Net Loss per Common Share (Tables)

3 Months Ended

Mar. 31, 2016

Net Loss per Common Share [Abstract]

Computation of Basic and Diluted Net Income (Loss) Per Share

The following table sets forth the computation of basic and diluted net loss per share for the periods indicated:

	Three Months Ended
	March 31,
	2016		2015
Basic and diluted net loss per common share calculation:
Net loss	$	(3,112,000)	$	(14,493,000)
Accretion of Series B redeemable convertible preferred stock		(1,725,000)		(338,000)
Net loss attributable to common stockholders	$	(4,837,000)	$	(14,831,000)
Weighted average common shares outstanding - basic		5,883,503		4,245,816
Net loss per share of common stock  - basic	$	(0.82)	$	(3.49)
Weighted average common shares outstanding - diluted		5,883,503		4,245,816
Net loss per share of common stock - diluted	$	(0.82)	$	(3.49)

Antidilutive Securities Excluded from Computation of Diluted Weighted Shares Outstanding

The following outstanding securities at March 31, 2016 and 2015 have been excluded from the computation of diluted weighted shares outstanding for the three months ended March 31, 2016 and 2015, as they would have been anti-dilutive:

	March 31,		March 31,
	2016		2015
Options		872,977	440,695
Warrants		1,379,649	1,266,293
Series B redeemable convertible preferred stock		7,527,853	8,671,040
Total		9,780,479	10,378,028