v3.25.2
Document And Entity Information - shares
6 Months Ended
Jun. 30, 2025
Aug. 08, 2025
Document Information [Line Items]    
Entity Central Index Key 0001583648  
Entity Registrant Name Palvella Therapeutics, Inc.  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2025  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-37471  
Entity Incorporation, State or Country Code NV  
Entity Tax Identification Number 30-0784346  
Entity Address, Address Line One 125 Strafford Ave  
Entity Address, Address Line Two Suite 360  
Entity Address, City or Town Wayne  
Entity Address, State or Province PA  
Entity Address, Postal Zip Code 19087  
City Area Code 484  
Local Phone Number 253-1461  
Title of 12(b) Security Common Stock, $0.001 par value per share  
Trading Symbol PVLA  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   11,059,665