Annual report pursuant to Section 13 and 15(d)

Organization and Description of Business Operations - Additional Information (Details)

v3.20.4
Organization and Description of Business Operations - Additional Information (Details) - USD ($)
 1 Months Ended 12 Months Ended
Feb. 22, 2021
Sep. 30, 2020
Nov. 30, 2019
Dec. 31, 2020
Dec. 31, 2019
Retained Earnings (Accumulated Deficit)       $ (143,192,000) $ (120,111,000)
Stock Issued During Period, Value, New Issues         $ 8,000,000.0
Common Shares [Member]          
Shares Issued, Price Per Share       $ 2.50 $ 2.50
Stock Issued During Period Shares Common Shares For At The Market Offering       5,104,234 2,273,189
Stock Issued During Period Value Common Shares For At The Market Offering Gross       $ 12,800,000 $ 2,273,189,000,000
Stock Issued During Period Value Common Shares For At The Market Offering Net       $ 12,400,000  
Underwritten Public Offering [Member]          
Stock Issued During Period, Shares, New Issues   7,321,429 15,400,000    
Shares Issued, Price Per Share $ 3.88 $ 2.80 $ 1.27   $ 3.52
Stock Issued During Period, Value, New Issues $ 12,300,000 $ 20,500,000 $ 19,600,000    
Proceeds from Issuance Underwritten Public Offering 12,000,000.0 18,900,000 17,600,000   $ 7,800,000
Payments of Stock Issuance Costs   $ 1,600,000 $ 2,000,000.0    
Stock Issued During Period Value Common Shares For At The Market Offering Gross $ 3,170,216