115) (26,560)
Interest and accretion 959 854 396
Amortization and depreciation 5,119 5,735 6,685
United States of America      
Disclosure Of Geographical Areas [Line Items]      
Revenues 12,614 12,556 9,365
Europe      
Disclosure Of Geographical Areas [Line Items]      
Revenues 10,178 10,867 9,450
Canada      
Disclosure Of Geographical Areas [Line Items]      
Revenues 234 389 618
Australia      
Disclosure Of Geographical Areas [Line Items]      
Revenues 896 482 630
North America      
Disclosure Of Geographical Areas [Line Items]      
Non-current assets 4,167 4,138 1,025
Net income (loss) 699 (449) (12,601)
Interest and accretion 223 231 19
Amortization and depreciation 672 687 720
North America | Corporate      
Disclosure Of Geographical Areas [Line Items]      
Non-current assets 80 80 89
Net income (loss) (8,142) (7,846) (8,422)
Interest and accretion 39 4 39
Amortization and depreciation 5 11 14
Belgium      
Disclosure Of Geographical Areas [Line Items]      
Non-current assets 268 22,261 40,406
Net income (loss) (23,908) (19,009) (7,024)
Interest and accretion 0 0 20
Amortization and depreciation 1,612 2,422 2,543
Netherlands      
Disclosure Of Geographical Areas [Line Items]      
Non-current assets 21,172 22,022 19,501
Net income (loss) 1,117 1,189 1,487
Interest and accretion 697 619 318
Amortization and depreciation 2,830 2,615 3,408
Other      
Disclosure Of Geographical Areas [Line Items]      
Revenues $ 598 $ 224 $ 602