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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 | 6 Months Ended
--- | --- | ---
Jun. 28, 2025 | Jun. 29, 2024 | Jun. 28, 2025 | Jun. 29, 2024
Share Based Compensation Expense | $ 5,675 | $ 5,583 | $ 11,905 | $ 10,211
Income tax effect | 1,424 | 8 | (391) | 211
Total share-based compensation, net | 7,099 | 5,591 | 11,514 | 10,422
Cost of Sales [Member] |  |  |  |
Share Based Compensation Expense | 398 | 262 | 723 | 489
Research and Development Expense [Member] |  |  |  |
Share Based Compensation Expense | 1,514 | 1,001 | 2,733 | 1,835
Selling, General and Administrative Expenses [Member] |  |  |  |
Share Based Compensation Expense | $ 3,763 | $ 4,320 | $ 8,449 | $ 7,887

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