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Selected Quarterly Financial Data
 12 Months Ended
Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]  
Selected Quarterly Financial Data

14.

Selected Quarterly Financial Data (unaudited)

Selected quarterly results from operations for the years ended December 31, 2019 and 2018 are as follows (in thousands except per share amounts):

 

 

 

2019 Quarter Ended

 

 

 

March 31

 

 

June 30

 

 

September 30

 

 

December 31

 

Revenue

 

$

8,327

 

 

$

7,173

 

 

$

10,581

 

 

$

10,047

 

Net loss

 

$

(11,949

)

 

$

(15,150

)

 

$

(12,862

)

 

$

(15,528

)

Basic and diluted net loss per share

 

$

(0.23

)

 

$

(0.26

)

 

$

(0.22

)

 

$

(0.26

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2018 Quarter Ended

 

 

 

March 31

 

 

June 30

 

 

September 30

 

 

December 31

 

Revenue

 

$

9,546

 

 

$

15,022

 

 

$

8,975

 

 

$

9,332

 

Net loss

 

$

(9,417

)

 

$

(6,874

)

 

$

(10,890

)

 

$

(10,785

)

Basic and diluted net loss per share

 

$

(0.19

)

 

$

(0.14

)

 

$

(0.22

)

 

$

(0.21

)

 

The four quarters of net earnings per share may not add to the total year because of differences in the weighted-average numbers of shares outstanding during the quarters and the year.