Commitments and Contingencies (Details)	1 Months Ended			3 Months Ended		9 Months Ended
	Jul. 31, 2017 USD ($)	Aug. 31, 2016 USD ($)	Oct. 31, 2010 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) ft² Batch	Sep. 30, 2016 USD ($)
Leases [Abstract]
Rent expense				$ 152,026	$ 82,163	$ 450,700	$ 196,322
Future Minimum Rental Payments Required under Operating Leases [Abstract]
2017 (remaining)				149,021		149,021
2018				602,461		602,461
2019				604,541		604,541
2020				603,371		603,371
2021				530,384		530,384
2022 and after				0		0
Total minimum payments required				2,489,778		2,489,778
Evonik [Member]
Commitments and Contingencies [Abstract]
Milestone payments paid		$ 1,000,000	$ 250,000
Evonik [Member] | Maximum [Member]
Commitments and Contingencies [Abstract]
Milestone payments to be paid				14,750,000		$ 14,750,000
Oakwood Amended and Restated Master Formulation Development Agreement [Member]
Commitments and Contingencies [Abstract]
Milestone payments paid	$ 1,500,000
Royalty Term						12 years
Period to provide written notice to terminate agreement						60 days
Oakwood Amended and Restated Master Formulation Development Agreement [Member] | Maximum [Member]
Commitments and Contingencies [Abstract]
Milestone payments to be paid				4,500,000		$ 4,500,000
Oakwood Manufacturing and Supply Agreement [Member]
Commitments and Contingencies [Abstract]
Period to provide written notice to terminate agreement						2 years
Number of batches required to be ordered under agreement | Batch						5
Percentage of aggregate vials of EG-1962 from all sources to be purchased under agreement						0.5
Term of agreement						3 years
Term of automatic renewal						2 years
Period to provide written notice of non-renewal						12 months
Oakwood Manufacturing and Supply Agreement [Member] | Maximum [Member]
Commitments and Contingencies [Abstract]
Milestone payments to be paid				$ 2,250,000		$ 2,250,000
Employment Agreements [Member] | Minimum [Member]
Commitments and Contingencies [Abstract]
Term for payment of severance benefits						12 months
Employment Agreements [Member] | Maximum [Member]
Commitments and Contingencies [Abstract]
Term for payment of severance benefits						18 months
Office Space in Berkeley Heights, New Jersey Under Lease Effective December 13, 2013 [Member]
Leases [Abstract]
Term of lease						63 months
Area of leased property | ft²						8,000
Office Space in Berkeley Heights, New Jersey Under Lease Entered into February 18, 2016 [Member]
Leases [Abstract]
Term of lease						63 months
Area of leased property | ft²						20,410