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Note 2 - Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 27, 2025 | Dec. 28, 2024
--- | --- | ---
Gross Carrying Amount, finite-lived intangible assets | $ 339,306 | $ 322,608
Accumulated Amortization | 260,034 | 211,891
Developed Technology Rights [Member] |  |
Gross Carrying Amount, finite-lived intangible assets | 241,038 | 228,789
Accumulated Amortization | $ 199,776 | 163,453
Remaining Useful Life (Year) | 3 years 6 months |
Customer Relationships [Member] |  |
Gross Carrying Amount, finite-lived intangible assets | $ 75,677 | 72,570
Accumulated Amortization | $ 44,210 | 35,229
Remaining Useful Life (Year) | 5 years 3 months 18 days |
Trade Names [Member] |  |
Gross Carrying Amount, finite-lived intangible assets | $ 22,366 | 20,926
Accumulated Amortization | $ 15,845 | 12,930
Remaining Useful Life (Year) | 4 years 7 months 6 days |
Order or Production Backlog [Member] |  |
Gross Carrying Amount, finite-lived intangible assets | $ 0 | 100
Accumulated Amortization | $ 0 | 100
Remaining Useful Life (Year) | 0 years |
Noncompete Agreements [Member] |  |
Gross Carrying Amount, finite-lived intangible assets | $ 225 | 223
Accumulated Amortization | $ 203 | $ 179
Remaining Useful Life (Year) | 1 year |

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