Quarterly report pursuant to Section 13 or 15(d)

A summary of the stock option activity and related information for the Plans for the three months ended March 31, 2024, is as follows: (Details)

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A summary of the stock option activity and related information for the Plans for the three months ended March 31, 2024, is as follows: (Details) - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]    
Outstanding at beginning 1,375,539  
Outstanding at beginning $ 89.62  
Weighted average remaining contractual term 9 years 8 months 19 days 8 years 9 months
Grants 8,477,582  
Grants $ 0.40  
Forfeitures or expirations (103,339)  
Forfeitures or expirations $ 65.60  
Outstanding at end 9,749,782 1,375,539
Outstanding at end $ 12.30 $ 89.62
Exercisable at end 573,301  
Exercisable at end $ 169.31  
Exercisable at end 8 years 21 days