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