Business to Business Products Business to Business Segment [Member] Business to Business Segment [Member] Other Contingencies Legal Matters and Contingencies [Text Block] Vested, number of shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Fair Value Measurement [Domain] Fair Value Hierarchy and NAV [Domain] Net Income Attributable to Oil-Dri Net Income Attributable to Oil-Dri Net Income (Loss) Attributable to Parent Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Trademarks and patents, net of accumulated amortization of $527 and $524 at October 31, 2022 and July 31, 2022, respectively Trademarks and patents, net The total amount, net of amortization, as of the balance sheet date for 1) the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit and 2) costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. 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