Investment in associates (Details) $ in Thousands	12 Months Ended
Dec. 31, 2022 CAD ($)
Statement [Line Items]
Beginning Balance, Carrying amount	$ 0
Ending Balance, Carrying amount	42,430
Acquisition of equity investment	60,590
Disposal (note 1)	(12,280)
Company's share of net loss of associates	5,880
Dolly Varden [Member]
Statement [Line Items]
Beginning Balance, Carrying amount	0
Ending Balance, Carrying amount	42,303
Acquisition of equity investment	60,439
Disposal (note 1)	(12,280)
Company's share of net loss of associates	5,856
UMS [Member]
Statement [Line Items]
Beginning Balance, Carrying amount	0
Ending Balance, Carrying amount	127
Acquisition of equity investment	151
Disposal (note 1)	0
Company's share of net loss of associates	$ 24

The amount of the unrecognised share of associates' losses if the entity has stopped recognising its share of losses when applying the equity method. [Refer: Associates [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2021-01-01
-Paragraph 22
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_22_c&doctype=Standard
-URIDate 2021-03-24

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