Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
6 Months Ended
Jun. 30, 2018
Jul. 26, 2018
Document And Entity Information    
Entity Registrant Name LIGHTBRIDGE Corp  
Entity Central Index Key 0001084554  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Amendment Flag false  
Trading Symbol ltbr  
Current Fiscal Year End Date --12-31  
Entity Well Known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   29,476,219
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2018