Share capital, Authorized (Details)	6 Months Ended	12 Months Ended
Jan. 31, 2025	Jul. 31, 2024
Share capital [Abstract]
Common stock, shares authorized, unlimited	Unlimited	Unlimited

Indicates whether number of common shares permitted to be issued is unlimited. Acceptable value is "Unlimited".

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Name:	us-gaap_CommonStockSharesAuthorizedUnlimited
Namespace Prefix:	us-gaap_
Data Type:	us-types:authorizedUnlimitedItemType
Balance Type:	na
Period Type:	duration