Restoration provisions - Additional Information (Detail) - USD ($)	Apr. 30, 2022	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Statement [Line Items]
Long term provision for decommissioning restoration and rehabilitation costs	$ 433,280	$ 334,233	$ 321,400	$ 0
Weighted average risk free interest rate		0.61%

The amount of non-current provision for decommissioning, restoration and rehabilitation costs. [Refer: Provision for decommissioning, restoration and rehabilitation costs]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2021-01-01
-Section D Examples: disclosures
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-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
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-Paragraph 87
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-URIDate 2021-03-24

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