Quarterly report pursuant to Section 13 or 15(d)

Cover

v3.21.2
Cover - shares
 6 Months Ended
Jun. 30, 2021
Jul. 28, 2021
Cover [Abstract]    
Entity Registrant Name UR-ENERGY INC.  
Entity Central Index Key 0001375205  
Document Type 10-Q  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Small Business true  
Entity Shell Company false  
Entity Emerging Growth Company false  
Entity Current Reporting Status Yes  
Document Period End Date Jun. 30, 2021  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2021  
Entity Common Stock Shares Outstanding   195,407,043
Document Quarterly Report true  
Document Transition Report false  
Entity File Number 001-33905  
Entity Incorporation State Country Code Z4  
Entity Tax Identification Number 00-0000000  
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  
Local Phone Number 981-4588  
Security 12b Title Common stock  
Trading Symbol URG  
Security Exchange Name NYSE  
Entity Interactive Data Current Yes