Acquisitions - Purchase price as of the Regentys acquisition (Details) - USD ($)	Jan. 31, 2019	Jan. 07, 2019	Nov. 27, 2018	Nov. 02, 2018	Oct. 03, 2018	Jul. 31, 2018	Jan. 31, 2018	Dec. 28, 2017	Jul. 31, 2017	Jan. 18, 2017
Cash and cash equivalents	$ 2,373,821					$ 1,046,365	$ 2,048,067		$ 2,879,165
Other current assets	286,439					96,251
Property and equipment, net	645,607					31,536
Accounts payable and accrued liabilities	(16,863,991)					(11,044,774)
Notes payable	(40,968,321)					(320,000)
Net Tangible Assets	(73,069,456)					(6,606,854)
Non-controlling interest	21,683,698					$ (5,576,272)
Goodwill								$ 0		$ 13,400,000
Total
Cash and cash equivalents	2,410,150
Property and equipment, net	652,590
Notes payable	(3,403,948)
Notes receivable	1,387,763
Total Fair Value of Assets Acquired	9,822,070
Total Purchase Price	35,000,000
Goodwill	25,177,930
Final Allocation
Goodwill	$ 0
Regentys
Cash and cash equivalents		$ 61,857
Other current assets		13,138
Property and equipment, net		444
Accounts payable and accrued liabilities		(1,181,920)
Notes payable		(639,009)
Loans from related parties		(16,506)
Net Tangible Assets		(1,761,996)
Notes receivable		14,345,205
In-process research & development		3,510,680
Deferred tax liability		(889,782)
Redeemable non-controlling interest		(4,073,898)
Non-controlling interest		(9,870,762)
Total Fair Value of Assets Acquired		1,259,447
Cash paid prior to the time of closing		400,000
Note receivable from Generex		14,345,205
Total Purchase Price		14,745,205
Goodwill		$ 13,485,758
Olaregen
Cash and cash equivalents			$ 608,419
Other current assets			37,950
Net Tangible Assets			(641,994)
Notes receivable			11,472,663
In-process research & development			3,980,000
Deferred tax liability			(1,040,173)
Redeemable non-controlling interest			0
Non-controlling interest			(11,999,559)
Cash paid prior to the time of closing			400,000
Note receivable from Generex			11,472,663
Goodwill			$ 8,027,738
"Veneto Second Closing"
Cash and cash equivalents
Property and equipment, net
Notes payable				(3,403,948)
Notes receivable
Total Fair Value of Assets Acquired				3,706,052
Total Purchase Price				20,000,000
Goodwill				$ 16,293,948
"Veneto First Closing"
Cash and cash equivalents					$ 2,410,150
Property and equipment, net					652,590
Notes payable
Notes receivable					1,387,763
Total Fair Value of Assets Acquired					6,116,018
Total Purchase Price					15,000,000
Goodwill					$ 8,883,982