Accrued Dividends Payable And Dividends per Common Share (Schedule of Dividends) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 01, 2018	Dec. 02, 2017	Dec. 01, 2018	Dec. 02, 2017	Jun. 02, 2018
Class of Stock [Line Items]
Net income (loss) attributable to Cal-Maine Foods, Inc.	$ 21,807	$ (26,136)	$ 34,212	$ (42,129)
One third of net income attributable to parent	$ 7,246	$ 0	$ 11,381	$ 0
Common stock, shares outstanding (in shares)	48,628	48,573	48,628	48,573
Dividends per common share (in dollars per share)	$ 0.149	$ 0	$ 0.234	$ 0
Common Stock
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)	43,828	43,773	43,828	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