Accounts payable and accrued liabilities (Details) - USD ($)	Oct. 31, 2025	Jul. 31, 2025	Sep. 05, 2024
Related Party Transaction [Line Items]
Accounts payable	$ 1,033,268	$ 1,113,372	$ 39,527
Accrued liabilities	6,582,418	7,059,064
Excise taxes payable	2,410,973	2,410,973
Income taxes payable	99,256	99,256
Accounts payable and accrued liabilities	10,125,915	10,682,665
Accounts payable and accrued liabilities including related party	10,352,325	11,477,655
Related Party [Member]
Related Party Transaction [Line Items]
Accounts payable and accrued liabilities	96,410	271,919
Nonrelated Party [Member]
Related Party Transaction [Line Items]
Accounts payable and accrued liabilities	$ 130,000	$ 523,071