Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Tables)

v3.23.2
STOCK-BASED COMPENSATION (Tables)
6 Months Ended
Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of stock-based compensation

Stock-based compensation for the periods presented was as follows (in thousands):

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Three Months Ended June 30, 

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Six Months Ended June 30, 

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2023

    

2022

​

2023

    

2022

Selling, general and administrative

​

$

1,796

​

$

1,933

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$

3,531

​

$

4,672

Research and development

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​

376

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458

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1,399

​

​

926

Total stock-based compensation expense

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$

2,172

​

$

2,391

​

$

4,930

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$

5,598

Employee Stock Option [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of weighted-average assumptions relating to options granted pursuant to equity incentive plans

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Three Months Ended June 30, 

Six Months Ended June 30, 

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2023

    

2022

    

    

2023

    

2022

 

Risk-free interest rate

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3.7

%  

2.9

%  

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3.7

%  

1.9

%

Expected term (in years)

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6.7

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6.5

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7.0

​

6.5

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Dividend yield

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0.0

%  

0.0

%  

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0.0

%  

0.0

%

Expected volatility

​

86.0

%  

70.3

%  

​

83.1

%  

70.0

%