Share-Based Compensation Plans - Transactions Involving Outstanding Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Jan. 31, 2021	Nov. 01, 2020
Share-based Payment Arrangement [Abstract]
Number of stock options outstanding at end of period (shares)	331,944	331,944
Weighted average exercise price of options outstanding at end of period (USD per share)	$ 5.73	$ 5.73
Weighted average contractual life of options outstanding at end of period (in years)	5 years 11 months 19 days	6 years 2 months 19 days
Aggregate intrinsic value of options outstanding at end of period	$ 0	$ 0
Number of stock options exercisable at end of period (shares)	331,944
Weighted average exercise price of options exercisable at end of period (USD per share)	$ 5.73
Weighted average contractual life of options exercisable at end of period (in years)	5 years 11 months 19 days
Aggregate intrinsic value of options exercisable at end of period	$ 0

No definition available.

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

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.

+ References

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- Definition

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

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- Definition

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

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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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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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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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