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Note 4 - Restructuring Charges (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2025	Dec. 28, 2024	Dec. 30, 2023
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	$ 2,159	$ 0	$ 0
Restructuring Charges	10,143	41	2,421
The 2025 Strategic Restructuring [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	2,200
Restructuring Reserve	1,400
Restructuring and Related Cost, Expected Cost	500
Restructuring Charges	8,575
2025 Strategic Restructuring [Member]
Restructuring Charges	10,100
Poway Volume Manufacturing Transition [Member]
Restructuring Charges	2,313
Restructuring Charges, Excluding Cost of Goods Sold	1,700
MCT Integration Program [Member]
Restructuring Charges			2,421
Xcerra Integration Program [Member]
Restructuring Charges	$ 0	$ (465)	$ (62)

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes costs of goods sold.

+ References

No definition available.

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Amount of gain (loss) recognized in net periodic benefit (cost) credit from event reducing expected years of future service of present employees or eliminating accrual of defined benefits for some or all future services of present employees.

+ References

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Amount expected to be recognized in earnings for the specified restructuring cost.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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