Noncontrolling Interest (Schedule Of Statement Of Stockholders' Equity Activities, Including Noncontrolling Interest) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended							3 Months Ended
	Sep. 01, 2012		Aug. 27, 2011	Sep. 01, 2012 Treasury Amount [Member]	Jun. 02, 2012 Treasury Amount [Member]	Sep. 01, 2012 Paid In Capital [Member]	Jun. 02, 2012 Paid In Capital [Member]	Sep. 01, 2012 Accumulated Other Comprehensive Loss [Member]	Sep. 01, 2012 Retained Earnings [Member]		Sep. 01, 2012 Noncontrolling Interests [Member]	Sep. 01, 2012 Common Stock [Member]	Jun. 02, 2012 Common Stock [Member]	Sep. 01, 2012 Class A Common Stock [Member]	Jun. 02, 2012 Class A Common Stock [Member]
Balance at June 2, 2012	$ 479,328			$ (20,843)	$ (20,843)	$ 33,651	$ 33,651	$ (222)	$ 466,164		$ 203	$ 351	$ 351	$ 24	$ 24
Dividends	(3,159)	[1]							(3,159)	[1]
Reclass equity portion of Texas Egg Products, LLC in connection with purchase of shell egg operations of Pilgrim's Pride									53		(53)
Unrealized gain on securities, net of tax	262							262
Net income (loss)	9,520		3,054						9,415		105
Balance at September1, 2012	485,951			(20,843)	(20,843)	33,651	33,651	40	472,473		255	351	351	24	24
One Third Of Net Income Attributable To Parent	$ 3,138		$ 1,039
Percentage Of Net Income Attributable To Parent	33.33%
Percentage of net income attributable to Cal-Maine Foods, Inc.	33.33%

[1] Dividends are calculated as 1/3 of net income (includes adjustment for actual dividends paid based on accrual from previous period).