v3.26.1
Cover
 9 Months Ended
Dec. 31, 2025
Entity Addresses [Line Items]  
Document Type S-1
Amendment Flag false
Entity Registrant Name OFA GROUP
Entity Central Index Key 0002036307
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 609 Deep Valley Drive
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Rolling Hills
Entity Address, State or Province CA
Entity Address, Postal Zip Code 90274
City Area Code (800)
Local Phone Number 418-5160
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One 609 Deep Valley Drive
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Rolling Hills
Entity Address, State or Province CA
Entity Address, Postal Zip Code 90274
City Area Code (571)
Local Phone Number 246-1145
Contact Personnel Name Thomas Gaffney