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Net Loss Per Share (Tables)
9 Months Ended
Sep. 30, 2019
Earnings Per Share [Abstract]  
Summary of Potentially Dilutive Shares Excluded from Calculation of Net Loss Per Share

The following table represents all potentially dilutive shares, which were all anti-dilutive and therefore excluded from the calculation of diluted net loss per share:

 

 

 

As of  September 30,

 

(in thousands)

 

2019

 

 

2018

 

Warrants

 

 

22,000

 

 

 

 

Outstanding options to purchase common stock

 

 

4,015

 

 

 

3,358

 

Unvested RSUs

 

 

 

 

 

139