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Note 11 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Apr. 03, 2021 | Mar. 28, 2020 | Jan. 02, 2020
Income Tax Expense (Benefit), Total | $ 956 | $ 444 |
Other Noncurrent Liabilities [Member] |  |  |
Liability for Uncertainty in Income Taxes, Noncurrent | $ 22,300 |  | $ 22,300
Domestic Tax Authority [Member] |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% |  |
Foreign Tax Authority [Member] |  |  |
Deferred Tax Assets, Valuation Allowance, Total | $ 0 |  |

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