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Intangibles assets (Tables) | 12 Months Ended
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Apr. 30, 2026
Disclosure of detailed information about intangible assets [abstract] |
Summary of Amortization for intangible assets with finite lives is provided over the following terms | Changes in the value of the intangible assets during the years ended April 30, 2026, 2025 and 2024 are as follows:
(in thousands) |  | Internally Generated Development Costs $ |  |  | Intellectual Property $ |  |  | Proprietary Processes $ |  |  | Certifications $ |  |  | Customer List $ |
Cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, April 30, 2024 |  |  | 33 |  |  |  | 30,718 |  |  |  | 7,927 |  |  |  | 136 |  |  |  | 38,814 |
Impairments and disposals |  |  | — |  |  |  | (21,184 | ) |  |  | (156 | ) |  |  | — |  |  |  | (21,340 | )
Foreign exchange |  |  | — |  |  |  | 1,435 |  |  |  | 552 |  |  |  | 10 |  |  |  | 1,997 |
Balance, April 30, 2025 |  |  | 33 |  |  |  | 10,969 |  |  |  | 8,323 |  |  |  | 146 |  |  |  | 19,471 |
Discontinued operations |  |  | — |  |  |  | (4,292 | ) |  |  | (8,080 | ) |  |  | (146 | ) |  |  | (12,518 | )
Foreign exchange |  |  | — |  |  |  | 175 |  |  |  | 8 |  |  |  | — |  |  |  | 183 |
Balance, April 30, 2026 |  |  | 33 |  |  |  | 6,852 |  |  |  | 251 |  |  |  | — |  |  |  | 7,136 |
Accumulated Amortization: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, April 30, 2024 |  |  | 33 |  |  |  | 7,366 |  |  |  | 7,722 |  |  |  | 136 |  |  |  | 15,257 |
Amortization |  |  | — |  |  |  | 1,895 |  |  |  | 53 |  |  |  | — |  |  |  | 1,948 |
Foreign exchange |  |  | — |  |  |  | 641 |  |  |  | 548 |  |  |  | 10 |  |  |  | 1,199 |
Balance, April 30, 2025 |  |  | 33 |  |  |  | 9,902 |  |  |  | 8,323 |  |  |  | 146 |  |  |  | 18,404 |
Discontinued operations |  |  | — |  |  |  | (3,341 | ) |  |  | (8,080 | ) |  |  | (146 | ) |  |  | (11,567 | )
Foreign exchange |  |  | — |  |  |  | 291 |  |  |  | 8 |  |  |  | — |  |  |  | 299 |
Balance, April 30, 2026 |  |  | 33 |  |  |  | 6,852 |  |  |  | 251 |  |  |  | — |  |  |  | 7,136 |
Net Book Value: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
April 30, 2025 |  |  | — |  |  |  | 1,067 |  |  |  | — |  |  |  | — |  |  |  | 1,067 |
April 30, 2026 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |

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- Definition The disclosure of detailed information about intangible assets. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2025-01-01 -Paragraph 118 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2025-en-r&anchor=para_118&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 263 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_263&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 263 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_263&doctype=Standard -URIDate 2025-03-27 + Details
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