Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 26, 2022	Mar. 27, 2021
Net sales		$ 197,757	$ 225,488
Cost and expenses:
Cost of sales (1)	[1]	106,601	123,283
Research and development		23,106	23,152
Selling, general and administrative		31,246	32,624
Amortization of purchased intangible assets		8,535	9,244
Restructuring charges		576	1,340
Loss on sale of PCB Test business		0	115
Costs and Expenses, Total		170,064	189,758
Income from operations		27,693	35,730
Other (expense) income:
Interest expense		(981)	(2,575)
Interest income		111	50
Foreign transaction gain (loss)		1,144	(262)
Gain (Loss) on Extinguishment of Debt, Total		(104)	(1,761)
Income from operations before taxes		27,863	31,182
Income tax provision		6,294	3,575
Net income		$ 21,569	$ 27,607
Basic (in dollars per share)		$ 0.44	$ 0.63
Diluted (in dollars per share)		$ 0.44	$ 0.61
Weighted average shares used in computing income per share:
Basic (in shares)		48,778	43,756
Diluted (in shares)		49,569	45,482

[1] Excludes amortization of $6,696 and $7,101 for the three months ended March 26, 2022 and March 27, 2021, respectively.