Product and Geographic Information - Net Sales by Product Type (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 27, 2014	Dec. 28, 2013
Product Information
Net sales	$ 43,661	$ 38,267	$ 121,547	$ 144,086
Interconnect Microfabrication Group
Product Information
Net sales	28,043	25,378	75,591	98,096
Components Group
Product Information
Net sales	4,165	4,354	13,987	20,907
Semiconductor Group
Product Information
Net sales	$ 11,453	$ 8,535	$ 31,969	$ 25,083