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Note 9 - Stock-based Compensation (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Oct. 01, 2022 | Dec. 31, 2022 | Sep. 30, 2023 | Oct. 01, 2022
Share-Based Payment Arrangement, Expense | $ 16,664 | $ 13,958 |  | $ 52,408 | $ 41,207
Restricted Stock Units (RSUs) [Member] | Chief Executive Officer [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year) |  |  |  | 3 years |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  |  | 75.00% |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  |  | 75.00% |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche Two [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions |  |  |  | 100.00% |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  |  | 55.00% |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche Three [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  |  | 25.00% |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |  |  |  | 0.00% |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] | Minimum [Member] | TSR Relative To PHLX Semiconductor Sector Index, 75th Percentile [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions |  |  |  | 250.00% |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] | Minimum [Member] | Share-Based Payment Arrangement, Tranche Three [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  |  | 25.00% |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] | Maximum [Member] | TSR Relative To PHLX Semiconductor Sector Index, 75th Percentile [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions |  |  |  | 200.00% |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] | Maximum [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  |  | 250.00% |
Restricted Stock Units (RSUs) [Member] | Executive Officer [Member] | Maximum [Member] | Share-Based Payment Arrangement, Tranche Three [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  |  | 75.00% |
Performance Shares Granted in 2018 [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  |  | 200.00% |
Performance Shares Granted in 2018 [Member] | Executive Officer [Member] | Share-Based Payment Arrangement, Tranche Two [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved |  |  | 200.00% |  |
Performance Shares Granted in 2018 [Member] | Executive Officer [Member] | Minimum [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Based on Market Conditions |  |  |  | 200.00% |
Awards with Market Condition or Performance Condition [Member] |  |  |  |  |
Share-Based Payment Arrangement, Expense | $ 5,100 | $ 5,500 |  | $ 21,000 | $ 18,400

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