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Share-Based Compensation Plans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 02, 2020	Jul. 28, 2019	Aug. 02, 2020	Jul. 28, 2019	Nov. 03, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$ 0.4	$ 0.6	$ 1.1	$ 1.3
Deferred cash awards	2.2		2.2
Aggregate cash payments made, in lieu of equity awards			$ 0.4
Options exercised in period (shares)			0
Total unrecognized compensation cost	1.6		$ 1.6
Weighted average vesting period			2 years 2 months 12 days
Compensation cost not yet recognized, expected in 2020	0.3		$ 0.3
Compensation cost not yet recognized, expected in 2021	0.9		0.9
Compensation cost not yet recognized, expected in 2022	0.3		0.3
Compensation cost not yet recognized, expected in 2023	$ 0.1		$ 0.1
Restricted Stock Units (RSUs) and Cash Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of grants in period			$ 0.7		$ 2.1
Restricted Stock Units (RSUs) \| Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					1 year
Restricted Stock Units (RSUs) \| Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					3 years
Performance Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					3 years
Fair value of grants in period					$ 1.2
Performance Stock Units (PSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, payout percentage					0.00%
Performance Stock Units (PSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, payout percentage					150.00%
Performance Stock Units (PSUs) \| Vesting Period One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					1 year
Performance Stock Units (PSUs) \| Vesting Period Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					2 years
Performance Stock Units (PSUs) \| Vesting Period Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					3 years