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Selected quarterly financial data (unaudited)
 12 Months Ended
Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]  
Selected quarterly financial data (unaudited)

16. Selected quarterly financial data (unaudited)

Summarized quarterly financial data for the years ended December 31, 2019 and 2018, are set forth in the following tables:

 

 

 

March 31

 

 

June 30

 

 

September 30

 

 

December 31

 

 

 

(In thousands, except per share data)

 

2019

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net revenues

 

$

17,448

 

 

$

15,002

 

 

$

14,595

 

 

$

15,993

 

Net loss

 

$

(14,883

)

 

$

(12,387

)

 

$

(10,370

)

 

$

(14,263

)

Net loss per share — basic and diluted

 

$

(0.08

)

 

$

(0.07

)

 

$

(0.05

)

 

$

(0.07

)

Weighted average common shares used to compute

   net loss per share — basic and diluted

 

 

187,434

 

 

 

188,054

 

 

 

199,906

 

 

 

206,689

 

2018

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net revenues

 

$

3,465

 

 

$

3,893

 

 

$

4,469

 

 

$

16,031

 

Net loss

 

$

(30,385

)

 

$

(22,675

)

 

$

(24,168

)

 

$

(9,747

)

Net loss per share — basic and diluted

 

$

(0.25

)

 

$

(0.16

)

 

$

(0.16

)

 

$

(0.06

)

Weighted average common shares used to compute

   net loss per share — basic and diluted

 

 

120,911

 

 

 

140,054

 

 

 

153,597

 

 

 

161,397