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Goodwill and Intangible Assets - Changes in the carrying amount of goodwill and other intangible assets (Details) - USD ($)	12 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016	Jan. 18, 2017
Balance, Goodwill				$ 14,300,000
Acquisition of HDS		$ 27,221
Impairment of goodwill		(13,380,377)
Total
Balance, Goodwill	3,187,757	2,911,377
Acquisition of HDS	276,380		$ 16,291,754
Impairment of goodwill			(13,380,377)
Licenses from pharmacy acquisition (Note 9)		276,380
Goodwill
Balance, Goodwill
Acquisition of HDS			13,380,377
Impairment of goodwill			(13,380,377)
Licenses from pharmacy acquisition (Note 9)
Other Intangibles, net
Balance, Goodwill	3,187,757	2,911,377
Acquisition of HDS	$ 276,380		2,911,377
Impairment of goodwill
Licenses from pharmacy acquisition (Note 9)		$ 276,380