Net Loss Per Common Share - (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Schedule of computation of basic and diluted net income (loss) per common share

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Basic and diluted net loss per common share calculation:
Net loss	$	(14,437	)	$	(14,745	)	$	(41,381	)	$	(41,027	)
Weighted average common shares outstanding - basic and dilutive	41,552			36,202			41,486			36,181
Net loss per share of common stock - basic and diluted	$	(0.35	)	$	(0.41	)	$	(1.00	)	$	(1.13	)

Schedule of potentially dilutive securities that have been excluded from the computations of diluted weighted average common shares outstanding

The following potentially dilutive securities have been excluded from the computations of diluted weighted average common shares outstanding for the periods presented, as the effect of including such shares would be anti-dilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2019	2018	2019	2018
Stock options outstanding	5,468	4,855	5,468	4,855
Restricted stock units	695	184	695	184
Total	6,163	5,039	6,163	5,039