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Note 1 - Summary of Significant Accounting Policies - Reported Share-based Compensation in Consolidated Financial Statements (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 29, 2025 | Mar. 30, 2024
Share Based Compensation Expense | $ 6,230 | $ 4,628
Income tax effect | (1,815) | 203
Total share-based compensation, net | 4,415 | 4,831
Cost of Sales [Member] |  |
Share Based Compensation Expense | 325 | 227
Research and Development Expense [Member] |  |
Share Based Compensation Expense | 1,219 | 834
Selling, General and Administrative Expenses [Member] |  |
Share Based Compensation Expense | $ 4,686 | $ 3,567

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