XML 37 R28.htm IDEA: XBRL DOCUMENT v3.22.2.2
Stock-Based Compensation - Assumptions (Details)
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Fair value assumptions    
Expected volatility   79.70%
Minimum    
Fair value assumptions    
Expected term 5 years 6 months 5 years 6 months
Expected volatility 79.70%  
Risk free interest rate 1.80% 0.80%
Maximum    
Fair value assumptions    
Expected term 6 years 1 month 6 days 6 years 1 month 6 days
Expected volatility 81.40%  
Risk free interest rate 4.00% 1.40%