Net Loss per Common Share (Tables)
3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Schedule of Reconciliation of Numerators and Denominators Used In Computing Net Loss From Continuing Operations Per Share

A reconciliation of the numerators and denominators used in computing net loss from continuing operations per share is as follows (in thousands, except per share amounts):

 

 

 

March 31,

 

 

 

2018

 

 

2017

 

Numerator:

 

 

 

 

 

 

 

 

Net loss

 

$

(16,133

)

 

$

(8,934

)

Denominator:

 

 

 

 

 

 

 

 

Weighted average number of shares

   outstanding—basic and diluted

 

 

3,437,345

 

 

 

3,079,551

 

Net loss per share—basic and diluted

 

$

(4.69

)

 

$

(2.90

)

 

Summary of Potentially Dilutive Securities Excluded from Computation of Diluted Per Share

Potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows:

 

 

 

Three Months Ended

March 31,

 

 

 

2018

 

 

2017

 

Convertible preferred stock

 

 

31,750,297

 

 

 

25,280,436

 

Options to purchase common stock

 

 

4,433,459

 

 

 

2,332,221

 

Early exercised common stock subject to future

   vesting

 

 

1,058,270

 

 

 

1,199,098

 

Restricted stock accounted for as options

 

 

625,084

 

 

 

 

Warrants to purchase convertible preferred stock

 

 

763,501

 

 

 

763,501

 

Warrants to purchase common stock

 

 

96,610

 

 

 

96,610

 

Total

 

 

38,727,221

 

 

 

29,671,866