Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.20.1
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2019
Mar. 09, 2020
Jun. 28, 2019
Document And Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2019    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Title of 12(b) Security Common Stock, par value $0.001 per share    
Trading Symbol PIRS    
Security Exchange Name NASDAQ    
Entity Registrant Name PIERIS PHARMACEUTICALS, INC.    
Entity Central Index Key 0001583648    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Emerging Growth Company false    
Entity Small Business true    
Entity Shell Company false    
Entity Interactive Data Current Yes    
Entity Public Float     $ 206,297,429
Entity Common Stock, Shares Outstanding   55,212,437