v3.26.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2026
Jun. 01, 2026
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Current Fiscal Year End Date --12-31  
Document Period End Date Mar. 31, 2026  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2026  
Entity File Number 001-43268  
Entity Registrant Name Rare Earths Americas, Inc.  
Entity Incorporation, State or Country Code TX  
Entity Tax Identification Number 39-4918133  
Entity Address, Address Line One 101 W. Main Street  
Entity Address, City or Town Manchester  
Entity Address, State or Province GA  
Entity Address, Postal Zip Code 31816  
City Area Code 706  
Local Phone Number 846-5063  
Title of 12(b) Security Common stock, $ 0.0001 par value  
Trading Symbol REA  
Security Exchange Name NYSEAMER  
Entity Central Index Key 0002095743  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   19,907,282