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Organization and Description of Business (Details)
Mar. 19, 2020
Mar. 18, 2020
shares
Mar. 31, 2020
shares
Dec. 31, 2019
shares
Conversion of Stock [Line Items]        
Stock conversion ratio   0.1111    
Common stock, outstanding shares   8,292,803 8,292,803 1,177,933
Private Lumos Stockholders | NewLink Genetics        
Conversion of Stock [Line Items]        
Ownership percentage after transaction 0.50      
Former Stockholders        
Conversion of Stock [Line Items]        
Ownership percentage after transaction 0.50      
Common Stock        
Conversion of Stock [Line Items]        
Stock conversion ratio   0.1308319305    
Common Stock | Private Lumos Stockholders        
Conversion of Stock [Line Items]        
Aggregate shares received (in shares)   4,146,398    
Preferred Stock Series A        
Conversion of Stock [Line Items]        
Stock conversion ratio   0.0873621142    
Preferred Stock Series B        
Conversion of Stock [Line Items]        
Stock conversion ratio   0.1996348626