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Stock Plans and Stock Compensation Expense (Stock Options) (Details)
12 Months Ended
May 30, 2022
shares
May 30, 2017
day
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 26, 2020
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Minimum market value (in dollars per share) | $ / shares     $ 5.00 $ 5.00
Options outstanding, intrinsic value     $ 0  
Options exercisable, intrinsic value     0  
Unrecognized compensation expense related to stock options     $ 0  
Share-based Payment Arrangement, Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Forfeitures (in shares) | shares   203,000    
Options granted, weighted average exercise price (in dollars per share) | $ / shares   $ 4.30    
Grant-date fair value option   306,000    
Award vesting period   2 years    
Minimum expense(in dollars per share) | $ / shares   $ 7.00    
Trading period | day   5    
Requisite service period   2 years    
Expiration period   5 years    
Expired (in shares) | shares 141,000   141,000