Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 02, 2017	Aug. 27, 2016
Statement of Comprehensive Income [Abstract]
Net loss, including noncontrolling interests	$ (16,177)	$ (30,980)
Other comprehensive income (loss), before tax:
Unrealized holding gain on available-for-sale securities, net of reclassification adjustments	51	502
Income tax expense related to items of other comprehensive income	(19)	(191)
Other comprehensive gain, net of tax	32	311
Comprehensive loss	(16,145)	(30,669)
Less: comprehensive loss attributable to the noncontrolling interest	(184)	(44)
Comprehensive loss attributable to Cal-Maine Foods, Inc.	$ (15,961)	$ (30,625)