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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Options Activity

The following table summarizes the activity for all stock options outstanding for the three months ended March 31:

 

 

   2024   2023 
   Shares   Weighted
Average
Exercise Price
   Shares   Weighted
Average
Exercise Price
 
Options outstanding at beginning of year   2,815,392   $7.95    1,976,586   $6.34 
Granted   285,795    15.29    119,985    11.36 
Exercised   (36,550)   6.55    (24,122)   5.30 
Forfeited   (15,250)   9.05    (3,991)   6.55 
Balance at March 31   3,049,387   $8.65    2,068,458   $6.65 
                     
Options exercisable at March 31:   1,569,614   $6.55    1,114,767   $5.91 
                     
Weighted Average Grant Date Fair Value for options granted during the period:       $10.53        $7.81 
Schedule of Stock Options Outstanding and Exercisable

The following table summarizes additional information about stock options outstanding and exercisable at March 31, 2024:

 

Options Outstanding  Options Exercisable
Options
Outstanding
  Weighted
Average
Remaining
Contractual
Life
   Weighted
Average
Exercise
Price
   Aggregate
Intrinsic
Value
   Options
Exercisable
  Weighted
Average
Exercise Price
   Aggregate
Intrinsic
Value
 
3,049,387   7.95   $8.65   $39,506,833   1,569,614  $6.55   $23,646,843 
Schedule of Assumptions for Fair Value of Equity-based Awards

The Black-Scholes option-pricing model was used to estimate the fair value of equity-based awards with the following weighted-average assumptions for the three months ended March 31:

 

   2024   2023 
Risk-free interest rate   3.94% - 4.33%   3.64% - 4.14%
Expected volatility   76.1%   79.8%
Expected life (years)   5.25 to 6.08    5.25 to 6.08 
Expected dividend yield   0%   0%
Schedule of Unrecognized Compensation Cost

Total unrecognized compensation cost related to stock options and restricted stock is estimated to be recognized at March 31, 2024:

 

      
2024  $3,661,229 
2025   3,483,405 
2026   2,496,276 
2027   1,501,013 
2028   48,146 
Total estimated compensation cost to be recognized  $11,190,069 
Schedule of Stock-based Compensation Expense

The Company recognized total stock-based compensation expense as follows for the three months ended March 31:

 

   2024   2023 
   Three Months Ended 
   March 31, 
   2024   2023 
Stock-based compensation expense in operating expenses:          
Research and development  $832,180   $654,471 
General and administrative   499,166    618,811 
Total  $1,331,346   $1,273,282