OPERATING SEGMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Segment Reporting Information
Assets	$ 235,882	$ 205,227
Net Sales	283,227	277,025
Other Operating Income	13,000	0
Corporate Expenses	(35,250)	(29,659)
Income from Operations	24,827	10,412
Total Other (Expense) Income, Net	(1,807)	4,136
Income Before Income Taxes	23,020	14,548
Income Taxes	(4,280)	(1,933)
Net Income	18,740	12,615
Net (Loss) Income Attributable to Noncontrolling Interest	(160)	4
Net Income Attributable to Oil-Dri	18,900	12,611
Business to Business Products
Segment Reporting Information
Assets	72,987	65,282
Segment Net Sales	104,260	105,877
Net Sales	104,260	105,877
Segment Income	31,218	31,388
Retail and Wholesale Products
Segment Reporting Information
Assets	95,838	94,809
Segment Net Sales	178,967	171,148
Net Sales	178,967	171,148
Segment Income	15,859	8,683
Unallocated Assets
Segment Reporting Information
Assets	$ 67,057	$ 45,136