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Stockholders' Equity - Estimates Utilized (Details) - Stock Option - $ / shares
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value of options issued (in dollars per share) $ 2.49 $ 5.39
Exercise price (USD per share) $ 3.04 $ 6.65
Expected life of options (in years) 6 years 1 month 6 days 6 years 1 month 6 days
Risk-free interest rate 3.50% 3.00%
Expected volatility 101.80% 104.00%
Dividend yield 0.00% 0.00%