Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Aug. 30, 2014	Aug. 31, 2013
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net income including noncontrolling interest	$ 28,185	$ 8,898
Other comprehensive loss, before tax:
Unrealized holding loss on available-for-sale securities, net of reclassification adjustments	(16)	(76)
Other comprehensive loss, before tax	(16)	(76)
Income tax benefit related to items of other comprehensive income (loss)	(6)	(30)
Other comprehensive loss, net of tax	(10)	(46)
Comprehensive income	28,175	8,852
Less: comprehensive income attributable to the noncontrolling interest	530	142
Comprehensive income attributable to Cal-Maine Foods, Inc.	$ 27,645	$ 8,710