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Note 10 - Income Taxes - Income Taxes Paid, Net (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 27, 2025 | Dec. 28, 2024 | Dec. 30, 2023
Cash paid for income taxes, net of refunds | $ (2,829) | $ 24,926 | $ 44,276
Domestic Tax Jurisdiction [Member] |  |  |
Cash paid for income taxes, net of refunds | 48 |  |
Foreign Tax Jurisdiction [Member] |  |  |
Cash paid for income taxes, net of refunds | (2,877) |  |
Foreign Tax Jurisdiction [Member] | State Administration of Taxation, China [Member] |  |  |
Cash paid for income taxes, net of refunds | 169 |  |
Foreign Tax Jurisdiction [Member] | Federal Ministry of Finance, Germany [Member] |  |  |
Cash paid for income taxes, net of refunds | (8,436) |  |
Foreign Tax Jurisdiction [Member] | National Tax Agency, Japan [Member] |  |  |
Cash paid for income taxes, net of refunds | 1,093 |  |
Foreign Tax Jurisdiction [Member] | Inland Revenue Board of Malaysia [Member] |  |  |
Cash paid for income taxes, net of refunds | 2,474 |  |
Foreign Tax Jurisdiction [Member] | Bureau of Internal Revenue, Philippines [Member] |  |  |
Cash paid for income taxes, net of refunds | 681 |  |
Foreign Tax Jurisdiction [Member] | Inland Revenue, Singapore (IRAS) [Member] |  |  |
Cash paid for income taxes, net of refunds | 763 |  |
Foreign Tax Jurisdiction [Member] | Swiss Federal Tax Administration (FTA) [Member] |  |  |
Cash paid for income taxes, net of refunds | 275 |  |
Foreign Tax Jurisdiction [Member] | Other Foreign Jurisdictions [Member] |  |  |
Cash paid for income taxes, net of refunds | $ 104 |  |

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