Net Sales by Product Type (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Product Information
Net sales	$ 37,930	$ 49,807	$ 177,051	$ 208,737
Interconnect Microfabrication Group
Product Information
Net sales	30,537	35,318	147,506	134,757
Components Group
Product Information
Net sales	4,071	6,054	19,607	23,349
Semiconductor Group
Product Information
Net sales	$ 3,322	$ 8,435	$ 9,938	$ 50,631