Pieris Pharmaceuticals, Inc. Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Revenue - Potential Milestone Payments Received (Details) - Collaborative Arrangement [Member] $ in Millions	Mar. 31, 2024 USD ($)
Research And Development Milestone Payments [Member]
milestone	$ 949
Research And Development Milestone Payments [Member] \| Pfizer [Member]
milestone	759
Research And Development Milestone Payments [Member] \| Servier Developed Collaboration Products [Member]
milestone	105
Research And Development Milestone Payments [Member] \| Boston Pharmaceuticals [Member]
milestone	85
Sales Milestone Payments [Member]
milestone	812
Sales Milestone Payments [Member] \| Pfizer [Member]
milestone	450
Sales Milestone Payments [Member] \| Servier Developed Collaboration Products [Member]
milestone	97
Sales Milestone Payments [Member] \| Boston Pharmaceuticals [Member]
milestone	$ 265