v3.7.0.1
Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Mar. 10, 2017
Jun. 30, 2016
Document and Entity Information      
Entity Registrant Name Corvus Pharmaceuticals, Inc.    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Central Index Key 0001626971    
Document Type 10-K    
Document Period End Date Dec. 31, 2016    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Current Reporting Status Yes    
Entity Filer Category Non-accelerated Filer    
Entity Public Float     $ 118.6
Entity Common Stock, Shares Outstanding   20,933,387  
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY