XML 72 R45.htm IDEA: XBRL DOCUMENT v3.23.1
Stock-Based Compensation, Assumptions Used to Value Stock Options Granted (Details) - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Assumptions Used in Determining Fair Value of Stock Options and Warrants Granted [Abstract]    
Volatility 99.63% 100.53%
Risk-free interest rate 1.79% 0.49%
Expected term 6 years 4 months 20 days 6 years 21 days
Dividend rate 0.00% 0.00%
Fair value of option on grant date (in dollars per share) $ 4.4 $ 7.65