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Note 11 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 03, 2021 | Jun. 27, 2020 | Jul. 03, 2021 | Jun. 27, 2020 | Jan. 02, 2021
Income Tax Expense (Benefit), Total | $ 641 | $ 845 | $ 1,597 | $ 1,289 |
Other Noncurrent Liabilities [Member] |  |  |  |  |
Liability for Uncertainty in Income Taxes, Noncurrent | 21,900 |  | $ 21,900 |  | $ 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 |  | $ 0 |  |

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