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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
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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

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