Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.4.0.3
Document And Entity Information - shares
3 Months Ended
Mar. 31, 2016
May. 05, 2016
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q1  
Entity Current Reporting Status Yes  
Entity Common Stock, Shares Outstanding   143,440,573
Entity Registrant Name UR-ENERGY INC  
Entity Central Index Key 0001375205  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer