Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity - Market Based Restricted Stock Units (Details)

v3.22.1
Shareholders' Equity - Market Based Restricted Stock Units (Details) - USD ($)
12 Months Ended 36 Months Ended
May 02, 2019
Aug. 18, 2016
Jan. 29, 2022
Feb. 01, 2020
Jan. 29, 2022
Fair Value Assumptions and Methodology [Abstract]          
Weighted average expected life (in years)     6 years    
Restricted Stock Total Shareholder Return [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted, shares       94,000  
Fair Value Assumptions and Methodology [Abstract]          
Total grant date fair value       $ 482  
Total grant date fair value per share       $ 5.14  
Weighted average expected life (in years)       3 years  
Lessthan33 [Member] | Restricted Stock Total Shareholder Return [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percentage of Units Vested         0.00%
Greaterthan33 [Member] | Restricted Stock Total Shareholder Return [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percentage of Units Vested         50.00%
Greaterthan50 [Member] | Restricted Stock Total Shareholder Return [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percentage of Units Vested         100.00%
Greaterthan100 [Member] | Restricted Stock Total Shareholder Return [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percentage of Units Vested         150.00%
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 $ 220,000        
Expected volatility rate 80.00%        
Weighted average expected life (in years) 2 years 10 months 24 days        
Risk-free interest rate 2.50%        
Tranche 1 (one year) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percentage of Units Vested     33.30%    
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]          
Percentage of Units Vested   33.30%      
Number of consecutive trading days 20 days        
Average closing price for 20 consecutive trading days, Lower range limit for vesting $ 20.00        
Continuous employment requisite period 1 year        
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 7 days        
Tranche 3 ($40.00/share) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percentage of Units Vested     33.30%    
Award Vesting Period 2 years        
Number of consecutive trading days 20 days        
Average closing price for 20 consecutive trading days, Lower range limit for vesting $ 40.00        
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        
Minimum [Member] | Restricted Stock Total Shareholder Return [Member]          
Fair Value Assumptions and Methodology [Abstract]          
Expected volatility rate       74.00%  
Risk-free interest rate       1.70%  
Maximum [Member] | Restricted Stock Total Shareholder Return [Member]          
Fair Value Assumptions and Methodology [Abstract]          
Expected volatility rate       82.00%  
Risk-free interest rate       2.30%