Quarterly report pursuant to Section 13 or 15(d)

Stock Plans

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Stock Plans
 3 Months Ended
Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Stock Plans

 

2. Stock Plans

 

The following table summarizes option activity:

 

                               
    Options
(in thousands)		     Weighted-Average
Exercise Price
per share		     Weighted-Average
Remaining
Option Term
(in years)		     Aggregate
Intrinsic
Value
(in thousands)		  
Outstanding at December 31, 2023     93     $ 73.46       8.35     $ -  
Outstanding at March 31, 2024     93     $ 73.14       7.79     $ -  
Exercisable at March 31, 2024     93     $ 73.14       7.79     $ -  

 

The following table summarizes the stock-based compensation expense recorded for awards under our stock option plans:

 

               
    Three Months Ended
March 31,		  
(in thousands)   2024     2023  
Research and development   $ -     $ 28  
Selling, general and administrative     -       262  
Total stock-based compensation   $ -     $ 290  

 

We use the Black-Scholes-Merton option-pricing model to estimate the fair value of our stock options. There were no options granted or shares awarded during the three-month periods ended March 31, 2024 and 2023.

 

As of March 31, 2024, there was no unrecognized compensation expense related to non-vested stock options.