Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for financing purchases of goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Line of Credit (Detail) (USD $)				3 Months Ended
Line of Credit (Detail) (USD $)	May 04, 2013	Apr. 28, 2012	Apr. 30, 2010	May 04, 2013 Second Amended Credit Facility [Member] LIBOR Rate [Member] Minimum [Member]	May 04, 2013 Second Amended Credit Facility [Member] LIBOR Rate [Member] Maximum [Member]	May 04, 2013 Base Rate [Member] Minimum [Member] Second Amended Credit Facility [Member]	May 04, 2013 Base Rate [Member] Maximum [Member] Second Amended Credit Facility [Member]	May 04, 2013 Minimum [Member] Second Amended Credit Facility [Member]	May 04, 2013 Maximum [Member] Second Amended Credit Facility [Member]	May 31, 2012 Second Amended Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)			$ 100,000,000							$ 75,000,000
Debt Instrument, Basis Spread on Variable Rate				2.25%	2.75%	0.75%	1.25%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage								0.375%	0.50%
Line of Credit Facility, Capacity Available for Trade Purchases (in Dollars)	53,000,000
Letters of Credit Outstanding, Amount (in Dollars)	$ 378,000	$ 626,000