Note 3 - Revenue From Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Revenue	$ 127,091	$ 192,169	$ 391,982	$ 566,558
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
CHINA
Revenue	$ 49,671	$ 64,114	$ 154,702	$ 175,670
Percentage of revenue	39.00%	34.00%	39.00%	31.00%
JAPAN
Revenue	$ 16,633	$ 25,689	$ 64,782	$ 94,434
Percentage of revenue	13.00%	13.00%	17.00%	17.00%
Other Asia [Member]
Revenue	$ 13,508	$ 27,532	$ 35,375	$ 72,009
Percentage of revenue	11.00%	14.00%	9.00%	12.00%
Asia [Member]
Revenue	$ 79,812	$ 117,335	$ 254,859	$ 342,113
Percentage of revenue	63.00%	61.00%	65.00%	60.00%
Americas [Member]
Revenue	$ 19,156	$ 33,209	$ 74,745	$ 107,780
Percentage of revenue	15.00%	17.00%	19.00%	19.00%
Europe [Member]
Revenue	$ 28,123	$ 41,625	$ 62,378	$ 116,665
Percentage of revenue	22.00%	22.00%	16.00%	21.00%
Sales Channel, Through Intermediary [Member] | Product [Member]
Revenue	$ 120,266	$ 173,344	$ 356,001	$ 504,052
Percentage of revenue	95.00%	90.00%	91.00%	89.00%
Sales Channel, Directly to Consumer [Member] | Product [Member]
Revenue	$ 6,825	$ 18,825	$ 35,981	$ 62,506
Percentage of revenue	5.00%	10.00%	9.00%	11.00%