v3.24.3
Stock-based Compensation (Tables)
9 Months Ended
Sep. 30, 2024
Stock-based Compensation [Abstract]  
Stock-Based Compensation Expense
Stock-based compensation expense was included in general and administrative and research and development costs as follows in the accompanying condensed statements of comprehensive (loss) income for the three and nine-month periods indicated below (in thousands):
 
 
 
Three Months
Ended
September 30,
   
Nine Months
Ended
September 30,
 
 
 
2024
   
2023
   
2024
   
2023
 
General and administrative
  $ 549    
$
335
   
$
1,850
   
$
1,969
 
Research and development
   
227
     
238
     
717
     
830
 
Total stock-based compensation
 
$
776
   
$
573
   
$
2,567
   
$
2,799
 
Weighted Average Assumptions Used in Black-Scholes Option-pricing Model
The weighted average assumptions used in the Black-Scholes option pricing model are as follows during the three and nine months ended September 30, 2024 and 2023:

 
 
Three Months
Ended
September 30,
   
Nine Months
Ended
  September 30,
 
 
 
2024
   
2023
   
2024
   
2023
 
Expected stock price volatility
   
—
%
   
96.4
%
   
97.7
%
   
95.3
%
Expected life of options (years)
   
—
     
6.1
     
5.9
     
6.1
 
Expected dividend yield
   
—
%
   
0
%
   
0
%
   
0
%
Risk free interest rate
   
—
%
   
4.2
%
   
4.2
%
   
3.7
%