Product and Geographic Information - Net Sales by Product Type (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012
Product Information
Net sales	$ 38,267	$ 37,930	$ 144,086	$ 177,051
Interconnect Microfabrication Group
Product Information
Net sales	25,378	30,537	98,096	147,506
Components Group
Product Information
Net sales	4,354	4,071	20,907	19,607
Semiconductor Group
Product Information
Net sales	$ 8,535	$ 3,322	$ 25,083	$ 9,938