Share-Based Compensation Plans - Transactions Involving Outstanding Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Nov. 01, 2020	Nov. 03, 2019	Oct. 28, 2018
Number of shares
Outstanding Beginning balance (shares)	603,484	1,600,040
Exercised (shares)	0	(200,000)
Forfeited (shares)	(60,615)	(335,972)
Expired (shares)	(210,925)	(460,584)
Outstanding Ending balance (shares)	331,944	603,484	1,600,040
Unvested (shares)	44,394
Exercisable (shares)	287,550
Weighted average exercise price
Outstanding Beginning balance (USD per share)	$ 6.28	$ 5.25
Exercised (USD per share)		4.35
Forfeited (USD per share)	8.22	5.42
Expired (USD per share)	6.59	5.36
Outstanding Ending balance (USD per share)	5.73	$ 6.28	$ 5.25
Unvested (USD per share)	4.10
Exercisable (USD per share)	$ 5.98
Weighted average contractual life (in years)
Outstanding (in years)	6 years 2 months 19 days	6 years 9 months 21 days	7 years 3 months 7 days
Unvested (in years)	7 years 1 month 2 days
Exercisable (in years)	6 years 1 month 2 days
Aggregate Intrinsic Value (in thousands)
Outstanding		$ 0	$ 0
Unvested
Exercisable

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of non-vested options outstanding.

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Weighted average grant-date fair value of non-vested options outstanding.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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