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Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets (Details Textual) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 07, 2025	Jun. 27, 2026	Jun. 28, 2025	Jun. 27, 2026	Jun. 28, 2025
Intangible Asset, Finite-Lived, Amortization Expense		$ 7,277	$ 10,081	$ 14,577	$ 19,933
Tignis, Inc [Member]
Payments to Acquire Businesses, Net of Cash Acquired	$ 34,900			$ (0)	34,935
Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount	5,000
Business Combination, Contingent Consideration, Liability	1,700
Business Combination, Consideration Transferred	$ 36,600
Business Combination, Acquisition-Related Cost, Expense			$ 100		$ 400

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Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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Amount of expense for acquisition-related cost incurred to effect business combination. Includes, but is not limited to, finder's fee; advisory, legal, accounting, valuation, and other professional and consulting fees; and general administrative cost, including cost of maintaining internal acquisition department.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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