Note 3 - Revenue From Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Revenue	$ 124,076	$ 190,079	$ 264,891	$ 374,389
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
CHINA
Revenue	$ 48,159	$ 55,834	$ 105,031	$ 111,556
Percentage of revenue	39.00%	30.00%	40.00%	30.00%
JAPAN
Revenue	$ 23,161	$ 38,728	$ 48,149	$ 68,745
Percentage of revenue	19.00%	20.00%	18.00%	18.00%
Other Asia [Member]
Revenue	$ 11,299	$ 24,461	$ 21,867	$ 44,477
Percentage of revenue	9.00%	13.00%	8.00%	12.00%
Asia [Member]
Revenue	$ 82,619	$ 119,023	$ 175,047	$ 224,778
Percentage of revenue	67.00%	63.00%	66.00%	60.00%
Americas [Member]
Revenue	$ 23,609	$ 32,668	$ 55,589	$ 74,571
Percentage of revenue	19.00%	17.00%	21.00%	20.00%
Europe [Member]
Revenue	$ 17,848	$ 38,388	$ 34,255	$ 75,040
Percentage of revenue	14.00%	20.00%	13.00%	20.00%
Sales Channel, Through Intermediary [Member] | Product [Member]
Revenue	$ 112,530	$ 169,362	$ 235,735	$ 330,708
Percentage of revenue	91.00%	89.00%	89.00%	88.00%
Sales Channel, Directly to Consumer [Member] | Product [Member]
Revenue	$ 11,546	$ 20,717	$ 29,156	$ 43,681
Percentage of revenue	9.00%	11.00%	11.00%	12.00%