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Stock-Based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Number of Shares      
Options outstanding, beginning (in shares) 12,668 37,615  
Adjustment and Correction (in shares)   (20,000)  
Granted (in shares) 240,000 0  
Exercised (in shares) 0 0  
Unvested options forfeited (in shares) 0 0  
Vested options expired (in shares) (6,005) (4,947)  
Options outstanding, ending (in shares) 246,663 12,668 37,615
Weighted-Average Exercise Price      
Options outstanding, weighted-average exercise price, beginning (in dollars per share) $ 78.88 $ 80.21  
Granted (in dollars per share) 5.59 0  
Exercised (in dollars per share) 0 0  
Unvested options forfeited (in dollars per share) 0 0  
Vested options expired (in dollars per share) 77.38 95.80  
Options outstanding, weighted-average exercise price, ending (in dollars per share) $ 7.61 $ 78.88 $ 80.21
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]      
Vested and expected to vest (in shares) 246,663    
Exercisable (in shares) 6,663    
Vested and expected to vest (in dollars per share) $ 7.61    
Exercisable (in dollars per share) $ 80.24    
Weighted Average Remaining Contractual Term, options outstanding (in years) 9 years 4 months 17 days 1 year 1 month 28 days 1 year 4 months 9 days
Weighted Average Remaining Contractual Term, granted (in years) 9 years 8 months 1 day    
Weighted Average Remaining Contractual Term, vested and expected to vest (in years) 9 years 4 months 17 days    
Weighted Average Remaining Contractual Term, exercisable (in years) 5 months 26 days    
Aggregate Intrinsic Value, vested and expected to vest $ 288    
Aggregate Intrinsic Value, exercisable 0    
Aggregate Intrinsic Value      
Options outstanding, beginning 0 $ 0  
Granted 288 0  
Options outstanding, ending $ 288 $ 0 $ 0