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