Deferred Income on Shipments to Distributors (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Deferred Revenue Disclosure [Abstract]
Gross deferred revenue	$ 17,261	$ 17,581
Gross deferred costs	(3,255)	(3,042)
Deferred income on shipments to distributors	$ 14,006	$ 14,539
Discount from list price billed to the customer (percent)	37.00%