Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Feb. 29, 2024
Jun. 30, 2023
Cover [Abstract]      
Entity Registrant Name UR-ENERGY INC.    
Entity Central Index Key 0001375205    
Document Type 10-K    
Amendment Flag false    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Well Known Seasoned Issuer No    
Entity Small Business true    
Entity Shell Company false    
Entity Emerging Growth Company false    
Entity Current Reporting Status Yes    
Document Period End Date Dec. 31, 2023    
Entity Filer Category Non-accelerated Filer    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Entity Common Stock Shares Outstanding   281,626,324  
Entity Public Float     $ 252.3
Document Annual Report true    
Document Transition Report false    
Document Fin Stmt Error Correction Flag false    
Entity File Number 001-33905    
Entity Incorporation State Country Code Z4    
Entity Address Address Line 1 10758 West Centennial Road    
Entity Address Address Line 2 Suite 200    
Entity Address City Or Town Littleton    
Entity Address State Or Province CO    
Entity Address Postal Zip Code 80127    
City Area Code 720    
Icfr Auditor Attestation Flag false    
Auditor Name PricewaterhouseCoopers LLP    
Auditor Location Vancouver, Canada    
Auditor Firm Id 271    
Local Phone Number 981-4588    
Security 12b Title Common Shares, no par value    
Trading Symbol URG    
Security Exchange Name NYSE    
Entity Interactive Data Current Yes