XML 52 R41.htm IDEA: XBRL DOCUMENT v3.20.2
Fair Value Measurements - Narrative (Details) - USD ($)
Sep. 30, 2020
Aug. 31, 2020
Dec. 31, 2019
Marketable Securities and Fair Value Measurements (Textual) [Abstract]      
Derivative liability $ 0   $ 8,819,023
Level 1      
Marketable Securities and Fair Value Measurements (Textual) [Abstract]      
Number of shares held in an affiliated entity (in shares)   1,644,155  
Level 3      
Marketable Securities and Fair Value Measurements (Textual) [Abstract]      
Derivative liability $ 7,100,000    
Common stock | Level 1      
Marketable Securities and Fair Value Measurements (Textual) [Abstract]      
Investment owned (in shares) 597,808