Prepaid Expenses and Other Current Assets (Details) - USD ($)	1 Months Ended	5 Months Ended
	Aug. 31, 2017	Dec. 31, 2017	Jul. 31, 2017	Jul. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses and other current assets		$ 733,328	$ 164,887	$ 62,404
Long-term Purchase Commitment [Line Items]
Payments for prepaid research and development supplies		100,000
Research and Development Arrangement
Long-term Purchase Commitment [Line Items]
Payments to acquire in-process research and development	$ 400,000	418,000
Supplies Expense		$ 25,000