v3.25.3
Cover - shares
 9 Months Ended
Sep. 30, 2025
Nov. 14, 2025
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Sep. 30, 2025  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Entity File Number 001-40959  
Entity Registrant Name ROTH CH ACQUISITION CO.  
Entity Central Index Key 0001860514  
Entity Tax Identification Number 98-1601095  
Entity Incorporation, State or Country Code E9  
Entity Address, Address Line One 2340 Collins Avenue;  
Entity Address, Address Line Two Suite 402  
Entity Address, City or Town Miami Beach  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33141  
City Area Code (949)  
Local Phone Number 720-7133  
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  
Class Ordinary Share Par Value 0. 0001 Per Share [Member]    
Title of 12(b) Security Class A ordinary share, par value $0.0001 per share  
Trading Symbol USCTF  
Redeemable Warrants Each Warrant Exercisable For One Class Ordinary Share Each At Exercise Price Of 11. 50 Per Share [Member]    
Title of 12(b) Security Redeemable warrants, each warrant exercisable for one Class A ordinary share, each at an exercise price of $11.50 per share  
Trading Symbol USTWF  
Class A Ordinary Shares [Member]    
Entity Common Stock, Shares Outstanding   45,203,220
Class B Ordinary Shares [Member]    
Entity Common Stock, Shares Outstanding   75,000