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Leases - Schedule of Disclosure in Tabular Form Of Expenses Relating to Payments not included (Detail) - CAD ($)
$ in Thousands
9 Months Ended
Jan. 31, 2024
Jan. 31, 2023
Presentation of leases for lessee [abstract]    
Leases of low value assets $ 4 $ 30
Variable lease payments 370 169
Measurement of the lease liability $ 374 $ 199