Income Taxes (Details Narrative) - USD ($)	9 Months Ended	12 Months Ended
	Apr. 30, 2019	Jul. 31, 2018
Pre-tax gain or (loss) arising from domestic operations	$ (5,415,726)	$ 35,948,698
Pre-tax (losses) arising from foreign operations	(339,586)	$ (150,394)
NOL carryforwards	215,000,000
Deferred tax assets	67,000,000
Deferred tax assets in excess of deferred tax liabilities	1,929,955
Generex Pharmaceuticals
NOL carryforwards	36,400,000
Antigen Express
NOL carryforwards	36,700,000
Regentys
NOL carryforwards	6,100,000
Deferred tax liability	889,782
Olaregen
NOL carryforwards	1,600,000
Deferred tax liability	$ 1,040,173