Share-Based Compensation Plans - Narrative (Details) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 28, 2019 USD ($) multiplier shares	Jul. 29, 2018 USD ($)	Jul. 28, 2019 USD ($) day multiplier shares	Jul. 29, 2018 USD ($)	Oct. 28, 2018	Oct. 29, 2017 USD ($) $ / shares	May 01, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$ 0.6	$ (0.3)	$ 1.3	$ 0.7
Total unrecognized compensation cost	3.5		$ 3.5
Weighted average vesting period			2 years 2 months 12 days
Compensation cost not yet recognized, expected in 2019	0.6		$ 0.6
Compensation cost not yet recognized, expected in 2020	2.0		2.0
Compensation cost not yet recognized, expected in 2021	0.7		0.7
Compensation cost not yet recognized, expected in 2022	$ 0.2		$ 0.2
Equity Awards, Performance Shares (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, granted (shares) | shares	237,325
Award vesting period			3 years
Fair value of grants in period	$ 1.0
Equity Awards, Performance Shares (PSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, payout percentage			0.00%
Equity Awards, Performance Shares (PSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, payout percentage			150.00%
Equity Awards, Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, granted (shares) | shares	338,710
Award vesting period			3 years		3 years
Fair value of grants in period	$ 1.9
Equity Awards, Restricted Stock Units (RSUs) | Vesting Period One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			1 year
Equity Awards, Restricted Stock Units (RSUs) | Vesting Period Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			2 years
Equity Awards, Restricted Stock Units (RSUs) | Vesting Period Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Equity Awards, Restricted Stock Units (RSUs) | Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, granted (shares) | shares	86,405
Award vesting period			1 year
Liability Awards, Performance Shares (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of grants in period	$ 0.6
Equity instruments other than options, average stock price prior to end of vesting period, number of trading days | day			20
Maximum multiplier for closing stock price on grant date | multiplier	2		2
Liability Awards, Performance Shares (PSUs) | Vesting Period One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			1 year
Liability Awards, Performance Shares (PSUs) | Vesting Period Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			2 years
Liability Awards, Performance Shares (PSUs) | Vesting Period Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Liability Awards, Performance Shares (PSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, payout percentage			0.00%
Liability Awards, Performance Shares (PSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, payout percentage			200.00%
Liability Awards, Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Fair value of grants in period	$ 0.9
Maximum multiplier for closing stock price on grant date | multiplier	2		2
Liability Awards, Phantom Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period						3 years
Fair value of grants in period	$ 0.1					$ 0.3
Weighted average grant date fair value (in dollars per share) | $ / shares						$ 4.35
Outstanding (shares) | shares	6,012		6,012
2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (shares) | shares							2,500,000