Acquisition of Business (Allocation of Purchase Price) (Details) (Former Genuardi's Stores [Member], USD $) In Thousands, unless otherwise specified	Jun. 11, 2012
Former Genuardi's Stores [Member]
Business Acquisition [Line Items]
Inventories	$ 1,116
Equipment	5,294
Intangible assets	120
Total assets acquired	$ 6,530

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Amount of assets acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

+ References

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

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-Name Accounting Standards Codification

-Topic 805

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-Section 50

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-Topic 805

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The amount of property, plant, and equipment recognized as of the acquisition date.

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