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Note 9 - Stock-based Compensation - Stock-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Oct. 01, 2022
Sep. 30, 2023
Oct. 01, 2022
Total stock-based compensation $ 16,664 $ 13,958 $ 52,408 $ 41,207
Cost of Sales [Member]        
Total stock-based compensation 1,035 880 3,402 2,705
Research and Development Expense [Member]        
Total stock-based compensation 7,020 4,925 20,006 14,461
Selling, General and Administrative Expenses [Member]        
Total stock-based compensation $ 8,609 $ 8,153 $ 29,000 $ 24,041