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Note 1 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 29, 2024

Notes Tables

Schedule of Inventory, Current [Table Text Block]

		June 29,				December 30,
		2024				2023
Raw materials and purchased parts		$	95,407			$	103,118
Work in process			26,217				26,820
Finished goods			24,450				25,855
Total inventories		$	146,074			$	155,793

Property, Plant and Equipment [Table Text Block]

		June 29,				December 30,
		2024				2023
Land and land improvements		$	6,999			$	7,301
Buildings and building improvements			46,846				39,677
Machinery and equipment			105,761				108,831
			159,606				155,809
Less accumulated depreciation and amortization			(84,699	)			(86,724	)
Property, plant and equipment, net		$	74,907			$	69,085

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

		Three Months Ended								Six Months Ended
		June 29,				July 1,				June 29,				July 1,
		2024				2023				2024				2023
Cost of sales		$	262			$	216			$	489			$	396
Research and development			1,001				819				1,835				1,685
Selling, general and administrative			4,320				3,397				7,887				6,265
Total share-based compensation			5,583				4,432				10,211				8,346
Income tax effect			8				(62	)			211				(2,838	)
Total share-based compensation, net		$	5,591			$	4,370			$	10,422			$	5,508

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

		Three Months Ended								Six Months Ended
		June 29,				July 1,				June 29,				July 1,
		2024				2023				2024				2023
Weighted average common shares			46,965				47,618				47,049				47,481
Effect of dilutive securities			-				410				-				618
			46,965				48,028				47,049				48,099

Disaggregation of Revenue [Table Text Block]

		Three Months Ended								Six Months Ended
Disaggregated Net Sales		June 29, 2024				July 1, 2023				June 29, 2024				July 1, 2023
Systems		$	35,272			$	87,312			$	72,583			$	190,296
Non-systems			69,429				81,609				139,732				157,996
Total net sales		$	104,701			$	168,921			$	212,315			$	348,292

		Three Months Ended								Six Months Ended
Disaggregated Net Sales		June 29, 2024				July 1, 2023				June 29, 2024				July 1, 2023
United States		$	17,173			$	15,750			$	31,815			$	34,493
China			19,072				28,394				30,816				49,504
Malaysia			13,791				23,258				30,690				55,153
Singapore			12,929				13,988				24,993				24,694
Philippines			9,708				25,359				21,550				57,149
Rest of the World			32,028				62,172				72,451				127,299
Total net sales		$	104,701			$	168,921			$	212,315			$	348,292

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

Three Months Ended

Six Months Ended

June 29,

July 1,

June 29,

July 1,

2024

2023

2024

2023

Customers individually accounting for more than 10% of net sales

*

two

*

one

Percentage of net sales

*

25%

*

13%

*   No single customer represented more than 10% of consolidated net sales.

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