Note 3 - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Revenue	$ 192,169	$ 172,509	$ 566,558	$ 484,396
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
CHINA
Revenue	$ 64,114	$ 75,933	$ 175,670	$ 232,099
Percentage of revenue	34.00%	44.00%	31.00%	48.00%
JAPAN
Revenue	$ 25,689	$ 26,924	$ 94,434	$ 62,784
Percentage of revenue	13.00%	16.00%	17.00%	13.00%
Other Asia [Member]
Revenue	$ 27,532	$ 20,003	$ 72,009	$ 55,449
Percentage of revenue	14.00%	12.00%	12.00%	11.00%
Asia [Member]
Revenue	$ 117,335	$ 122,860	$ 342,113	$ 350,332
Percentage of revenue	61.00%	72.00%	60.00%	72.00%
Americas [Member]
Revenue	$ 33,209	$ 23,154	$ 107,780	$ 66,976
Percentage of revenue	17.00%	13.00%	19.00%	14.00%
Europe [Member]
Revenue	$ 41,625	$ 26,495	$ 116,665	$ 67,088
Percentage of revenue	22.00%	15.00%	21.00%	14.00%
Product [Member] | Sales Channel, Through Intermediary [Member]
Revenue	$ 173,344	$ 154,417	$ 504,052	$ 433,535
Percentage of revenue	90.00%	90.00%	89.00%	89.00%
Product [Member] | Sales Channel, Directly to Consumer [Member]
Revenue	$ 18,825	$ 18,092	$ 62,506	$ 50,861
Percentage of revenue	10.00%	10.00%	11.00%	11.00%