Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets (Details Textual) $ in Thousands, $ in Millions			3 Months Ended		6 Months Ended
	Jan. 07, 2025 USD ($)	Jan. 07, 2025 SGD ($)	Jun. 28, 2025 USD ($)	Jun. 29, 2024 USD ($)	Jun. 28, 2025 USD ($)	Jun. 29, 2024 USD ($)
Amortization of Intangible Assets			$ 10,081	$ 9,748	$ 19,933	$ 19,543
Tignis, Inc [Member]
Payments to Acquire Businesses, Net of Cash Acquired		$ 34.9			34,935	$ (0)
Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount	$ 5,000
Business Combination, Consideration Transferred	$ 36,600
Business Combination, Acquisition-Related Cost, Expense			$ 100		$ 400