Note 2 - Goodwill and Purchased Intangible Assets (Tables)

3 Months Ended

Mar. 26, 2022

Notes Tables

Schedule of Goodwill [Table Text Block]

	Semiconductor Test
	& 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		(3,557	)		-			(3,557	)
Balance, March 26, 2022	$	216,234		$	-		$	216,234

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

	March 26, 2022						December 25, 2021
					Remaining
					Weighted
	Gross				Average		Gross
	Carrying		Accum.		Amort.		Carrying		Accum.
	Amount		Amort.		Period (years)		Amount		Amort.
Developed technology	$	226,203	$	110,082		4.3	$	229,131	$	104,855
Customer relationships		65,123		27,175		7.2		65,916		26,189
Trade names		20,607		8,071		7.1		20,877		7,714
Covenant not-to-compete		289		151		4.8		308		154
Total intangible assets	$	312,222	$	145,479			$	316,232	$	138,912