Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation (Tables)

v3.10.0.1
Stock-based Compensation (Tables)
 6 Months Ended
Jun. 30, 2018
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, 2018 and 2017 were as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended 

 

Six Months Ended

 

 

 

June 30, 

 

June 30, 

 

 

 

2018

    

2017

 

2018

    

2017

 

Selling, general and administrative

 

$

779

 

$

764

 

$

1,719

 

$

1,359

 

Research and development

 

 

333

 

 

336

 

 

933

 

 

696

 

Total stock-based compensation

 

$

1,112

 

$

1,100

 

$

2,652

 

$

2,055

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended 

 

 

Six Months Ended 

 

 

 

 

June 30, 

 

 

June 30, 

 

 

 

    

2018

    

2017

    

    

2018

    

2017

 

    

Risk-free interest rate

 
2.9

%  
2.1

%  

 
2.7

%  
2.2

%

 

Expected term (in years)

 
6.6

 
6.6

 

 
6.7

 
6.8

 

 

Dividend yield

 
0.0

%  
0.0

%  

 
0.0

%  
0.0

%

 

Expected volatility

 
66.2

%  
63.7

%  

 
65.0

%  
63.0

%

 

 

Summary of weighted-average assumptions used to calculate fair value of purchase rights granted under Employee Stock Purchase Plan

 

 

 

 

 

 

 

 

 

Six Months Ended 

 

 

 

 

June 30, 

 

 

 

    

2018

    

2017

 

    

Risk-free interest rate

 
0.6

%  
0.5

%

 

Expected term (in years)

 
2.0

 
1.5

 

 

Dividend yield

 
0.0

%  
0.0

%

 

Expected volatility

 
63.8

%  
63.1

%