Annual report pursuant to Section 13 and 15(d)

Benefit Plans, Stock Award Plans (Details)

v3.23.1
Benefit Plans, Stock Award Plans (Details)
 12 Months Ended
Jan. 28, 2023
USD ($)
Plan
$ / shares
shares
Jan. 29, 2022
USD ($)
$ / shares
shares
Mar. 18, 2021
$ / shares
Stock Awards [Abstract]      
Total compensation expense recognized | $ $ 200,000 $ 400,000  
Number of employee stock award plans | Plan 4    
Fair Values of Options Granted have been Estimated at the Date of Grant using the Black - Scholes Option Pricing Model [Abstract]      
Dividend yield 0.00% 0.00%  
Weighted average fair value per share of awards granted during the year (in dollars per share) $ 2.09 $ 20.58  
Weighted Average Grant Fair Value [Abstract]      
Share price (in dollars per share) $ 0.87   $ 32.5
Intrinsic value of stock awards outstanding | $ $ 1,065    
Intrinsic value of vested awards | $ $ 0    
Minimum [Member]      
Fair Values of Options Granted have been Estimated at the Date of Grant using the Black - Scholes Option Pricing Model [Abstract]      
Expected stock price volatility 98.60% 100.60%  
Risk-free interest rate 2.73% 1.29%  
Expected award life (in years) 4 years 11 months 4 days 4 years 11 months 4 days  
Maximum [Member]      
Fair Values of Options Granted have been Estimated at the Date of Grant using the Black - Scholes Option Pricing Model [Abstract]      
Expected stock price volatility 140.20% 115.60%  
Risk-free interest rate 4.36% 1.46%  
Expected award life (in years) 7 years 1 month 13 days 6 years 11 months 23 days  
Employee Stock Award Plans [Member]      
Stock Awards [Abstract]      
Unrecognized compensation cost related to stock option awards | $ $ 200,000    
Weighted average period 2 years 10 months 24 days    
Restricted Share [Member]      
Stock Awards [Abstract]      
Unrecognized compensation cost related to stock option awards | $ $ 300,000    
Weighted average period 1 year 6 months    
New Plan [Member]      
Stock Awards [Abstract]      
Equity awards authorized for issuance (in shares) | shares 500,000    
Equity awards granted and are outstanding (in shares) | shares 143,142    
Equity awards vested and exercisable (in shares) | shares 26,696    
Shares available for future grants (in shares) | shares 443,000    
Employee and Director Stock Award Plans [Member]      
Number of Shares Subject to Option [Roll Forward]      
Balance (in shares) | shares 85,965 133,356  
Granted (in shares) | shares 82,500 6,637  
Cancelled/Forfeited (in shares) | shares (44,823) (51,625)  
Exercised (in shares) | shares 0 (2,403)  
Balance (in shares) | shares 123,642 85,965  
Stock Award Exercise Price Range Per Share [Abstract]      
Exercised (in dollars per share) $ 0 $ 7.12  
Weighted Average Exercise Price [Abstract]      
Balance (in dollars per share) 13.41 20.41  
Granted (in dollars per share) 2.09 25.69  
Cancelled/Forfeited (in dollars per share) 10.47 33.36  
Exercised (in dollars per share) 0 7.12  
Balance (in dollars per share) $ 6 $ 13.41  
Other Share Awards [Abstract]      
Balance (in shares) | shares [1] 90,000 0  
Granted (in shares) | shares [1] 9,000 111,500  
Cancelled/Forfeited (in shares) | shares [1] (62,750) (12,500)  
Exercised (in shares) | shares [1] (16,750) (9,000)  
Balance (in shares) | shares [1] 19,500 90,000  
Weighted Average Grant Fair Value [Abstract]      
Balance (in dollars per share) $ 15.39 $ 0  
Granted (in dollars per share) 4.59 16.09  
Cancelled/Forfeited (in dollars per share) (14.11) (18.07)  
Exercised (in dollars per share) (10.92) (20.41)  
Balance (in dollars per share) 18.35 15.39  
Employee and Director Stock Award Plans [Member] | Minimum [Member]      
Stock Award Exercise Price Range Per Share [Abstract]      
Balance (in dollars per share) 3.51 3.51  
Granted (in dollars per share) 0.85 20.41  
Cancelled/Expired (in dollars per share) 0.85 7.12  
Balance (in dollars per share) 0.85 3.51  
Employee and Director Stock Award Plans [Member] | Maximum [Member]      
Stock Award Exercise Price Range Per Share [Abstract]      
Balance (in dollars per share) 97.4 97.4  
Granted (in dollars per share) 6.55 32.54  
Cancelled/Expired (in dollars per share) 50.6 36  
Balance (in dollars per share) $ 97.4 $ 97.4  
[1] Other Share Awards include deferred shares granted to executives and directors.