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Net Loss per Share of Common Stock (Tables)
 9 Months Ended
Sep. 30, 2018
Earnings Per Share [Abstract]  
Summary of Computation of Basic and Diluted Net Loss Per Share

The following table summarizes the computation of basic and diluted net loss per share of the Company (in thousands, except per share data):

 

 

Three Months Ended

 

 

Nine Months Ended

 

 

September 30,

 

 

September 30,

 

 

2018

 

 

2017

 

 

2018

 

 

2017

 

Net loss

$

(6,550

)

 

$

(49,788

)

 

$

(25,379

)

 

$

(116,107

)

Weighted-average shares used to compute basic and diluted net loss per share (1)

 

6,040

 

 

 

5,945

 

 

 

5,998

 

 

 

5,889

 

Basic and diluted net loss per common share (1)

$

(1.08

)

 

$

(8.37

)

 

$

(4.23

)

 

$

(19.72

)

 

 

 

(1)

Net loss per share and the number of shares used in the per share calculations for all periods presented reflect the one-for-six reverse stock split effective on October 16, 2018.