v2.4.0.6
Document and Entity Information (USD $)
12 Months Ended
Dec. 31, 2011
Mar. 19, 2012
Entity Information [Line Items]    
Entity Registrant Name NEWLINK GENETICS CORP  
Entity Central Index Key 0001126234  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Document Type 10-K  
Document Period End Date Dec. 31, 2011  
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus FY  
Amendment Flag false  
Entity Common Stock, Shares Outstanding 20,662,029  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status No  
Entity Public Float   $ 122,788,546