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CANADIAN EMERGENCY WAGE SUBSIDY - Schedule of Canadian Emergency Wage Subsidy (Details) - Canadian Emergency Wage Subsidy $ in Thousands, $ in Millions	12 Months Ended
	Oct. 30, 2021 CAD ($)	Oct. 30, 2021 USD ($)	Oct. 31, 2020 USD ($)
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit	$ 52.2	$ 41,280	$ 0
Product
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit		4,283	0
Service
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit		2,667	0
CEWS benefit in cost of goods sold
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit		6,950	0
Research and development
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit		29,519	0
Sales and marketing
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit		2,604	0
General and administrative
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit		2,207	0
CEWS benefit in operating expense
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit		$ 34,330	$ 0