Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Aug. 27, 2016	Aug. 29, 2015
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 239,845	$ 609,895
Cost of sales	249,414	346,824
Gross profit (loss)	(9,569)	263,071
Selling, general, and administrative expense	40,256	42,963
Operating income (loss)	(49,825)	220,108
Other income (expense):
Interest income, net	1,091	27
Royalty income	406	606
Equity in income of affiliates	191	730
Other, net	(403)	(814)
Total other income	1,285	549
Income (loss) before income taxes and noncontrolling interest	(48,540)	220,657
Income tax expense (benefit)	(17,560)	76,567
Net income (loss) before noncontrolling interest	(30,980)	144,090
Less: Net income (loss) attributable to noncontrolling interest	(44)	1,067
Net income (loss) attributable to Cal-Maine Foods, Inc.	$ (30,936)	$ 143,023
Net income (loss) per common share attributable to Cal-Maine Foods, Inc.:
Basic	$ (0.64)	$ 2.97
Diluted	$ (0.64)	2.95
Dividends per common share		$ 0.983
Weighted average shares outstanding:
Basic	48,249	48,163
Diluted	48,249	48,498