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Stockholders' Equity (Deficit), Warrant Liability Classified to Additional Paid in Capital (Details) - USD ($)
12 Months Ended
Mar. 13, 2019
Dec. 31, 2020
Dec. 31, 2019
Feb. 28, 2019
Dec. 31, 2018
Warrant Liability Classified to Additional Paid in Capital [Abstract]          
Shares purchased with warrant (in shares) 45,288        
Exercise price of warrant (in dollars per share) $ 9.87     $ 9.87  
Fair value of warrant liability $ 372,925       $ 291,225
Increase in warrant liability 81,700 $ 0 $ 81,700    
Issuance of warrant in consideration for settlement agreement $ 372,925 $ 0 $ 372,925    
Stock-Based Compensation [Abstract]          
Volatility 83.00% 97.50% 88.70%    
Risk-free interest rate 2.63% 0.39% 2.31%    
Expected term 10 years 6 years 14 days 5 years 6 months 14 days    
Dividend rate 0.00% 0.00% 0.00%    
Fair value of warrant (in dollars per share) $ 8.23 $ 1.14 $ 5.67