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Note 1 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 27, 2026

Notes Tables

Schedule of Inventory, Current [Table Text Block]

		June 27,				December 27,
		2026				2025
Raw materials and purchased parts		$	92,022			$	84,797
Work in process			26,539				23,388
Finished goods			21,773				20,821
Total inventories		$	140,334			$	129,006

Property, Plant, and Equipment [Table Text Block]

		June 27,				December 27,
		2026				2025
Land and land improvements		$	11,911			$	12,364
Buildings and building improvements			48,163				49,469
Machinery and equipment			105,358				103,273
			165,432				165,106
Less accumulated depreciation and amortization			(89,962	)			(88,119	)
Property, plant and equipment, net		$	75,470			$	76,987

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

		Three Months Ended								Six Months Ended
		June 27,				June 28,				June 27,				June 28,
		2026				2025				2026				2025
Cost of sales		$	219			$	398			$	493			$	723
Research and development			1,073				1,514				2,041				2,733
Selling, general and administrative			5,301				3,763				10,335				8,449
Total share-based compensation			6,593				5,675				12,869				11,905
Income tax effect			206				1,424				43				(391	)
Total share-based compensation, net		$	6,799			$	7,099			$	12,912			$	11,514

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

		Three Months Ended								Six Months Ended
		June 27,				June 28,				June 27,				June 28,
		2026				2025				2026				2025
Weighted average common shares			47,328				46,662				47,162				46,653
Effect of dilutive securities			-				-				-				-
			47,328				46,662				47,162				46,653

Disaggregation of Revenue [Table Text Block]

		Three Months Ended								Six Months Ended
Disaggregated Net Sales		June 27, 2026				June 28, 2025				June 27, 2026				June 28, 2025
Systems		$	70,662			$	39,643			$	120,102			$	75,285
Non-systems			78,340				68,037				154,019				129,192
Total net sales		$	149,002			$	107,680			$	274,121			$	204,477

		Three Months Ended								Six Months Ended
Disaggregated Net Sales		June 27, 2026				June 28, 2025				June 27, 2026				June 28, 2025
Malaysia		$	26,547			$	10,847			$	47,386			$	29,009
Taiwan			19,908				22,581				34,726				28,868
Philippines			17,704				15,803				34,490				28,989
China			17,617				16,971				31,124				31,099
Rest of the World			67,226				41,478				126,395				86,512
Total net sales		$	149,002			$	107,680			$	274,121			$	204,477

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

Three Months Ended

Six Months Ended

June 27,

June 28,

June 27,

June 28,

2026

2025

2026

2025

Customers individually representing more than 10% of net sales

one

*

one

one

Percentage of net sales

11%

*

10%

10%

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