Note 3 - Revenue From Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Revenue	$ 509,401	$ 737,154	$ 660,356
Percentage of revenue	100.00%	100.00%	100.00%
CHINA
Revenue	$ 206,380	$ 239,192	$ 296,917
Percentage of revenue	40.00%	32.00%	45.00%
JAPAN
Revenue	$ 81,043	$ 110,403	$ 90,902
Percentage of revenue	16.00%	15.00%	14.00%
Other Asia [Member]
Revenue	$ 45,324	$ 94,170	$ 77,085
Percentage of revenue	9.00%	13.00%	12.00%
Asia [Member]
Revenue	$ 332,747	$ 443,765	$ 464,904
Percentage of revenue	65.00%	60.00%	71.00%
Americas [Member]
Revenue	$ 101,217	$ 145,839	$ 100,260
Percentage of revenue	20.00%	20.00%	15.00%
Europe [Member]
Revenue	$ 75,437	$ 147,550	$ 95,192
Percentage of revenue	15.00%	20.00%	14.00%
Sales Channel, Through Intermediary [Member] | Product [Member]
Revenue	$ 455,160	$ 644,181	$ 591,229
Percentage of revenue	89.00%	87.00%	89.00%
Sales Channel, Directly to Consumer [Member] | Product [Member]
Revenue	$ 54,241	$ 92,973	$ 69,127
Percentage of revenue	11.00%	13.00%	11.00%