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Shareholders' Equity - Stock Option Awards - Outstanding Stock Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Apr. 30, 2022
Jan. 29, 2022
The 2020 Equity Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options outstanding 148,500 147,500
Options outstanding, weighted average exercise price $ 7.20 $ 7.33
Options outstanding, weighted average remaining contractual life 9 years 3 months 18 days  
Options outstanding, aggregate intrinsic value $ 0  
Vested or expected to vest, outstanding 130,800  
Vested or expected to vest, outstanding, weighted average exercise price $ 7.22  
Vested or expected to vest, outstanding, weighted average remaining contractual life 9 years 3 months 18 days  
Vested or expected to vest, outstanding, aggregate intrinsic value $ 0  
A 2011 Omnibus Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options outstanding 19,200 25,700
Options outstanding, weighted average exercise price $ 9.60 $ 10.04
Options outstanding, weighted average remaining contractual life 5 years 9 months 18 days  
Options outstanding, aggregate intrinsic value $ 0  
Vested or expected to vest, outstanding 18,700  
Vested or expected to vest, outstanding, weighted average exercise price $ 9.75  
Vested or expected to vest, outstanding, weighted average remaining contractual life 5 years 8 months 12 days  
Vested or expected to vest, outstanding, aggregate intrinsic value $ 0  
A2004 Omnibus Incentive Stock Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options outstanding 3,000 3,000
Options outstanding, weighted average exercise price $ 54.70 $ 53.49
Options outstanding, weighted average remaining contractual life 1 year 10 months 24 days  
Options outstanding, aggregate intrinsic value $ 0  
Vested or expected to vest, outstanding 3,000  
Vested or expected to vest, outstanding, weighted average exercise price $ 54.70  
Vested or expected to vest, outstanding, weighted average remaining contractual life 1 year 10 months 24 days  
Vested or expected to vest, outstanding, aggregate intrinsic value $ 0