Note 2 - Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 30, 2023	Dec. 31, 2022
Gross Carrying Amount, finite-lived intangible assets	$ 329,301	$ 309,615
Accumulated Amortization	177,531	169,511
Developed Technology Rights [Member]
Gross Carrying Amount, finite-lived intangible assets	233,623	224,253
Accumulated Amortization	$ 137,168	128,938
Remaining Useful Life (Year)	4 years 2 months 12 days
Customer Relationships [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 73,759	64,632
Accumulated Amortization	$ 28,932	31,015
Remaining Useful Life (Year)	7 years 1 month 6 days
Trade Names [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 21,569	20,461
Accumulated Amortization	$ 11,231	9,397
Remaining Useful Life (Year)	5 years 4 months 24 days
Order or Production Backlog [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 100	0
Accumulated Amortization	$ 25	0
Remaining Useful Life (Year)	9 months 18 days
Noncompete Agreements [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 250	269
Accumulated Amortization	$ 175	$ 161
Remaining Useful Life (Year)	3 years