Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 01, 2018	Sep. 02, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss), including noncontrolling interests	$ 12,743	$ (16,177)
Other comprehensive income, before tax:
Unrealized holding gain on available-for-sale securities, net of reclassification adjustments	467	51
Income tax expense related to items of other comprehensive income	(114)	(19)
Other comprehensive income, net of tax	353	32
Comprehensive income (loss)	13,096	(16,145)
Less: comprehensive income (loss) attributable to the noncontrolling interest	338	(184)
Comprehensive income (loss) attributable to Cal-Maine Foods, Inc.	$ 12,758	$ (15,961)