v3.25.4
Document And Entity Information
Mar. 03, 2026
Document Information Line Items  
Entity Central Index Key 0002108164
Amendment Description AMENDMENT NO. 1
Document Type S-1/A
Entity Registrant Name Pono Capital Four, Inc.
Entity Incorporation, State or Country Code E9
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Entity Ex Transition Period false
Amendment Flag true