XML 55 R45.htm IDEA: XBRL DOCUMENT v3.23.1
Stock-Based Compensation - Assumptions Used in the Black-Scholes Option-pricing Model (Details)
3 Months Ended
Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Volatility 109.00%
Dividend yield 0.00%
Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate 3.57%
Expected life (in years) 3 years 9 months 3 days
Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate 4.18%
Expected life (in years) 3 years 9 months 21 days