Note 2 - Goodwill and Purchased Intangible Assets (Tables)

9 Months Ended

Sep. 24, 2022

Notes Tables

Schedule of Goodwill [Table Text Block]

	Semiconductor
	& Inspection			PCB Test			Total
Balance, December 26, 2020	$	230,724		$	21,580		$	252,304
Sale of PCB Test Business (1)		-			(21,899	)		(21,899	)
Impact of currency exchange		(10,933	)		319			(10,614	)
Balance, December 25, 2021		219,791			-			219,791
Impact of currency exchange		(17,077	)		-			(17,077	)
Balance, September 24, 2022	$	202,714		$	-		$	202,714

Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Table Text Block]

	September 24, 2022						December 25, 2021
					Remaining
					Weighted
	Gross				Average		Gross
	Carrying		Accum.		Amort.		Carrying		Accum.
	Amount		Amort.		Period (years)		Amount		Amort.
Developed technology	$	214,975	$	117,096		3.8	$	229,131	$	104,855
Customer relationships		62,138		28,381		6.8		65,916		26,189
Trade names		19,616		8,580		6.5		20,877		7,714
Covenant not-to-compete		246		141		4.3		308		154
Total intangible assets	$	296,975	$	154,198			$	316,232	$	138,912