Share capital, Shares Issued (Details)					1 Months Ended	3 Months Ended
	Mar. 17, 2025 shares	Oct. 29, 2024 USD ($) shares	Oct. 28, 2024 USD ($) shares	Sep. 05, 2024 USD ($) shares	Aug. 31, 2025 USD ($) shares	Oct. 31, 2025 USD ($) shares	Oct. 31, 2024 USD ($)	Jul. 31, 2025 USD ($)	Oct. 29, 2024 $ / shares shares
Class of Stock Disclosures [Abstract]
Number of shares issued (in shares) | shares		9,176
Number of shares issued for settlement of accounts payable (in shares) | shares				1,596
Fair value of shares issued for settlement of accounts payable				$ 47,904
Accounts payable				39,527		$ 1,033,268		$ 1,113,372
Loss on settlement of accounts payable				$ (8,377)		$ 0	$ (8,377)
Shares issued upon conversion of convertible debt (in shares) | shares			2,244
Fair value of mandatory convertible debt before conversion to equity			$ 49,500
Number of shares issued due to warrants exercise (in shares) | shares						121,995			9,176
Warrants exercised price per share (in dollars per share) | $ / shares									$ 13.08
Proceeds from warrant exercises		$ 86,237				$ 0	$ 86,237
Fair value of warrants exercised		$ 303,492
Helena I [Member]
Class of Stock Disclosures [Abstract]
Number of shares issued (in shares) | shares	16,666				300,000
Gross proceeds					$ 756,600