Acquisition (Proforma Schedule Of Operations) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Jun. 01, 2013	Jun. 02, 2012
Acquisition [Abstract]
Net sales	$ 1,344,279	$ 1,241,475
Net income attributable to Cal-Maine Foods, Inc.	$ 50,053	$ 93,449
Basic net income per share	$ 2.09	$ 3.91
Diluted net income per share	$ 2.08	$ 3.90

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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