Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Share-Based Compensation Plans - Narrative (Details) $ / shares in Units, $ in Millions	3 Months Ended		12 Months Ended
	Feb. 02, 2020 USD ($) day multiplier shares	Jan. 27, 2019 USD ($)	Nov. 03, 2019 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$ 0.5	$ 0.1
Total unrecognized compensation cost	$ 2.0
Weighted average vesting period	1 year 10 months 30 days
Compensation cost not yet recognized, expected in 2020	$ 1.2
Compensation cost not yet recognized, expected in 2021	0.6
Compensation cost not yet recognized, expected in 2022	$ 0.2
Equity Awards, Performance Shares (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
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, Performance Shares (PSUs) \| Vesting Period One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
Equity Awards, Performance Shares (PSUs) \| Vesting Period Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	2 years
Equity Awards, Performance Shares (PSUs) \| 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)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Fair value of grants in period	$ 2.1
Equity Awards, Restricted Stock Units (RSUs) \| Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
Equity Awards, Restricted Stock Units (RSUs) \| Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Liability Awards, Performance Shares (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of grants in period	$ 0.1
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
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, 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, 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	$ 0.5
Maximum multiplier for closing stock price on grant date \| multiplier	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 (usd per share) \| $ / shares			$ 4.35
Outstanding (shares) \| shares	5,465