Segment Information (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Apr. 01, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property, plant and equipment, net	$ 76,141	$ 69,984
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property, plant and equipment, net	46,825	50,741
MALAYSIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property, plant and equipment, net	20,210	13,658
All other countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property, plant and equipment, net	$ 9,106	$ 5,585