FUEL DERIVATIVE CONTRACTS (Details) (USD $) In Millions, unless otherwise specified	Oct. 29, 2011
Derivative [Line Items]
Gallons of Diesel Fuel in the Fuel derivatives contract for estimated fuel needs November 2011 through July 2012 (in gallons)	4.2
Fuel needs percentage from November 2011 through July 2012 hedged by fuel derivative contracts (in hundredths)	50.00%
Gallons of Diesel Fuel in the Fuel derivatives contracts for estimated fuel needs August 2012 through October 2012 (in gallons)	0.6
Fuel needs percentage from August 2012 through October 2012 hedged by fuel derivative contracts (in hundredths)	20.00%
Derivative fair value	$ 0.3

Aggregate notional amount of price risk derivatives not designated as a hedging instrument with notional amounts expressed in nonmonetary units. For example the number of barrels specified in a fuel oil forward purchase contract. Notional amount relates to needs estimate within a defined period.

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- Definition

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- Definition

Percentage of an entity's estimated future (period 3) fuel needs hedged in a fuel derivative contract.

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Percentage of an entity's estimated future (period 4) fuel needs hedged in a fuel derivative contract.

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- Definition

Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (a),(c)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624163-113959

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44C

-Subparagraph a

-Clause 1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 205G

-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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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