Annual report pursuant to Section 13 and 15(d)

Cover

v3.22.0.1
Cover - USD ($)
 12 Months Ended
Dec. 31, 2021
Mar. 03, 2022
Jun. 30, 2021
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, 2021    
Entity Filer Category Non-accelerated Filer    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2021    
Entity Common Stock Shares Outstanding   217,193,664  
Entity Public Float     $ 243.3
Document Annual Report true    
Document Transition Report false    
Entity File Number 001-33905    
Entity Incorporation State Country Code Z4    
Entity Interactive Data Current Yes    
Icfr Auditor Attestation Flag false    
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    
Local Phone Number 981-4588    
City Area Code 720    
Security 12b Title Common Shares, no par value    
Security Exchange Name NYSEAMER    
Trading Symbol URG    
Auditor Name PricewaterhouseCoopers LLP    
Auditor Location Vancouver, Canada    
Auditor Firm Id 271