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Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 28, 2018 | Dec. 29, 2017 | Jan. 02, 2021 | Dec. 28, 2019 | Dec. 29, 2018 | Dec. 31, 2017 | Dec. 30, 2017
Undistributed Earnings of Foreign Subsidiaries |  |  | $ 3,100 |  |  |  |
Unrecognized Tax Benefits, Ending Balance |  | $ 44,832 | 55,737 | $ 56,962 | $ 58,285 | $ 58,377 | $ 58,377
Unrecognized Tax Benefits that Would Impact Effective Tax Rate |  |  | 53,600 |  |  |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total |  |  | 9,100 |  |  |  |
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions |  | $ 19 | 628 | 1,084 | $ 759 |  |
Unrecognized Tax Benefits, Increase Resulting from Acquisition | $ 334 |  |  | 1,084 |  |  |
Liability for Uncertainty in Income Taxes, Current |  |  | 42,500 |  |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit |  |  | 2,700 |  |  |  |
Significant Change in Unrecognized Tax Benefits Is Reasonably Possible, Amount of Associated Income, Tax Penalties and Interest Accrued |  |  | 400 |  |  |  |
Decrease in Unrecognized Tax Benefits is Reasonably Possible |  |  | 3,100 |  |  |  |
Other Noncurrent Liabilities [Member] |  |  |  |  |  |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total |  |  | 22,300 | $ 24,600 |  |  |
Domestic Tax Authority [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards, Total |  |  | 359,500 |  |  |  |
Tax Credit Carryforward, Amount |  |  | $ 51,700 |  |  |  |
Open Tax Year |  |  | 2017 |  |  |  |
State and Local Jurisdiction [Member] |  |  |  |  |  |  |
Operating Loss Carryforwards, Total |  |  | $ 147,600 |  |  |  |
Tax Credit Carryforward, Amount |  |  | $ 64,900 |  |  |  |
Open Tax Year |  |  | 2016 |  |  |  |
State and Local Jurisdiction [Member] | Non Expiration [Member] |  |  |  |  |  |  |
Tax Credit Carryforward, Amount |  |  | $ 64,500 |  |  |  |
Foreign Tax Authority [Member] |  |  |  |  |  |  |
Open Tax Year |  |  | 2013 |  |  |  |
Foreign Tax Authority [Member] | Philippines Tax Authority [Member] |  |  |  |  |  |  |
Income Tax Examination, Year under Examination |  |  | 2016 2017 |  |  |  |
Foreign Tax Authority [Member] | Israel Tax Authority [Member] |  |  |  |  |  |  |
Income Tax Examination, Year under Examination |  |  | 2013 2014 2015 2016 2017 |  |  |  |

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