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Defined Contribution Plans (Details Narrative) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
May 27, 2021 | Jul. 31, 2023 | Jul. 31, 2022 | Jul. 31, 2021
Employment period contributions, description |  | first five years |  |
Defined contribution plan, cost |  | $ 1.1 | $ 1.0 | $ 0.8
Common Class B [Member] |  |  |  |
Stock issued during period, shares, new issues | 35,839 |  |  |
Stock issued during period, value, new issues | $ 1.0 |  |  |

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