Product and Geographic Information - Net Sales by Geographic Area (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 42,856	$ 59,647	$ 59,647	$ 77,886	$ 105,819	$ 105,819
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	34,516		49,439		59,234	88,274
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,482		7,110		8,656	10,676
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 5,858		$ 3,098		$ 9,996	$ 6,869