Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021	Jul. 31, 2021
Segment Reporting Information
Assets	$ 247,214		$ 247,214		$ 227,566
Net Sales	87,210	$ 74,500	169,670	$ 150,597
Corporate Expenses	(6,598)	(6,047)	(12,973)	(12,020)
Income from Operations	1,918	4,244	2,363	9,421
Total Other Income, Net	452	913	717	491
Income before Income Taxes	2,370	5,157	3,080	9,912
Income Tax Expense	(409)	(869)	(524)	(1,675)
Net Income	1,961	4,288	2,556	8,237
Net Loss Attributable to Noncontrolling Interest	(41)	(11)	(31)	(46)
Net Income Attributable to Oil-Dri	2,002	4,299	2,587	8,283
Business to Business Products
Segment Reporting Information
Assets	73,041		73,041		69,023
Net Sales	32,624	26,283	61,553	53,805
Segment Income	7,590	7,113	14,336	14,713
Retail and Wholesale Products
Segment Reporting Information
Assets	111,332		111,332		103,268
Net Sales	54,586	48,217	108,117	96,792
Segment Income	926	$ 3,178	1,000	$ 6,728
Unallocated Assets
Segment Reporting Information
Assets	$ 62,841		$ 62,841		$ 55,275