Accrued Dividends Payable And Dividends per Common Share (Schedule of Dividends) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 02, 2019	Mar. 03, 2018	Mar. 02, 2019	Mar. 03, 2018	Jun. 02, 2018
Class of Stock [Line Items]
Net income attributable to Cal-Maine Foods, Inc.	$ 39,777	$ 96,294	$ 73,989	$ 54,165
Net Income (Loss) Available to Common Stockholders, Basic	39,777	0	73,989	0
One third of net income attributable to parent	$ 13,245	$ 0	$ 24,626	$ 0
Common stock, shares outstanding (in shares)	48,694	48,573	48,694	48,573
Dividends per common share (in dollars per share)	$ 0.272	$ 0	$ 0.506	$ 0
Common Stock
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)	43,894	43,773	43,894	43,773
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)	4,800	4,800	4,800	4,800	4,800