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Income taxes - Schedule of income tax recovery (Details) - CAD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2019
Major components of tax expense (income) [abstract]
Current income tax recovery (expense):	$ 0	$ 0	$ 0	$ 0
Deferred income tax (recovery) expense:	0	(49,442)	0	0
Income tax recovery:	$ 0	$ (49,442)	$ 0	$ 0

- Definition

The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)]

+ References + Details