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Warrants (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Aug. 06, 2021
Jul. 15, 2019
Class of Warrant or Right [Line Items]          
Warrants issued (in shares)         2,000,000
Fair value of warrants issued $ 5,874 $ 5,874      
Class of warrant or right, warrants exercised (in shares)   0 0    
Exercise price of warrants (in usd per share)         $ 0.001
Pre-Funded Warrants          
Class of Warrant or Right [Line Items]          
Warrants issued (in shares) 4,000,000        
Common Stock Warrants          
Class of Warrant or Right [Line Items]          
Warrants issued (in shares) 8,850,000        
Maximum | Common Stock Warrants          
Class of Warrant or Right [Line Items]          
Exercise price of warrants (in usd per share) $ 1.09        
Minimum | Common Stock Warrants          
Class of Warrant or Right [Line Items]          
Exercise price of warrants (in usd per share) $ 0.96        
Senior Secured Notes Due 2025          
Class of Warrant or Right [Line Items]          
Warrants issued (in shares)       714,000  
Fair value of warrants issued   $ 6,800      
Interest rate   12.50%      
Senior Secured Notes Due 2025 | Senior Notes          
Class of Warrant or Right [Line Items]          
Interest rate   12.50%     12.50%
2020 Additional Notes          
Class of Warrant or Right [Line Items]          
Fair value of warrants issued   $ 735      
Senior Secured Notes Due 2025 - First Additional Offering | Maximum          
Class of Warrant or Right [Line Items]          
Warrants issued (in shares)   2,143,000