SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Earnings Per Share(Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net Income attributable to Oil-Dri	$ 29,551	$ 5,674
Distributed and undistributed earnings on restricted shares	(1,518)
Income available to stockholders	28,033
Common Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net Income attributable to Oil-Dri	22,712
Distributed and undistributed earnings on restricted shares	(1,232)
Income available to stockholders	$ 21,480
Earnings Per Share, Basic (in shares)	4,825	4,987
Earnings Per Share, Basic	$ 4.45	$ 0.83
Effect of dilution - Net Income	$ 6,553
Net income assuming dilution	$ 28,033
Effect of dilution - Shares	1,959
Shares assuming dilution	6,784	5,099
Earnings per Share, Diluted	$ 4.13	$ 0.81
Class B
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net Income attributable to Oil-Dri	$ 6,839
Distributed and undistributed earnings on restricted shares	(286)
Income available to stockholders	$ 6,553
Earnings Per Share, Basic (in shares)	1,959	1,934
Earnings Per Share, Basic	$ 3.35	$ 0.63
Effect of dilution - Net Income	$ 0
Net income assuming dilution	$ 6,553
Effect of dilution - Shares	0
Shares assuming dilution	1,959	1,962
Earnings per Share, Diluted	$ 3.35	$ 0.62