Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
12 Months Ended
Dec. 31, 2021
Apr. 20, 2022
Jun. 30, 2021
Cover [Abstract]      
Entity Registrant Name LIGHTBRIDGE CORPORATION    
Entity Central Index Key 0001084554    
Document Type 10-K/A    
Amendment Flag true    
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, 2021    
Entity Filer Category Non-accelerated Filer    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2021    
Entity Common Stock Shares Outstanding   10,590,470  
Entity Public Float     $ 46,796,095
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 Address Address Line 1 11710 Plaza America Drive    
Entity Address Address Line 2 Suite 2000    
Entity Address City Or Town Reston    
Security Exchange Name NASDAQ    
Entity Address Postal Zip Code 20190    
City Area Code 571    
Amendment Description This Amendment No. 1 to Form 10-K (the “Amendment”) amends the Annual Report on Form 10-K for the fiscal year ended December 31, 2021 originally filed with the U.S. Securities and Exchange Commission on March 31, 2022 (the “Original Filing”) by Lightbridge Corporation (“Company,” “we,” or “us”). We are filing the Amendment to present the information required by Part III of Form 10-K as we do not anticipate filing our definitive proxy statement within 120 days of December 31, 2021. The reference on the cover page of the Original Filing to the incorporation by reference of portions of the Company’s definitive proxy statement into Part III of the Original Filing is hereby deleted. In accordance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended (“Exchange Act”), Part III, Items 10 through 14 of the Original Filing are hereby amended and restated in their entirety. In addition, new certifications by our principal executive officer and principal financial officer are filed as exhibits to this Amendment, as required by Rule 12b-15 under the Exchange Act. No other changes have been made to the Original Filing other than that described above. This Amendment does not reflect subsequent events occurring after the original filing date of the Original Filing or amend, modify or otherwise update in any way the financial statements, consents or any other disclosures made in the Original Filing in any way other than as required to reflect the amendments discussed above. Accordingly, this Amendment should be read in conjunction with the Original Filing and the Company’s other filings with the SEC subsequent to the filing of the Original Filing.    
Auditor Name BDO USA, LLP    
Auditor Location Philadelphia, PA    
Auditor Firm Id 243    
Local Phone Number 730-1200    
Security 12b Title Common Stock, $0.001 par value    
Trading Symbol LTBR    
Entity Interactive Data Current Yes    
Entity Address State Or Province VA