The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

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 210.5-03.3)

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

Name:	us-gaap_InsuranceRecoveries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Flooding (Details) (USD $) In Thousands, unless otherwise specified	5 Months Ended	12 Months Ended	5 Months Ended	12 Months Ended	0 Months Ended	3 Months Ended		0 Months Ended	1 Months Ended	3 Months Ended	1 Months Ended	0 Months Ended
	Sep. 02, 2011 item	Apr. 29, 2012	Sep. 02, 2011 Flooding item	Apr. 29, 2012 Flooding	Apr. 30, 2011 Flooding Davenport, Iowa	Jul. 24, 2011 Flooding Davenport, Iowa	Apr. 24, 2011 Flooding Davenport, Iowa	May 12, 2011 Flooding Caruthersville, Missouri	Jun. 02, 2011 Flooding Lula, Mississippi - property 1	Sep. 01, 2011 Flooding Lula, Mississippi - property 2	Jun. 16, 2011 Flooding Natchez, Mississippi	May 26, 2011 Flooding Vicksburg, Mississippi
Flooding
Number of properties closed due to flooding	5		5
Number Days Closed					15 days	6 days	9 days	12 days	31 days	91 days	41 days	16 days
Revenue recognized from insurance recoveries		$ 9,637		$ 9,637