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REVENUE, Contract Assets, Liabilities and Accounts Receivable (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Jan. 31, 2021 | Feb. 02, 2020 | Oct. 31, 2020
Contract with Customer, Asset and Liability [Abstract] |  |  |
Contract assets | $ 6,800 |  | $ 6,300
Contract liabilities current | 7,500 |  | 8,000
Contract liabilities non-current | 5,300 |  | $ 5,200
Impairment loss on contract assets | 0 | $ 0 |
Change in Contract with Customer, Liability [Abstract] |  |  |
Revenue from settlement of contract liabilities | $ 2,500 | $ 1,200 |
Minimum [Member] |  |  |
Revenue, Performance Obligation [Abstract] |  |  |
Product invoice term | 30 days |  |
Product warranty period | 1 month |  |
Maximum [Member] |  |  |
Revenue, Performance Obligation [Abstract] |  |  |
Product invoice term | 90 days |  |
Product warranty period | 24 months |  |
IC [Member] | Minimum [Member] |  |  |
Backlog of Orders [Abstract] |  |  |
Customer order, expected satisfaction period | 7 days |  |
IC [Member] | Maximum [Member] |  |  |
Backlog of Orders [Abstract] |  |  |
Customer order, expected satisfaction period | 14 days |  |
FPD [Member] | Minimum [Member] |  |  |
Backlog of Orders [Abstract] |  |  |
Customer order, expected satisfaction period | 14 days |  |
FPD [Member] | Maximum [Member] |  |  |
Backlog of Orders [Abstract] |  |  |
Customer order, expected satisfaction period | 21 days |  |

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- Definition Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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