v3.26.1
Cover
Aug. 20, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Aug. 20, 2026
Entity File Number 000-56844
Entity Registrant Name ROCKY MOUNTAINS GROUP LTD
Entity Central Index Key 0002034288
Entity Tax Identification Number 93-2609396
Entity Incorporation, State or Country Code NV
Entity Address, Address Line One E 242 Bucklands Beach Road
Entity Address, Address Line Two Bucklands Beach
Entity Address, City or Town Auckland
Entity Address, Country NZ
Entity Address, Postal Zip Code 2012
City Area Code (+86)
Local Phone Number 18217730216
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false