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Stock Incentive Plans - Schedule of Stock Option Activity (Details) - 2016 Plan, 2018 Inducement Incentive Award Plan and Old Cartesian Plan - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Number of Options    
Beginning balance (in shares) 1,706,035  
Granted (in shares) 944,909  
Exercised (in shares) (55,690)  
Forfeited (in shares) (120,231)  
Ending balance (in shares) 2,475,023 1,706,035
Vested (in shares) 781,188  
Vested and expected to vest (in shares) 2,181,547  
Weighted-average exercise price    
Beginning balance (in dollars per share) $ 11.99  
Granted (in dollars per share) 17.46  
Exercised (in dollars per share) 3.29  
Forfeited (in dollars per share) 18.49  
Ending balance (in dollars per share) 13.96 $ 11.99
Vested (in dollars per share) 6.23  
Vested and expected to vest (in dollars per share) $ 13.38  
Weighted-average remaining contractual term    
Outstanding, term 8 years 2 months 1 day 7 years 7 months 2 days
Vested, term 5 years 8 months 1 day  
Vested and expected to vest, term 8 years  
Aggregate intrinsic value    
Outstanding $ 7,376 $ 12,025
Vested 6,490  
Vested and expected to vest $ 7,376