Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2016

Basic and Diluted Net Loss Per Share of Common Stock

The following table presents the calculation of basic and diluted net loss per share of common stock for the three and nine months ended September 30, 2016 and 2015:

	Three Months Ended						Nine Months Ended
	September 30,			September 30,			September 30,			September 30,
(in thousands, except for share and per share amounts)	2016			2015			2016			2015
Numerator:
Net loss	$	(430	)	$	(9,461	)	$	(17,406	)	$	(25,067	)
Denominator:
Weighted average shares outstanding, basic and diluted		43,515,404			42,435,405			43,275,074			42,059,839
Net loss per share, basic and diluted	$	(0.01	)	$	(0.22	)	$	(0.40	)	$	(0.60	)
Antidilutive securities excluded from calculations of diluted net loss per share		3,845,456			5,181,975			5,298,256			5,534,752