v3.26.3
Document And Entity Information
6 Months Ended
Jun. 30, 2026
Document Information Line Items  
Entity Central Index Key 0001785530
Document Type S-4
Entity Registrant Name WEREWOLF THERAPEUTICS, INC.
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Entity Ex Transition Period true
Amendment Flag false