v3.26.1
Inventories - Summary of Detailed Information About Inventories (Detail) - CAD ($)
$ in Thousands
Apr. 30, 2026
Apr. 30, 2025
Classes of current inventories [abstract]    
Supplies and parts $ 492 $ 1,714
Antibodies 0 194
Work in process 0 187
Inventories $ 492 $ 2,095