Quarterly Financial Information (unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

The following table presents unaudited supplemental quarterly financial information for the years ended December 31, 2016 and 2015:

	Quarter Ended
	March 31, 2016			June 30, 2016			September 30, 2016			December 31, 2016
Revenues	$	—		$	—		$	—		$	—
Loss from operations		(6,237,536	)		(4,814,452	)		(3,914,014	)		(4,314,199	)
Change in fair value of warrants liability		733,356			152,783			(106,948	)		106,946
Net loss	$	(5,386,237	)	$	(4,568,914	)	$	(3,953,981	)	$	(4,163,320	)
Loss per share—basic and diluted	$	(0.07	)	$	(0.06	)	$	(0.05	)	$	(0.05	)

	Quarter Ended
	March 31, 2015			June 30, 2015			September 30, 2015			December 31, 2015
Revenues	$	—		$	—		$	—		$	—
Loss from operations		(4,291,915	)		(4,897,330	)		(5,017,428	)		(6,191,679	)
Change in fair value of warrants liability		(1,180,278	)		333,956			521,731			389,596
Net loss	$	(5,410,259	)	$	(4,558,503	)	$	(4,449,038	)	$	(5,815,158	)
Loss per share—basic and diluted	$	(0.07	)	$	(0.06	)	$	(0.05	)	$	(0.07	)