Annual report pursuant to Section 13 and 15(d)

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

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Stockholders' Equity - Underwritten Registered and ATM Offerings (Details) - USD ($)
12 Months Ended
Jan. 21, 2020
Dec. 31, 2020
Dec. 31, 2019
Proceeds from the issuance of common stock   $ 117,373,495 $ 18,898
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      
Issuance of common stock (in shares)   13,175,677  
Average price of common stock   $ 8.69  
Proceeds from the issuance of common stock   $ 114,400,000  
At The Market Offering | Maximum      
Percentage of commission for common stock sold   3.00%