OPERATING SEGMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Segment Reporting Information
Assets	$ 205,227	$ 194,682
Net Sales	277,025	266,000
Corporate Expenses	(29,659)	(26,218)
Income from Operations	10,412	15,877
Total Other Income (Expense), Net	4,136	(1,011)
Income Before Income Taxes	14,548	14,866
Income Taxes	(1,933)	(6,644)
Net Income	12,615	8,222
Net Income (Loss) Attributable to Noncontrolling Interest	4	(18)
Net Income Attributable to Oil-Dri	12,611	8,240
Business to Business Products
Segment Reporting Information
Assets	65,282	65,143
Segment Net Sales	105,877	105,043
Net Sales	105,877	105,043
Segment Income	31,388	35,120
Retail and Wholesale Products
Segment Reporting Information
Assets	94,809	89,623
Segment Net Sales	171,148	160,957
Net Sales	171,148	160,957
Segment Income	8,683	6,975
Unallocated Assets
Segment Reporting Information
Assets	$ 45,136	$ 39,916