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Stock-Based Compensation - Assumptions (Details)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Fair value assumptions    
Expected term 6 years 1 month 6 days  
Expected volatility 81.40%  
Minimum    
Fair value assumptions    
Expected term   5 years 6 months
Expected volatility   79.70%
Risk free interest rate 3.50% 1.80%
Maximum    
Fair value assumptions    
Expected term   6 years 1 month 6 days
Expected volatility   81.40%
Risk free interest rate 4.09% 4.20%