Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Sep. 01, 2012		Aug. 27, 2011
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 272,928		$ 243,842
Cost of sales	228,213		210,056
Gross profit	44,715		33,786
Selling, general and administrative	29,118		27,829
Operating income	15,597		5,957
Other income (expense):
Interest expense, net	(1,298)		(1,396)
Other	402		172
Nonoperating income (expense), total	(896)		(1,224)
Income before income taxes and noncontrolling interest	14,701		4,733
Income tax expense	5,181		1,679
Net income before noncontrolling interest	9,520		3,054
Less: Net income (loss) attributable to noncontrolling interest	105		(63)
Net income attributable to Cal-Maine Foods, Inc.	$ 9,415		$ 3,117
Net income per common share attributable to Cal-Maine Foods Inc.:
Basic	$ 0.39		$ 0.13
Diluted	$ 0.39		$ 0.13
Dividends per common share	$ 0.131	[1]	$ 0.044	[1]
Weighted average shares outstanding:
Basic	23,921		23,867
Diluted	23,958		23,945

[1] Dividends per common share = 1/3 of Net income (loss) attributable to Cal-Maine Foods, Inc. ÷ Total common stock outstanding (shares)