v3.25.2
Intangibles Assets - Summary of Changes in the Value of the Intangible Assets (Details) - CAD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Disclosure of detailed information about intangible assets [line items]    
Beginning balance $ 23,557  
Ending balance 1,067 $ 23,557
Cost    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 38,814 43,616
Impairments and disposals (21,340) (4,063)
Foreign exchange 1,997 (739)
Ending balance 19,471 38,814
Accumulated Amortization    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 15,257 12,691
Amortization 1,948 2,968
Disposals   (193)
Foreign exchange 1,199 (209)
Ending balance 18,404 15,257
Net Book Value    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 23,557  
Ending balance 1,067 23,557
Internally Generated Development Costs | Cost    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 33 33
Impairments and disposals 0 0
Foreign exchange 0 0
Ending balance 33 33
Internally Generated Development Costs | Accumulated Amortization    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 33 14
Amortization 0 19
Disposals   0
Foreign exchange (0) 0
Ending balance 33 33
Internally Generated Development Costs | Net Book Value    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 0  
Ending balance 0 0
Intellectual Properties | Cost    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 30,718 35,143
Impairments and disposals (21,184) (3,830)
Foreign exchange 1,435 (595)
Ending balance 10,969 30,718
Intellectual Properties | Accumulated Amortization    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 7,366 4,775
Amortization 1,895 2,666
Disposals   0
Foreign exchange 641 (75)
Ending balance 9,902 7,366
Intellectual Properties | Net Book Value    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 23,352  
Ending balance 1,067 23,352
Proprietary Processes | Cost    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 7,927 8,103
Impairments and disposals (156) (40)
Foreign exchange 552 (136)
Ending balance 8,323 7,927
Proprietary Processes | Accumulated Amortization    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 7,722 7,633
Amortization 53 216
Disposals   0
Foreign exchange 548 (127)
Ending balance 8,323 7,722
Proprietary Processes | Net Book Value    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 205  
Ending balance 0 205
Certifications | Cost    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 136 139
Impairments and disposals 0 0
Foreign exchange 10 (3)
Ending balance 146 136
Certifications | Accumulated Amortization    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 136 137
Amortization 0 2
Disposals   0
Foreign exchange 10 (3)
Ending balance 146 136
Certifications | Net Book Value    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance (0)  
Ending balance 0 (0)
Customer List | Cost    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 0 198
Impairments and disposals 0 (193)
Foreign exchange 0 (5)
Ending balance 0 0
Customer List | Accumulated Amortization    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 0 132
Amortization 0 65
Disposals   (193)
Foreign exchange 0 (4)
Ending balance 0 0
Customer List | Net Book Value    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 0  
Ending balance $ 0 $ 0