Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Narrative (Details)

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Commitments and Contingencies - Narrative (Details) - USD ($)
3 Months Ended
Sep. 15, 2020
Feb. 01, 2016
Mar. 31, 2021
Mar. 31, 2020
Nov. 20, 2019
Other Commitments [Line Items]          
Percentage of license income entitlement     50.00%    
Purchase obligations     $ 2,000,000.0    
Purchase obligation, due June 2021     400,000    
Purchase obligation, due June 2022     1,600,000    
Penalty payment         $ 400,000
Term of extension 12 months        
Future minimum lease payments     100,000    
Postemployment benefits liability     3,600,000    
Office Space Lease Arrangement          
Other Commitments [Line Items]          
Term of contract   63 months      
Rent expense     23,600 $ 23,600  
Office Space Lease Arrangement | Minimum          
Other Commitments [Line Items]          
Monthly payments for rent   $ 7,600      
Office Space Lease Arrangement | Maximum          
Other Commitments [Line Items]          
Monthly payments for rent   $ 8,900      
MD Anderson          
Other Commitments [Line Items]          
Expenses from transactions with related party     100,000 $ 100,000  
Amount owed from related parties     $ 42,500    
Issuance of shares during period, new issues (in shares)     175,000