Non-controlling interest (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2025	Aug. 31, 2024
Notes and other explanatory information [abstract]
Balance at beginning of year	$ 11,136	$ 7,156
Non-controlling interest's 45% share of Buckreef Gold's comprehensive earnings	5,879	3,980
Balance at end of year	$ 17,015	$ 11,136

The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Total for all subsidiaries [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 10
-IssueDate 2024-01-01
-Paragraph 22
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=10&code=ifrs-tx-2024-en-r&anchor=para_22&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2024-01-01
-Paragraph 12
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_f&doctype=Standard
-URIDate 2024-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 54
-Subparagraph q
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_q&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_NoncontrollingInterests
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant