Note 11 - Stock-based Compensation - Stock-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Total stock-based compensation	$ 55,530	$ 46,475	$ 40,372
Cost of Sales [Member]
Total stock-based compensation	3,674	3,049	3,179
Research and Development Expense [Member]
Total stock-based compensation	19,645	14,563	10,124
Selling, General and Administrative Expenses [Member]
Total stock-based compensation	$ 32,211	$ 28,863	$ 27,069