v3.26.1
Cover
Jun. 05, 2026
Entity Addresses [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 05, 2026
Entity File Number 001-42460
Entity Registrant Name RAIN ENHANCEMENT TECHNOLOGIES HOLDCO, INC.
Entity Central Index Key 0002028293
Entity Tax Identification Number 99-3527155
Entity Incorporation, State or Country Code MA
Entity Address, Address Line One 4851 Tamiami Trail N
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Naples
Entity Address, State or Province FL
Entity Address, Postal Zip Code 34103
City Area Code 339
Local Phone Number 222-6714
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
Class A common stock, par value $0.0001 per share  
Entity Addresses [Line Items]  
Title of 12(b) Security Class A common stock, par value $0.0001 per share
Trading Symbol RAIN
Security Exchange Name NASDAQ
Redeemable warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50  
Entity Addresses [Line Items]  
Title of 12(b) Security Redeemable warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50
Trading Symbol RAINW
Security Exchange Name NASDAQ
Former Address [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One 1659 Chinaberry Ct.
Entity Address, City or Town Naples
Entity Address, State or Province FL
Entity Address, Postal Zip Code 34105