OPERATING SEGMENTS Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Revenue by Principal Product
Net Sales	$ 413,021	$ 348,589
Business to Business Products
Revenue by Principal Product
Net Sales	142,395	113,379
Retail and Wholesale Products
Revenue by Principal Product
Net Sales	270,626	235,210
Cat Litter | Business to Business Products
Revenue by Principal Product
Net Sales	0	0
Cat Litter | Retail and Wholesale Products
Revenue by Principal Product
Net Sales	226,335	196,278
Industrial and Sports | Business to Business Products
Revenue by Principal Product
Net Sales	0	0
Industrial and Sports | Retail and Wholesale Products
Revenue by Principal Product
Net Sales	44,291	38,932
Agricultural and Horticultural | Business to Business Products
Revenue by Principal Product
Net Sales	40,275	30,419
Agricultural and Horticultural | Retail and Wholesale Products
Revenue by Principal Product
Net Sales	0	0
Bleaching Clay and Fluids Purification | Business to Business Products
Revenue by Principal Product
Net Sales	77,643	62,051
Bleaching Clay and Fluids Purification | Retail and Wholesale Products
Revenue by Principal Product
Net Sales	0	0
Animal Health and Nutrition | Business to Business Products
Revenue by Principal Product
Net Sales	24,477	20,909
Animal Health and Nutrition | Retail and Wholesale Products
Revenue by Principal Product
Net Sales	$ 0	$ 0