Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.21.2
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2021
Stock-Based Compensation  
Schedule of stock-based compensation related to all of the entity's share-based payments

Total stock-based compensation related to all of our share-based payments that we recognized for the three and six months ended June 30, 2021 and 2020 were as follows (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended 

​

Six Months Ended

​

​

June 30, 

​

June 30, 

​

​

2021

    

2020

​

2021

    

2020

Selling, general and administrative

​

$

1,772

​

$

1,299

​

$

3,825

​

$

2,629

Research and development

​

​

534

​

​

458

​

​

1,120

​

​

1,152

Total stock-based compensation expense

​

$

2,306

​

$

1,757

​

$

4,945

​

$

3,781

Summary of weighted-average assumptions relating to options granted pursuant to equity incentive plans

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended 

​

​

Six Months Ended 

​

​

​

June 30, 

​

​

June 30, 

​

​

    

2021

    

2020

    

    

2021

    

2020

 

Risk-free interest rate

​

1.3

%  

1.1

%  

​

1.0

%  

1.3

%

Expected term (in years)

​

6.6

​

6.3

​

​

6.5

​

6.4

​

Dividend yield

​

0.0

%  

0.0

%  

​

0.0

%  

0.0

%

Expected volatility

​

70.5

%  

65.8

%  

​

70.6

%  

65.4

%