Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 02, 2017	Nov. 26, 2016	Dec. 02, 2017	Nov. 26, 2016
Statement of Comprehensive Income [Abstract]
Net loss, including noncontrolling interests	$ (26,081)	$ (22,967)	$ (42,258)	$ (53,947)
Other comprehensive loss, before tax:
Unrealized holding loss on available-for-sale securities, net of reclassification adjustments	(508)	(536)	(457)	(34)
Income tax benefit related to items of other comprehensive loss	204	204	185	13
Other comprehensive loss, net of tax	(304)	(332)	(272)	(21)
Comprehensive loss	(26,385)	(23,299)	(42,530)	(53,968)
Less: comprehensive income (loss) attributable to the noncontrolling interest	55	43	(129)	(1)
Comprehensive loss attributable to Cal-Maine Foods, Inc.	$ (26,440)	$ (23,342)	$ (42,401)	$ (53,967)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount before tax, after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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