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Stockholders' Equity - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Number of Options    
Outstanding, beginning of period (in shares) 4,183,232  
Granted (in shares) 2,017,596  
Expired (in shares) (15,341)  
Cancelled/Forfeited (in shares) (146,312)  
Outstanding, end of period (in shares) 6,039,175 4,183,232
Exercisable (in shares) 2,569,497  
Unvested at March 31, 2024 (in shares) 3,469,678  
Weighted Average Exercise Price Per Share    
Outstanding, Weighted Average Exercise Price Per Share, beginning of period (in dollars per share) $ 8.17  
Granted, Weighted Average Exercise Price Per Share (in dollars per share) 4.80  
Expired, Weighted Average Exercise Price Per Share (in dollars per share) 7.16  
Cancelled-Forfeited, Weighted Average Exercise Price Per Share (in dollars per share) 6.08  
Outstanding, Weighted Average Exercise Price Per Share, end of period (in dollars per share) 7.10 $ 8.17
Weighted Average Exercise Price, Exercisable (in dollars per share) 9.47  
Weighted Average Exercise Price, Unvested (in dollars per share) 5.34  
Weighted Average Grant Date Fair Value Per Share    
Outstanding, Weighted average grant date fair value at beginning of period (in dollars per share) 7.60  
Weighted average estimated fair value of the stock options granted (in dollars per share) 3.92  
Expired, Weighted average grant date fair value (in dollars per share) 6.91  
Expired, Weighted average grant date fair value (in dollars per share) 5.75  
Ending, Weighted average grant date fair value at beginning of period (in dollars per share) 6.42 $ 7.60
Exercisable, Weighted average grant date fair value (in dollars per share) 8.73  
Unvested Weighted average grant date fair value (in dollars per share) $ 4.70  
Weighted Average Remaining Contractual Term (in years) and Aggregate Intrinsic Value    
Weighted Average Remaining Contractual Term (in years), Outstanding 8 years 7 months 6 days 8 years 3 months 18 days
Weighted Average Remaining Contractual Term (in years), Granted 9 years 8 months 12 days  
Weighted Average Remaining Contractual Term (in years), Exercisable 7 years 4 months 24 days  
Weighted Average Remaining Contractual Term (in years), Unvested 9 years 4 months 24 days  
Aggregate Intrinsic Value, Outstanding $ 433 $ 147
Aggregate Intrinsic Value, Exercisable 74  
Aggregate Intrinsic Value, Unvested $ 358