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Note 9 - Stock-based Compensation (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 9 Months Ended
Oct. 01, 2022
Oct. 02, 2021
Oct. 01, 2022
Oct. 02, 2021
Oct. 01, 2022
Oct. 02, 2021
Share-Based Payment Arrangement, Expense     $ 13,958 $ 10,250 $ 41,207 $ 32,624
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%  
Share-Based Payment Arrangement, Expense $ 5,500 $ 4,000     $ 18,400 $ 15,300
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, Based on Market Conditions         200.00%  
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]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Of Market Condition Achieved 200.00%          
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]            
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] | 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] | 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%  
Performance Shares [Member] | Share-Based Payment Arrangement, Tranche Four [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage         40.00%  
Performance Shares [Member] | Share-Based Payment Arrangement, Tranche Five [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage         40.00%  
Performance Shares [Member] | Share-Based Payment Arrangement, Tranche Six [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage         70.00%