Net Loss Per Share
 12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Net Loss Per Share

18. Net loss per share

Basic and diluted net loss per share attributable to common stockholders was calculated as follows (in thousands, except share and per share data):

 

 

YEAR ENDED
DECEMBER 31,

 

 

 

2021

 

 

2020

 

Numerator:

 

 

 

 

 

 

Net loss

 

$

(37,157

)

 

$

(91,665

)

Cumulative dividends on redeemable convertible
   preferred stock

 

 

—

 

 

 

(10,831

)

Net loss attributable to common stockholders

 

$

(37,157

)

 

$

(102,496

)

Denominator:

 

 

 

 

 

 

Weighted average common shares outstanding, basic
   and diluted

 

 

21,794,546

 

 

 

6,332,841

 

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

 

$

(1.70

)

 

$

(16.18

)

 

As of December 31, 2021 and 2020, we had 4,763,489 and 4,543,318 outstanding stock options, respectively, representing potential common shares, presented based on amounts outstanding at each period end, were excluded from the calculation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have been anti-dilutive.