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Income Taxes - Schedule of Provision for Income Tax (Details) - USD ($)	3 Months Ended		9 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Income Tax Disclosure [Abstract]
Current, Local
Current, Foreign
Deferred, Local
Deferred, Foreign
Income tax expense