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Note 6 - Employee Benefit Plans (Tables)

12 Months Ended

Dec. 27, 2025

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

(in thousands)		2025				2024				2023
Service cost		$	603			$	643			$	551
Interest cost			244				357				510
Expected return on assets			(236	)			(283	)			(331	)
Curtailment			(2,159	)			-				-
Settlements			(1,813	)			(277	)			(177	)
Net periodic costs		$	(3,361	)		$	440			$	553

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

(in thousands)		2025				2024
Change in projected benefit obligation:
Benefit obligation at beginning of year		$	(21,511	)		$	(24,884	)
Service cost			(603	)			(643	)
Interest cost			(244	)			(357	)
Actuarial gain (loss)			2,705				79
Participant contributions			(698	)			(988	)
Benefits paid			271				599
Plan change			(18	)			203
Settlements			8,296				2,820
Plan Curtailment			1,496				-
Foreign currency exchange adjustment			(956	)			1,660
Benefit obligation at end of year			(11,262	)			(21,511	)
Change in plan assets:
Fair value of plan assets at beginning of year			17,458				19,700
Return on assets, net of actuarial gain/loss			(203	)			732
Employer contributions			639				783
Participant contributions			698				988
Benefits paid			(271	)			(599	)
Settlements			(8,296	)			(2,820	)
Foreign currency exchange adjustment			2,084				(1,326	)
Fair value of plan assets at end of year			12,109				17,458
Net asset (liability) at end of year		$	847			$	(4,053	)

Defined Benefit Plan, Assumptions [Table Text Block]

		2025				2024
Discount rate			1.3	%			1.1	%
Compensation increase			2.2	%			1.0	%

		2025				2024				2023
Discount rate			1.3	%			1.1	%			1.5	%
Rate of return on assets			1.3	%			1.3	%			1.5	%
Compensation increase			2.2	%			1.0	%			2.0	%

Schedule of Net Funded Status [Table Text Block]

(in thousands)		2025				2024
Accumulated benefit obligation at beginning of year		$	(1,592	)		$	(1,651	)
Interest cost			(82	)			(75	)
Actuarial (gain) loss			(211	)			25
Benefits paid			118				109
Accumulated benefit obligation at end of year			(1,767	)			(1,592	)
Plan assets at end of year			-				-
Funded status		$	(1,767	)		$	(1,592	)

Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

		2025								2024								2023
						Wt. Avg.								Wt. Avg.								Wt. Avg.
(in thousands, except per share data)		Units				Fair Value				Units				Fair Value				Units				Fair Value
Outstanding, beginning of year			885			$	32.34				884			$	30.52				969			$	24.55
Granted			905			$	18.50				411			$	31.76				365			$	36.66
Released			(374	)		$	32.99				(366	)		$	27.33				(428	)		$	22.33
Cancelled			(76	)		$	28.01				(44	)		$	31.92				(22	)		$	28.62
Outstanding, end of year			1,340			$	23.10				885			$	32.34				884			$	30.52

Schedule of Nonvested Performance-Based Units Activity [Table Text Block]

		2025								2024								2023
						Wt. Avg.								Wt. Avg.								Wt. Avg.
(in thousands, except per share data)		Units				Fair Value				Units				Fair Value				Units				Fair Value
Outstanding, beginning of year			539			$	39.64				408			$	45.65				403			$	28.64
Granted			397			$	13.84				203			$	33.78				270			$	39.97
Released			(70	)		$	33.38				(63	)		$	57.39				(258	)		$	13.18
Cancelled			(119	)		$	35.94				(9	)		$	57.39				(7	)		$	42.52
Outstanding, end of year			747			$	27.05				539			$	39.64				408			$	45.65

Schedule of Share-Based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

Employee Stock Purchase Plan		2025				2024				2023
Expected volatility			41.6	%			35.5	%			36.3	%
Risk-free interest rate			4.5	%			5.3	%			4.5	%
Expected term (years)			0.5				0.5				0.5
Weighted-average grant date fair value per share		$	6.19			$	7.49			$	8.54

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

(in thousands)		2025				2024				2023
Cost of sales		$	1,396			$	1,049			$	845
Research and development			5,456				3,566				3,394
Selling, general and administrative			16,190				16,125				12,998
Share-based compensation			23,042				20,740				17,237
Income tax benefit			137				(211	)			(1,770	)
Total share-based compensation, net of tax		$	23,179			$	20,529			$	15,467

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