Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 29, 2025	Dec. 28, 2024
Gross Carrying Amount, finite-lived intangible assets	$ 329,155	$ 322,508
Accumulated Amortization	224,407	211,791
Developed Technology Rights [Member]
Gross Carrying Amount, finite-lived intangible assets	233,729	228,789
Accumulated Amortization	$ 173,079	163,453
Finite-Lived Intangible Asset, Useful Life (Year)	3 years 7 months 6 days
Customer Relationships [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 73,857	72,570
Accumulated Amortization	$ 37,513	35,229
Finite-Lived Intangible Asset, Useful Life (Year)	6 years
Trade Names [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 21,334	20,926
Accumulated Amortization	$ 13,621	12,930
Finite-Lived Intangible Asset, Useful Life (Year)	4 years 6 months
Noncompete Agreements [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 235	223
Accumulated Amortization	$ 194	$ 179
Finite-Lived Intangible Asset, Useful Life (Year)	1 year 9 months 18 days