Summary of Significant Accounting Policies (Details Textual)			1 Months Ended	12 Months Ended
	Aug. 10, 2017 USD ($)	Dec. 13, 2016 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2017 USD ($)	Jul. 31, 2017 USD ($)	Jul. 31, 2016 USD ($)	Jul. 31, 2017 GBP (£)	Jul. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Summary of Significant Accounting Policies [Line Items]
Cash and Cash Equivalents, at Carrying Value					$ 6,872,555	$ 1,481,393		$ 434,217
Cash, FDIC Insured Amount					$ 250,000		£ 85,000
Finite-Lived Intangible Asset, Useful Life					20 years
Share-based Compensation, Total					$ 1,696,926	11,496,025
Upfront License Fee									$ 500,000
Required Contributions Of Development Regulatory And Commercialization Costs						2,500,000
Capitalized Costs, Asset Retirement Costs					2,500
Revenue Recognition, Milestone Method, Revenue Recognized				$ 25,000,000	20,000,000
Proceeds from Royalties Received			$ 13,710,000		17,460,000
Legal Fees		$ 40,000			40,000
Royalty Revenue					18,406,142	5,097,595
Subsequent Event [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Royalties Received	$ 3,750,000
Adapt Agreement [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds From Milestone Payments						4,500,000
Revenue Recognition, Milestone Method, Revenue Recognized						418,000
License Costs						$ 180,000
SWK Purchase Agreement [Member]
Summary of Significant Accounting Policies [Line Items]
Proceeds from Royalties Received					13,750,000
Royalty Revenue					$ 17,460,000
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life					3 years
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life					7 years