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Bank Indebtedness - Summary of Company's Senior Credit Facility (Detail) (Senior Secured Notes [Member], USD $)	12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Senior Secured Notes [Member]
Credit Facilities [Line Items]
Maximum borrowing outstanding during the year	$ 100,548,000	$ 88,143,000
Average outstanding balance during the year	$ 78,371,000	$ 71,045,000
Weighted average interest rate for the year	3.60%	3.60%
Effective interest rate at year-end	3.60%	3.60%

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- Definition

Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding by type or by instrument at that time.

+ References

No definition available.

+ Details

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- Definition

Average amount borrowed under the credit facility during the period.

+ References

No definition available.

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Balance Type:	credit
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- Definition

The effective interest rate at the end of the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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- Definition

Maximum amount borrowed under the credit facility at any time during the period.

+ References

No definition available.

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