Income Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Undistributed Earnings of Foreign Subsidiaries	$ 351,000
Operating Loss Carryforwards	$ 104,000
Operating loss expiration description	Federal net operating loss carryforwards of $101 million expire in fiscal 2027 through fiscal 2038
Net operating loss carryforwards subject to expiration	$ 101,000
Foreign net operating loss carry forwards	82,000
Foreign net operating loss carry forwards no expiration	77,000
Foreign net operating loss, expiration in two to ten years.	4,000
Foreign net operating loss, expiration in twenty years	1,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(47,995)	$ (15,470)
Valuation Allowance Utilized Future Expense [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	46,500
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction		8,400
Valuation Allowance Utilized Current Expense [Member]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction		$ 3,500
Subsidiaries [Member]
Operating Loss Carryforwards	$ 42,000
Net operating losses expiration, description	The Company’s subsidiary, net2phone, has additional federal net operating losses of approximately $42 million, which will expire through fiscal 2027.
Total Subsidiary Tax Net Operating Loss Carry Forwards Annual Limit Amount Under Internal Revenue Code	$ 7,000