Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Market Based Restricted Stock (Details)

v3.20.2
Shareholders' Equity - Market Based Restricted Stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
May 02, 2019
Aug. 03, 2019
Aug. 01, 2020
Aug. 03, 2019
Market Based Stock Restricted Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted, shares 68,000      
Fair Value Assumptions and Methodology [Abstract]        
Total grant date fair value $ 220      
Expected volatility rate 80.00%      
Weighted average expected life (in years) 2 years 11 months 1 day      
Risk-free interest rate 2.50%      
Tranche 1 (One year) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award Vesting Period 1 year      
Fair Value Assumptions and Methodology [Abstract]        
Total grant date fair value per share $ 3.66      
Weighted average expected life (in years) 1 year      
Tranche 2 ($20.00/share) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of consecutive trading days 20 days      
Average closing price for 20 consecutive trading days, Lower range limit for vesting $ 20.00      
Fair Value Assumptions and Methodology [Abstract]        
Total grant date fair value per share $ 3.19      
Weighted average expected life (in years) 3 years 3 months 8 days      
Tranche 3 ($40.00/share) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of consecutive trading days 20 days      
Average closing price for 20 consecutive trading days, Lower range limit for vesting $ 40.00      
Continuous employment requisite period 2 years      
Fair Value Assumptions and Methodology [Abstract]        
Total grant date fair value per share $ 2.85      
Weighted average expected life (in years) 4 years 6 months 10 days      
Market-Based Performance Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted, shares   18,000 0 94,000
Award Vesting Period     3 years 3 years
Fair Value Assumptions and Methodology [Abstract]        
Total grant date fair value   $ 482   $ 482
Weighted average expected life (in years)       3 years
Market-Based Performance Units [Member] | Less than 33% [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of Units Vested     0.00% 0.00%
Market-Based Performance Units [Member] | Greater than 33% [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of Units Vested     50.00% 50.00%
Market-Based Performance Units [Member] | Greater than 50% [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of Units Vested     100.00% 100.00%
Market-Based Performance Units [Member] | Greater than 100% [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of Units Vested     150.00% 150.00%
Minimum [Member] | Market-Based Performance Units [Member]        
Fair Value Assumptions and Methodology [Abstract]        
Total grant date fair value per share       $ 5.14
Expected volatility rate       74.00%
Risk-free interest rate       1.70%
Maximum [Member] | Market-Based Performance Units [Member]        
Fair Value Assumptions and Methodology [Abstract]        
Expected volatility rate       82.00%
Risk-free interest rate       2.30%