Net Sales by Product Type (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
Product Information
Net sales	$ 58,969	$ 77,046
Interconnect & Microfabrication Group (IMG)
Product Information
Net sales	47,698	48,212
Semiconductor Group
Product Information
Net sales	3,566	18,025
Components Group
Product Information
Net sales	$ 7,705	$ 10,809