Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Nov. 29, 2014		Nov. 30, 2013		Nov. 29, 2014		Nov. 30, 2013
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 378,617		$ 354,275		$ 735,561		$ 673,803
Cost of sales	285,908		279,608		561,751		554,225
Gross profit	92,709		74,667		173,810		119,578
Selling, general and administrative expense	37,112		33,809		77,050		67,650
Operating income	55,597		40,858		96,760		51,928
Other income (expense):
Interest expense, net	(477)		(690)		(1,011)		(1,486)
Royalty income	1,452		548		2,024		2,412
Patronage dividends	8		252		245		252
Equity in income of affiliates	335		665		645		955
Other	(406)		(717)		632		636
Nonoperating income (expense), total	912		58		2,535		2,769
Income before income taxes and noncontrolling interest	56,509		40,916		99,295		54,697
Income tax expense	19,648		14,669		34,249		19,552
Net income before noncontrolling interest	36,861		26,247		65,046		35,145
Less: Net income attributable to noncontrolling interest	258		141		788		283
Net income attributable to Cal-Maine Foods, Inc.	$ 36,603		$ 26,106		$ 64,258		$ 34,862
Net income per common share attributable to Cal-Maine Foods, Inc.:
Basic	$ 0.76		$ 0.54		$ 1.34		$ 0.73
Diluted	$ 0.76		$ 0.54		$ 1.33		$ 0.72
Dividends per common share	$ 0.252	[1]	$ 0.180	[1]	$ 0.443	[1]	$ 0.214	[1]
Weighted average shares outstanding:
Basic	48,136		48,091		48,133		48,084
Diluted	48,404		48,275		48,400		48,268

[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). Per share amounts for the thirteen and twenty-six weeks ended November 29, 2014, are estimated based on outstanding shares as of the end of the period; actual per share amounts will be determined as of the dividend record date.