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Segmented Information - Schedule of Information Relating to Segments (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 26, 2011
Sales Information [Line Items]
Sales to external customers	$ 292,759	$ 302,317	$ 270,948
Inter-segment sales	25,126	27,076	21,875
Unadjusted gross profit	131,166	139,694	121,757
Retail Segment [Member]
Sales Information [Line Items]
Sales to external customers	274,725	279,345	257,150
Unadjusted gross profit	120,554	125,749	113,131
Other Segments [Member]
Sales Information [Line Items]
Sales to external customers	18,034	22,972	13,798
Inter-segment sales	25,126	27,076	21,875
Unadjusted gross profit	$ 10,612	$ 13,945	$ 8,626

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Unadjusted Gross Profit

+ References

No definition available.

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- Definition

Amount of revenue from transactions with other operating segments of the same entity.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 27

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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