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Stock Incentive Plans - Schedule of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Number of Options    
Exercised (in shares)   0
2008 Plan, 2016 Plan, and 2018 Inducement Incentive Award Plan    
Number of Options    
Beginning balance (in shares) 776,865  
Granted (in shares) 1,000,092  
Converted from options for Series A preferred stock (in shares) 470,403  
Exercised (in shares) (458,544)  
Forfeited (in shares) (82,781)  
Ending balance (in shares) 1,706,035 776,865
Vested (in shares) 656,258  
Vested and expected to vest (in shares) 1,564,044  
Weighted-Average Exercise Price    
Beginning balance (in dollars per share) $ 2.97  
Granted (in dollars per share) 19.63  
Converted from options for Series A preferred stock (in dollars per share) 2.40  
Exercised (in dollars per share) 2.57  
Forfeited (in dollars per share) 17.28  
Ending balance (in dollars per share) 11.99 $ 2.97
Vested (in dollars per share) 3.22  
Vested and expected to vest (in dollars per share) $ 11.31  
Weighted-Average Remaining Contractual Term    
Outstanding, term 7 years 7 months 2 days 6 years 6 months
Vested, term 5 years 4 months 9 days  
Vested and expected to vest, term 7 years 5 months 8 days  
Aggregate Intrinsic Value    
Outstanding $ 12,025 $ 13,760
Vested 9,674  
Vested and expected to vest $ 11,961  
Old Cartesian Plan    
Number of Options    
Beginning balance (in shares) 14,112.299  
Converted to options for common stock (in shares) (14,112.299)  
Ending balance (in shares) 0 14,112.299
Weighted-Average Exercise Price    
Beginning balance (in dollars per share) $ 79.94  
Converted to options for common stock (in dollars per share) 79.94  
Ending balance (in dollars per share) $ 0 $ 79.94
Weighted-Average Remaining Contractual Term    
Outstanding, term 5 years 10 months 28 days
Aggregate Intrinsic Value    
Outstanding $ 8,601