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Stock-Based Compensation - Summary of Stock Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
2014 Plan      
Number of Shares      
Beginning balance (in shares) 322,405    
Granted (in shares) 0 0  
Exercised (in shares) 0    
Forfeited (in shares) 0    
Ending balance (in shares) 322,405   322,405
Exercisable (in shares) 322,291    
Unvested (in shares) 114    
Weighted- Average Exercise Price      
Beginning balance (in dollars per share) $ 7.30    
Granted (in dollars per share) 0    
Exercised (in dollars per share) 0    
Forfeited (in dollars per share) 0    
Ending balance (in dollars per share) 7.30   $ 7.30
Exercisable (in dollars per share) 7.27    
Unvested (in dollars per share) $ 0    
Additional Disclosures      
Options outstanding, weighted-average remaining contractual term 5 years 1 month 6 days   5 years 3 months 18 days
Weighted-average remaining contractual term, Exercisable 5 years 1 month 6 days    
Weighted-average remaining contractual term, Unvested 5 years 1 month 6 days    
Options outstanding, aggregate intrinsic value $ 1,731   $ 1,539
Aggregate intrinsic value, Exercisable 1,731    
Aggregate intrinsic value, Unvested $ 0    
2021 Plan      
Number of Shares      
Beginning balance (in shares) 13,865    
Granted (in shares) 0 0  
Exercised (in shares) 0    
Forfeited (in shares) 0    
Ending balance (in shares) 13,865   13,865
Exercisable (in shares) 11,554    
Unvested (in shares) 2,311    
Weighted- Average Exercise Price      
Beginning balance (in dollars per share) $ 261.25    
Granted (in dollars per share) 0    
Exercised (in dollars per share) 0    
Forfeited (in dollars per share) 0    
Ending balance (in dollars per share) 261.25   $ 261.25
Exercisable (in dollars per share) 261.25    
Unvested (in dollars per share) $ 261.25    
Additional Disclosures      
Options outstanding, weighted-average remaining contractual term 7 years 3 months 18 days   7 years 6 months
Weighted-average remaining contractual term, Exercisable 7 years 3 months 18 days    
Weighted-average remaining contractual term, Unvested 7 years 3 months 18 days    
Options outstanding, aggregate intrinsic value $ 0   $ 0
Aggregate intrinsic value, Exercisable 0    
Aggregate intrinsic value, Unvested $ 0