Leases - Additional Information (Details) - CAD ($) $ in Millions	3 Months Ended
Jul. 31, 2026	Jul. 31, 2025
Presentation of leases for lessee [abstract]
Cash outflow for leases	$ 0.2	$ 0.3

The cash outflow for leases.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
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-IssueDate 2025-01-01
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Name:	ifrs-full_CashOutflowForLeases
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration