Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Aug. 30, 2014		Aug. 31, 2013
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 356,944		$ 319,528
Cost of sales	275,843		274,617
Gross profit	81,101		44,911
Selling, general and administrative expense	39,938		33,841
Operating income	41,163		11,070
Other income (expense):
Interest expense, net	(534)		(796)
Royalty income	572		1,864
Patronage dividends	237
Equity in income of affiliates	310		290
Other	1,038		1,353
Nonoperating income (expense), total	1,623		2,711
Income before income taxes and noncontrolling interest	42,786		13,781
Income tax expense	14,601		4,883
Net income before noncontrolling interest	28,185		8,898
Less: Net income attributable to noncontrolling interest	530		142
Net income attributable to Cal-Maine Foods, Inc.	$ 27,655		$ 8,756
Net income per common share attributable to Cal-Maine Foods, Inc.:
Basic	$ 1.15		$ 0.36
Diluted	$ 1.14		$ 0.36
Dividends per common share	$ 0.381	[1]	$ 0.068	[1]
Weighted average shares outstanding:
Basic	24,065		24,039
Diluted	24,199		24,131

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