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Income Taxes (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jul. 31, 2023 | Jul. 31, 2022 | Jul. 31, 2021
Undistributed earnings of foreign subsidiaries | $ 302,000 |  |
Operating loss carryforwards | $ 37,000 |  |
Operating loss expiration description | U.S. federal net operating loss carryforwards of $34 million expire in fiscal 2028 through fiscal 2038, and $3 million do not expire. |  |
Net operating loss carryforwards subject to expiration | $ 34,000 |  |
Net operating loss carryforwards no expiration | 3,000 |  |
Foreign net operating loss carry forwards | 77,000 |  |
Foreign net operating loss carry forwards no expiration | 65,000 |  |
Foreign net operating loss, expiration in two to ten years. | 11,000 |  |
Foreign net operating loss, expiration in twenty years | 1,000 |  |
Deductions | (3,507) |  | $ (47,995)
Valuation allowances and reserves charged to cost and expense | 2,537 | $ 48 | 835
Valuation Allowance Utilized Future Expense [Member] |  |  |
Valuation allowance, deferred tax asset, increase (decrease), amount | 1,000 |  | $ 46,500
Decrease in deferred income tax assets | 2,800 |  |
Deductions | 700 |  |
Valuation allowances and reserves charged to cost and expense | 2,500 |  |
Subsidiaries [Member] |  |  |
Operating loss carryforwards | $ 7,000 |  |
Net operating losses expiration, description | The Company’s subsidiary, net2phone, has additional U.S. federal net operating loss carryforwards of approximately $7 million, which will expire through fiscal 2027. |  |
Total Subsidiary Tax Net Operating Loss Carry Forwards Annual Limit Amount Under Internal Revenue Code | $ 7,000 |  |

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