Critical Accounting Policies - Additional Information (Detail)
|3 Months Ended|
Mar. 31, 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.|
A description of each milestone and related contingent consideration as well as a description of whether or not each milestone(s) is considered substantive.
Reference 1: http://www.xbrl.org/2003/role/presentationRef