Stock options (Narrative) (Details)	12 Months Ended
Oct. 31, 2025 USD ($) share shares	Oct. 31, 2024 USD ($) share	Oct. 31, 2023 USD ($) share
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options to be granted \| shares	27,500,000
Stock options maximum term	10 years
Stock options granted			3,000,000
Stock options exercisable	8,750,000	8,750,000
Stock option expense \| $	$ 0	$ 6,517	$ 217,965
Directors, officers, employees and consultants [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options granted	0	0	3,000,000

The number of share options exercisable in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 45
-Subparagraph b
-Clause vii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45_b_vii&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 31
-Subparagraph b
-Clause vii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_31_b_vii&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 31
-Subparagraph b
-Clause vii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_31_b_vii&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant