Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Options Other Info (Details)

v3.22.2.2
Stockholders' Equity - Options Other Info (Details) - USD ($)
$ / shares in Units, $ in Millions
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Options outstanding    
Closing price of Company's stock (in dollars per share) $ 0.1532  
Employee Stock Option    
Options outstanding    
Unrecognized compensation expense $ 3.6  
Weighted average remaining period for recognition of unrecognized compensation expense 2 years 3 months 18 days  
Per-share weighted-average grant date fair value of options granted (in dollars per share) $ 0.36 $ 1.45
Employee Stock Option | Weighted-average    
Weighted-average assumptions:    
Expected term of options (in years) 5 years 8 months 12 days 6 years 1 month 6 days
Risk-free interest rate (as a percent) 2.70% 0.90%
Expected volatility (as a percent) 98.00% 97.80%