Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 02, 2017	Nov. 26, 2016	Dec. 02, 2017	Nov. 26, 2016
Income Statement [Abstract]
Net sales	$ 361,172	$ 253,544	$ 624,017	$ 493,389
Cost of sales	278,776	249,596	524,285	499,010
Gross profit (loss)	82,396	3,948	99,732	(5,621)
Selling, general, and administrative expense	42,160	41,991	83,870	82,247
Legal settlement expense - see Notes 4 and 10	80,750	0	80,750	0
(Gain) loss on disposal of fixed assets	(50)	215	(46)	740
Operating loss	(40,464)	(38,258)	(64,842)	(88,608)
Other income (expense):
Interest income, net	578	781	1,052	1,872
Royalty income	312	324	590	730
Equity in income (loss) of affiliates	276	645	(77)	836
Other, net	(795)	(260)	(1,333)	(138)
Total other income	371	1,490	232	3,300
Loss before income taxes and noncontrolling interest	(40,093)	(36,768)	(64,610)	(85,308)
Income tax benefit	(14,012)	(13,801)	(22,352)	(31,361)
Net loss before noncontrolling interest	(26,081)	(22,967)	(42,258)	(53,947)
Less: Net income (loss) attributable to noncontrolling interest	55	43	(129)	(1)
Net loss attributable to Cal-Maine Foods, Inc.	$ (26,136)	$ (23,010)	$ (42,129)	$ (53,946)
Net loss per common share attributable to Cal-Maine Foods, Inc.:
Basic (in dollars per share)	$ (0.54)	$ (0.48)	$ (0.87)	$ (1.12)
Diluted (in dollars per share)	$ (0.54)	$ (0.48)	$ (0.87)	$ (1.12)
Weighted average shares outstanding:
Basic (in shares)	48,330	48,250	48,330	48,249
Diluted (in shares)	48,330	48,250	48,330	48,249