Condensed Consolidated Statements of Income and Retained Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2019	Jan. 31, 2018
Net Sales	$ 69,880	$ 68,894	$ 136,023	$ 135,540
Cost of Sales	(54,476)	(49,237)	(104,609)	(96,908)
Gross Profit	15,404	19,657	31,414	38,632
Selling, General and Administrative Expenses	(12,577)	(14,474)	(27,584)	(29,234)
Income from Operations	2,827	5,183	3,830	9,398
Other Income (Expense)
Interest expense	(142)	(199)	(293)	(400)
Interest income	47	65	96	119
Other, net	56	22	39	(207)
Total Other Expense, Net	(39)	(112)	(158)	(488)
Income Before Income Taxes	2,788	5,071	3,672	8,910
Income Tax Expense	(506)	(6,167)	(456)	(6,956)
Net Income	2,282	(1,096)	3,216	1,954
Net Income (Loss) Attributable to Noncontrolling Interest	(5)	0	23	0
Net Income (Loss) Attributable to Oil-Dri	2,287	(1,096)	3,193	1,954
Retained Earnings:
Balance at beginning of period			158,935	154,735
Cash dividends declared			(3,340)	(3,118)
Balance at End of Period	$ 158,788	$ 153,571	$ 158,788	$ 153,571
Net Income (Loss) Per Share
Diluted Common (in dollars per share)	$ 0.30	$ (0.15)	$ 0.42	$ 0.26
Average Shares Outstanding
Diluted Common (in shares)	7,229	7,139	7,242	7,215
Common Stock
Net Income (Loss) Per Share
Basic Common (in dollars per share)	$ 0.33	$ (0.17)	$ 0.46	$ 0.29
Average Shares Outstanding
Basic Common (in shares)	5,121	5,035	5,099	5,030
Dividends Declared Per Share (in dollars per share)	$ 0.2400	$ 0.2300	$ 0.4800	$ 0.4600
Common Class B
Net Income (Loss) Per Share
Basic Common (in dollars per share)	$ 0.25	$ (0.12)	$ 0.34	$ 0.22
Average Shares Outstanding
Basic Common (in shares)	2,068	2,104	2,069	2,097
Dividends Declared Per Share (in dollars per share)	$ 0.1800	$ 0.1725	$ 0.3600	$ 0.3450