Quarterly report pursuant to Section 13 or 15(d)

Corporate Information - Narrative (Details)

v3.21.2
Corporate Information - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
May 31, 2013
Business Acquisition [Line Items]            
Cash, cash equivalents and investments $ 125,100   $ 125,100      
Net loss (16,536) $ (14,283) (36,206) $ (22,830)    
Accumulated deficit $ (247,612)   $ (247,612)   $ (211,406)  
Pieris Pharmaceuticals GmbH            
Business Acquisition [Line Items]            
Ownership interest acquired (as a percent)           100.00%