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Selected Quarterly Data (unaudited) (Tables)
 12 Months Ended
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]  
Selected Quarterly Data (unaudited)

The following tables contain quarterly financial information for 2018 and 2017 (in thousands).  The Company believes that the following information reflects all normal recurring adjustments necessary for a fair presentation of the information for the periods presented.  The operating results for any quarter are not necessarily indicative of results for any future period.

 

 

 

2018 Quarter Ended

 

 

 

March 31

 

 

June 30

 

 

September 30

 

 

December 31

 

Revenue

 

$

354

 

 

$

254

 

 

$

1,801

 

 

$

111

 

Operating expenses

 

 

11,990

 

 

 

15,606

 

 

 

13,335

 

 

$

12,819

 

Loss from operations

 

 

(11,636

)

 

 

(15,352

)

 

 

(11,534

)

 

$

(12,708

)

Net loss

 

 

(11,165

)

 

 

(14,591

)

 

 

(10,748

)

 

$

(11,931

)

Net loss per share attributable to common stockholders - basic and diluted

 

$

(0.55

)

 

$

(0.59

)

 

$

(0.43

)

 

$

(0.47

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2017 Quarter Ended

 

 

 

March 31

 

 

June 30

 

 

September 30

 

 

December 31

 

Revenue

 

$

111

 

 

$

2,111

 

 

$

111

 

 

$

111

 

Operating expenses

 

 

7,485

 

 

 

11,568

 

 

 

12,186

 

 

 

12,029

 

Loss from operations

 

 

(7,374

)

 

 

(9,457

)

 

 

(12,075

)

 

 

(11,918

)

Net loss

 

 

(7,368

)

 

 

(9,388

)

 

 

(11,924

)

 

 

(11,697

)

Net loss per share attributable to common stockholders - basic and diluted

 

$

—

 

 

$

(4.70

)

 

$

(1.66

)

 

$

(0.74

)

Net loss per unit attributable to common unit holders - basic and diluted

 

$

(4.49

)

 

$

—

 

 

$

—

 

 

$

—