Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Jan. 27, 2019	Oct. 29, 2018	Oct. 28, 2018
Disaggregation of Revenue [Line Items]
Cumulative impact of adopting ASU		$ 426
Contract assets	$ 0		$ 0
Long-term contract liabilities	0		$ 0
Deferred fulfillment costs	$ 0
Performance obligation, payment terms description	Customer payment terms vary by arrangement although payments are typically due within 15 - 45 days of invoicing.
Reserve balance	$ 700
Retained Earnings \| Accounting Standards Update 2014-09
Disaggregation of Revenue [Line Items]
Cumulative impact of adopting ASU		$ 426

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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