Stock Plans and Stock Compensation Expense (Stock Options) (Details)		12 Months Ended
	May 25, 2023 USD ($) day $ / shares shares	Dec. 28, 2024 USD ($) $ / shares	Dec. 30, 2023 $ / shares shares	Dec. 25, 2021 $ / 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		$ 32,000
Compensation cost not yet recognized, period for recognition		4 months 24 days
Share-based Payment Arrangement, Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeitures (in shares) | shares	444,000
Options granted, weighted average exercise price (in dollars per share) | $ / shares	$ 1.00	$ 0	$ 1.00
Grant-date fair value option	$ 186,000
Award vesting period	2 years
Minimum expense(in dollars per share) | $ / shares	$ 3.00
Trading period | day	5
Expired (in shares) | shares			25,000