Consolidated Statements of Stockholders Equity Statement - USD ($) $ in Thousands	Total	Common & Class B Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Noncontrolling Interest
Total, Beginning of Period at Jul. 31, 2021	$ 159,232	$ 1,096	$ 48,271	$ 180,443	$ (66,154)	$ (4,117)	$ (307)
Common & Class B Stock, Beginning of Period (in shares) at Jul. 31, 2021		10,958,367
Treasury Stock, Beginning of Period (in shares) at Jul. 31, 2021					(3,539,193)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income Attributable to Oil-Dri	585	$ 0	0	585	$ 0	0
Net (Loss) Income Attributable to Noncontrolling Interest	10						10
Net Income, Including Portion Attributable to Noncontrolling Interest	595
Other Comprehensive (Loss) Income	(7)	0	0	0	0	(7)	0
Dividends Declared	(1,864)	0	0	(1,864)	0	0	0
Purchases of Treasury Stock	(2,291)	0	0	0	$ (2,291)	0	0
Purchases of Treasury Stock (in shares)					(65,767)
Net issuance of stock under long-term incentive plans	0	$ 7	470	0	$ 477	0	0
Net issuance of stock under long-term incentive plans (in shares)		(74,657)			(13,550)
Amortization of Restricted Stock	636	$ 0	636	0	$ 0	0	0
Total, End of Period at Oct. 31, 2021	156,301	$ 1,103	49,377	179,164	$ (68,922)	(4,124)	(297)
Common Stock & Class B Stock, End of Period (in shares) at Oct. 31, 2021		11,033,024
Treasury Stock, End of Period (in shares) at Oct. 31, 2021					(3,618,510)
Total, Beginning of Period at Jul. 31, 2022	150,349	$ 1,108	52,467	178,754	$ (79,428)	(2,183)	(369)
Common & Class B Stock, Beginning of Period (in shares) at Jul. 31, 2022		11,083,824
Treasury Stock, Beginning of Period (in shares) at Jul. 31, 2022					(3,961,579)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income Attributable to Oil-Dri	5,241	$ 0	0	5,241	$ 0	0
Net (Loss) Income Attributable to Noncontrolling Interest	(11)						(11)
Net Income, Including Portion Attributable to Noncontrolling Interest	5,230
Other Comprehensive (Loss) Income	(393)	0	0	0	0	(393)	0
Dividends Declared	(1,860)	0	0	(1,860)	0	0	0
Purchases of Treasury Stock	(92)	0	0	0	$ (92)	0	0
Purchases of Treasury Stock (in shares)					(3,360)
Net issuance of stock under long-term incentive plans	0	$ 4	124	0	$ 128	0	0
Net issuance of stock under long-term incentive plans (in shares)		(38,850)			(4,000)
Amortization of Restricted Stock	794	$ 0	794	0	$ 0	0	0
Total, End of Period at Oct. 31, 2022	$ 154,028	$ 1,112	$ 53,385	$ 182,135	$ (79,648)	$ (2,576)	$ (380)
Common Stock & Class B Stock, End of Period (in shares) at Oct. 31, 2022		11,122,674
Treasury Stock, End of Period (in shares) at Oct. 31, 2022					(3,968,939)