Government funding (Details) - USD ($)	3 Months Ended
Jan. 31, 2022	Jan. 31, 2021
Government Grants [Abstract]
Office, administrative and travel	$ 341,786	$ 527,195

The amount of expenditure directly attributable to research or development activities, recognised in profit or loss.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2021-01-01
-Paragraph 126
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_126&doctype=Standard
-URIDate 2021-03-24

Name:	ifrs-full_ResearchAndDevelopmentExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration