Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
12 Months Ended
Dec. 31, 2022
Mar. 30, 2023
Jun. 30, 2022
Cover [Abstract]      
Entity Registrant Name LIGHTBRIDGE CORPORATION    
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, 2022    
Entity Filer Category Non-accelerated Filer    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Entity Common Stock Shares Outstanding   12,126,030  
Entity Public Float     $ 49,899,793
Document Annual Report true    
Document Transition Report false    
Entity File Number 001-34487    
Entity Incorporation State Country Code NV    
Entity Tax Identification Number 91-1975651    
Entity Interactive Data Current Yes    
Icfr Auditor Attestation Flag false    
Entity Address Address Line 1 11710 Plaza America Drive,    
Entity Address Address Line 2 Suite 2000    
Entity Address City Or Town Reston    
Entity Address State Or Province VA    
Entity Address Postal Zip Code 20190    
City Area Code 571    
Local Phone Number 730-1200    
Security 12b Title Common Stock, $0.001 par value    
Trading Symbol LTBR    
Security Exchange Name NASDAQ    
Auditor Firm Id 243    
Auditor Location Philadelphia, PA    
Auditor Name BDO USA, LLP