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Fair Value Measurements - Financial Instruments Measured on a Recurring Basis (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Phantom Stock Units    
Financial instruments measured at fair value on a recurring basis    
Grant date fair value (in USD per share) $ 1.70  
Risk-free interest rate 0.27%  
Expected life (years) 2 years 8 months 15 days  
Estimated volatility factor (percent) 65.80%  
Expected dividends $ 0  
Liability-classified stock compensation | Fair Value, Inputs, Level 3    
Financial instruments measured at fair value on a recurring basis    
Fair value of liability 275,000  
Liability-classified stock compensation | Recurring | Fair Value, Inputs, Level 3    
Financial instruments measured at fair value on a recurring basis    
Fair value of liability $ 275,000 $ 241,000