Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 03, 2018	Feb. 25, 2017	Mar. 03, 2018	Feb. 25, 2017
Income Statement [Abstract]
Net sales	$ 435,820	$ 306,540	$ 1,059,837	$ 799,929
Cost of sales	315,722	267,375	840,007	766,385
Gross profit	120,098	39,165	219,830	33,544
Selling, general, and administrative expense	44,175	43,738	128,045	125,985
Legal settlement expense - see Note 4	0	0	80,750	0
(Gain) loss on disposal of fixed assets	(279)	622	(325)	1,361
Operating income (loss)	76,202	(5,195)	11,360	(93,802)
Other income (expense):
Interest income, net	992	411	2,044	2,283
Royalty income	169	381	759	1,111
Patronage dividends	8,286	7,608	8,286	7,608
Equity in income of affiliates	2,379	1,018	2,302	1,854
Other, net	29	(58)	(1,304)	(197)
Total other income	11,855	9,360	12,087	12,659
Income (loss) before income taxes and noncontrolling interest	88,057	4,165	23,447	(81,143)
Income tax (benefit) expense	(8,301)	34	(30,653)	(31,327)
Net income (loss) before noncontrolling interest	96,358	4,131	54,100	(49,816)
Less: Net income (loss) attributable to noncontrolling interest	64	(8)	(65)	(9)
Net income (loss) attributable to Cal-Maine Foods, Inc.	$ 96,294	$ 4,139	$ 54,165	$ (49,807)
Net income (loss) per common share attributable to Cal-Maine Foods, Inc.:
Basic (in dollars per share)	$ 1.99	$ 0.09	$ 1.12	$ (1.03)
Diluted (in dollars per share)	$ 1.99	$ 0.09	$ 1.12	$ (1.03)
Weighted average shares outstanding:
Basic (in shares)	48,361	48,286	48,340	48,285
Diluted (in shares)	48,476	48,417	48,460	48,285