Business and Basis of Presentation (Details Textual)	Apr. 28, 2012 State	Apr. 28, 2012
Business and Basis of Presentation (Textual) [Abstract]
Number of stores	467	467
Number of states in which entity operates	44	44

The number of states the entity operates in as of the balance sheet date.

No definition available.

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant