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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2026
Stock-Based Compensation [Abstract]  
Schedule of Activity for Stock Options

The following table summarizes activity for stock options under all plans for the three months ended March 31, 2026:

 

           Weighted-     
   Number of       Average     
   Shares   Weighted-   Remaining   Aggregate 
   Underlying   Average   Contractual   Intrinsic 
   Outstanding   Exercise   Term   Value 
   Options   Price   (in Years)   (in thousands) 
Outstanding, December 31, 2025   2,033,114   $8.31    8.23   $10,347 
Options granted   -   $-    -   $
-
 
Options forfeited   -   $-    
-
   $
-
 
Options exercised   
-
   $
-
    
-
   $
-
 
Outstanding, March 31, 2026   2,033,114   $8.31    7.99   $11,862 
                     
Options vested and exercisable as of March 31, 2026   976,013   $10.51    6.93   $5,344 
Schedule of Stock-Based Compensation Expense

The Company has recorded stock-based compensation expense, which includes expense related to restricted stock units, allocated by functional cost as follows for the three months ended March 31, 2025 and 2026 (in thousands):

 

   Three Months Ended   Three Months Ended 
   March 31,   March 31, 
   2025   2026 
         
Research and development  $263   $344 
General and administrative   300    410 
Total stock-based compensation  $563   $754 
Schedule of Fair Value of Awards Granted

The following averaged assumptions were used to calculate the fair value of awards granted to employees, directors and non-employees for the three months ended March 31, 2025 and March 31, 2026:

 

   Three Months Ended
March 31,
2025
   Three Months Ended
March 31,
2026
 
         
Expected volatility   108.49%   107.44% - 116.54%
Risk-free interest rate   4.38%   3.75% - 4.38%
Dividend yield   -%   -%
Expected term    6.25 years    5.50 years - 6.25 years