Stock Plans and Stock Compensation Expense (Schedule of Restricted Stock Awards) (Details) - Restricted Stock - $ / shares	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Number of Shares
Shares outstanding at the beginning (in shares)	706,275	943,706
Granted (in shares)	443,537	55,000
Vested (in shares)	(237,557)	(241,211)
Forfeited (in shares)	(31,812)	(51,220)
Shares outstanding at the end (in shares)	880,443	706,275
Weighted-Average Grant-Date Fair Value
Outstanding at the beginning (in shares)	$ 3.07	$ 3.14
Granted (in dollars per share)	0.60	0.69
Vested (in dollars per share)	2.41	2.89
Forfeited (in dollars per share)	1.92	2.62
Outstanding at the end (in shares)	$ 2.05	$ 3.07