v3.25.4
Cover - $ / shares
3 Months Ended
Dec. 31, 2025
Feb. 11, 2026
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Dec. 31, 2025  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --09-30  
Entity File Number 001-41988  
Entity Registrant Name IB ACQUISITION CORP.  
Entity Central Index Key 0001998781  
Entity Tax Identification Number 85-2946784  
Entity Incorporation, State or Country Code NV  
Entity Address, Address Line One 1200 N Federal Highway  
Entity Address, Address Line Two Suite 215  
Entity Address, City or Town Boca Raton  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33432  
City Area Code (214)  
Local Phone Number 687-0020  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company true  
Entity Common Stock, Shares Outstanding   5,739,970
Entity Listing, Par Value Per Share $ 0.0001  
Shares of Common Stock, Par Value $0.0001 Per Share [Member]    
Title of 12(b) Security Shares of common stock, par value $0.0001 per share  
Trading Symbol IBAC  
Security Exchange Name NASDAQ  
Rights, each Entitling Holder to Receive One-Twentieth of One Share of Common Stock [Member]    
Title of 12(b) Security Rights, each entitling the holder to receive one-twentieth of one share of common stock  
Trading Symbol IBACR  
Security Exchange Name NASDAQ