Revenue, Product and Geographic Information (Tables)

6 Months Ended

Sep. 29, 2018

Product ang Geographic Information Reporting [Abstract]

Revenue from External Customers by Products and Services [Table Text Block]

	Fiscal quarter ended				Two fiscal quarters ended
(In thousands)	Sep 29, 2018		Sep 30, 2017		Sep 29, 2018		Sep 30, 2017
Printed Circuit Board	$	38,816	$	38,187	$	105,153	$	84,372
Component Test	18,555		7,007		27,960		14,455
Semiconductor	11,227		9,641		30,004		14,822
Industrial Machining	2,665		5,481		5,003		8,760
Service	14,654		10,651		28,421		21,242
Net sales	$	85,917	$	70,967	$	196,541	$	143,651

Revenue from External Customers by Geographic Areas [Table Text Block]

Net sales by geographic area, based on the location of the end user, were as follows:

	Fiscal quarter ended				Two fiscal quarters ended
(In thousands)	Sep 29, 2018		Sep 30, 2017		Sep 29, 2018		Sep 30, 2017
Asia	$	76,334	$	64,053	$	175,700	$	130,616
Europe	6,468		3,978		11,363		5,929
Americas	3,115		2,936		9,478		7,106
Net sales	$	85,917	$	70,967	$	196,541	$	143,651