Note 12 - Income Taxes - Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Balance	$ 79,100	$ 140,533	$ 200,438
Charged (Credit) to costs and expenses	3,584	(61,433)	(59,905)
Charged (credit) to other accounts	0	0	0
Balance	82,684	79,100	140,533
Charged (credit) to other accounts	$ (0)	$ 0	$ 0