Accrued Expenses (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Accrued Expenses [Abstract]
Accrued research and development costs	$ 377,294	$ 1,874,126
Accrued professional fees	440,799	258,568
Accrued compensation	1,300,793	1,510,430
Accrued other	169,385	56,835
Deferred rent	1,978	34,389
Total	$ 2,290,249	$ 3,734,348