Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation Plans - Narrative (Details)

v3.20.1
Share-Based Compensation Plans - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
May 03, 2020
USD ($)
multiplier
shares
Apr. 28, 2019
USD ($)
May 03, 2020
USD ($)
day
multiplier
shares
Apr. 28, 2019
USD ($)
Nov. 03, 2019
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation $ 0.2 $ 0.6 $ 0.7 $ 0.7  
Total unrecognized compensation cost 1.4   $ 1.4    
Weighted average vesting period     1 year 6 months 30 days    
Compensation cost not yet recognized, expected in 2020 0.6   $ 0.6    
Compensation cost not yet recognized, expected in 2021 0.6   0.6    
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]          
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   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 $ 0.1        
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 (usd per share) | $ / shares         $ 4.35
Outstanding (shares) | shares 5,465   5,465