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Stock-Based Compensation, Assumptions Used to Value Stock Options and Warrants Granted (Details) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Assumptions Used in Determining Fair Value of Stock Options and Warrants Granted [Abstract]        
Volatility 143.87% 100.05% 142.07% 99.45%
Risk-free interest rate 3.59% 2.60% 4.05% 11.62%
Expected term 6 years 29 days 6 years 7 days 6 years 29 days 6 years 5 months 4 days
Dividend rate 0.00% 0.00% 0.00% 0.00%
Fair value of option on grant date (in dollars per share) $ 5.09 $ 4.01 $ 10.64 $ 4.59
Stock Options [Member]        
Stock-Based Compensation [Abstract]        
Options granted (in shares) 29,900 494,000 1,154,500 1,439,005