Document and Entity Information	6 Months Ended
	Jan. 31, 2020 shares
Entity Information
Entity Registrant Name	Oil-Dri Corp of America
Entity Central Index Key	0000074046
Current Fiscal Year End Date	--07-31
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Document Type	10-Q
Document Period End Date	Jan. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Shell Company	false
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding
Common Stock
Entity Information
Entity Common Stock, Shares Outstanding	5,415,926
Common Class B
Entity Information
Entity Common Stock, Shares Outstanding	2,196,170