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Basis of Presentation and Summary of Significant Accounting Policies - Long-Lived Assets (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Impairment of long-lived assets held-for-use $ 0 $ 187,500
Laboratory equipment    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 5 years  
Furniture and office equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 3 years  
Furniture and office equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful lives 5 years