Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2019
Mar. 02, 2020
Jun. 30, 2019
Document And Entity Information      
Entity Registrant Name LIGHTBRIDGE Corp    
Entity Central Index Key 0001084554    
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, 2019    
Entity Filer Category Non-accelerated Filer    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2019    
Entity Common Stock Shares Outstanding   3,304,526  
Entity Public Float     $ 24,657,692
EntityFileNumber 001-34487    
EntityAddressAddressLine1 11710 Plaza America Drive,    
EntityAddressAddressLine2 Suite 2000    
EntityAddressPostalZipCode 20190    
EntityTaxIdentificationNumber 911975651    
EntityAddressCityOrTown Reston    
LocalPhoneNumber 7301200    
CityAreaCode 571    
EntityAddressStateOrProvince VIRGINIA