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Commitments and Contingencies - 2014 Agreement (Details) - USD ($)
12 Months Ended
Sep. 30, 2019
Dec. 31, 2020
Other Commitments [Line Items]    
Pay fees equivalent   3.375%
Accrued liabilities   $ 281,684
Stock issued during the period (in shares) 11,788  
Torreya    
Other Commitments [Line Items]    
Advisory fees   $ 924,972