Commitments and Contingencies (Activity in the Liability for Estimated Repurchase Contingencies) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 30, 2013	Mar. 31, 2012	Mar. 31, 2011
Disclosure of Repurchase Agreements [Abstract]
Balance at beginning of period	$ 819	$ 597	$ 760
Charged to costs and expenses	533	332	(137)
Payments and deductions	0	(110)	(26)
Balance at end of period	$ 1,352	$ 819	$ 597

Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph m

-Subparagraph 1

-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Name:	us-gaap_AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant