Net Loss Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule of Net Income Attributable to Common Stockholders

The computation of net income attributable to common stockholders is as follows:

	Year ended December 31,
	2015			2014			2013
Net loss	$	(3,710,812	)	$	(37,339,017	)	$	(21,687,155	)
Preferred stock dividends on Series B and Series C		—			(11,286,193	)		(8,595,504	)
Additional loss attributable to common stockholders upon conversion of Series C Preferred Stock into common stock		—			(82,654,683	)		—
Net loss attributable to common stockholders	$	(3,710,812	)	$	(131,279,893	)	$	(30,282,659	)

Schedule of Antidilutive Securities

The potentially dilutive securities excluded from the determination of diluted loss per share, as their effect is antidilutive, are as follows:

	Year ended December 31,
	2015		2014		2013
Convertible Preferred Series C (on an as-if converted basis)		—		—		7,713,455
Service Period Stock Options		1,991,209		1,220,739		1,092,604
Warrants		61,117		61,117		61,117
Total		2,052,326		1,281,856		8,867,176