Accounts receivable (Tables)

9 Months Ended

12 Months Ended

Jul. 31, 2021

Oct. 31, 2020

Trade and other current receivables [abstract]

Schedule of Detailed Information about Accounts Receivables

	July 31, 2021 $		October 31, 2020 $
Trade receivables		2,877,970		571,300
Harmonized Sales Taxes receivable		378,011		274,998
Other receivables		—		43,931
		3,255,981		890,229

	2020		2019
	$		$
Trade receivables		571,300		32,446
Harmonized Sales Taxes receivable		274,998		447,436
Investment tax credits receivable		—		342,797
Other receivables		43,931		—
		890,229		822,679

Summary of Analysis of Age of Financial Assets that are Past Due

Aging Summary	2020		2019
	$		$
Current		859,753		821,033
1-30 days		—		303
31-60 days		21,455		367
61-90 days		—		—
91 days and over		9,021		976
		890,229		822,679