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Selected Quarterly Financial Data (Tables)
 12 Months Ended
Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]  
Selected Quarterly Results from Operations

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

)