Quarterly report pursuant to Section 13 or 15(d)

Critical Accounting Policies - Additional Information (Detail)

v3.8.0.1
Critical Accounting Policies - Additional Information (Detail)
9 Months Ended
Sep. 30, 2017
Accounting Policies [Abstract]  
Milestones arrangement, categories description Pieris aggregates milestones into four categories (i) research milestones, (ii) development milestones, (iii) commercial milestones, and (iv) sales milestones.