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Equity - Schedule of Weighted Average Assumptions (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Equity [Abstract]        
Expected volatility 89.17% 94.84% 89.18% 93.86%
Expected dividends 0.00% 0.00% 0.00% 0.00%
Expected terms (years) 6 years 25 days 6 years 25 days 6 years 10 days 6 years 7 days
Risk free rate 0.83% 0.34% 0.89% 0.42%