Supplemental Cash Flow Information - Summary of Non-cash Investing and Financing Transactions (Details) - CAD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Apr. 30, 2025 |
Apr. 30, 2024 |
Apr. 30, 2023 |
|
| Statement of cash flows [abstract] | |||
| Acquisition of building and equipment by lease | $ 995 | $ 7,826 | $ 7,593 |
| Settlement of convertible debentures | $ 4,242 | $ 0 | $ 1,315 |