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Fair Value Measurement - Summary of Fair Value Measurements Convertible Notes Valuation Assumptions (Details) - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Convertible notes | Level 3    
Fair Value Measurement    
Risk-free interest rate (in percent) 4.37% 4.24%
Volatility (in percent) 90.00% 105.00%
Contractual term (years) 1 year 7 months 6 days 1 year 10 months 24 days
Stock price $ 0.69 $ 0.68
Convertible notes | Minimum | Level 3    
Fair Value Measurement    
Risk-free interest rate (in percent)   4.24%
Volatility (in percent)   105.00%
Stock options | Minimum    
Fair Value Measurement    
Contractual term (years) 5 years  
Stock options | Maximum    
Fair Value Measurement    
Contractual term (years) 6 years