Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Underwritten Registered and ATM Offerings (Details)

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Stockholders' Equity - Underwritten Registered and ATM Offerings (Details) - USD ($)
9 Months Ended
Jan. 21, 2020
Sep. 30, 2021
Sep. 30, 2020
Proceeds from the issuance of common stock   $ 26,304,282 $ 116,296,762
January 2020 Offering      
Issuance of common stock (in shares) 2,857,142    
Warrants to purchase common stock 1,428,571    
Proceeds from offering $ 7,000,000    
At The Market Offering      
Number of common stock sold   2,106,027  
Average price of common stock   $ 12.18  
Proceeds from the issuance of common stock   $ 25,646,099  
At The Market Offering | Maximum      
Percentage of commission for common stock sold   3.00%