Income taxes - Schedule of breakdown of research and development expenses (Details) - CAD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2020	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2019
Major components of tax expense (income) [abstract]
R&D expenses		$ 2,064,493	$ 2,369,145	$ 944,909
Less: Investment tax credits		0	(231,007)	(127,325)
R&D expenses, net	$ 817,584	$ 2,064,493	$ 2,138,138	$ 817,584	$ 1,003,705

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 2022-03-24
-Paragraph 126
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_126&doctype=Standard
-URIDate 2022-03-24

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