Note 9 - Stock-based Compensation - Stock-based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Share-Based Payment Arrangement, Expense	$ 16,598	$ 16,664	$ 38,311	$ 52,408
Cost of Sales [Member]
Share-Based Payment Arrangement, Expense	(62)	1,035	1,593	3,402
Research and Development Expense [Member]
Share-Based Payment Arrangement, Expense	7,995	7,020	21,958	20,006
Selling, General and Administrative Expenses [Member]
Share-Based Payment Arrangement, Expense	$ 8,665	$ 8,609	$ 14,760	$ 29,000