Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

Document And Entity Information - shares
6 Months Ended
Jun. 30, 2019
Jul. 31, 2019
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Interactive Data Current Yes  
Entity Common Stock, Shares Outstanding   159,947,625
Entity Registrant Name UR-ENERGY INC  
Entity Central Index Key 0001375205  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer