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STOCK-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]  
A summary of the stock option activity and related information for the Plans for the year ended December 31, 2023 is as follows:

A summary of the stock option activity and related information for the Plans for the year ended December 31, 2023 is as follows:

 

    Shares     Weighted-
Average
Exercise Price
    Weighted-Average Remaining  Contractual Term     Aggregate Intrinsic Value  
Outstanding at December 31, 2021     101,754     $ 487.63       8.83     $  
Grants     298,657     $ 67.46              
Exercised                            
Forfeitures or expirations     (7,768     8,238.07                  
Outstanding at December 31, 2022     392,643     $ 334.08       8.70     $  
Grants     1,019,130     $ 4.64           $  
Exercised                            
Forfeitures or expirations     (36,234 )   $ 345.92                  
                                 
Outstanding at December 31, 2023     1,375,539     $ 89.62       8.75     $  
Exercisable at December 31, 2023     259,991     $ 381.80       7.51     $  
The assumptions used in the valuation of stock options granted during the year ended December 31, 2023 and 2022 were as follows:

The assumptions used in the valuation of stock options granted during the year ended December 31, 2023 and 2022 were as follows:

 

    Year Ended
December 31, 2023
    Year Ended
December 31, 2022
 
Risk-free interest rate     3.42% to 4.35 %     1.67% to 3.05 %
Expected term of option     5.0 to 10 years       5.5 to 10 years  
Expected stock price volatility     122.19% - 142.72 %     120.32% - 133.22 %
Expected dividend yield     0.0       0.0