Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2014
Oct. 31, 2015
Jun. 30, 2014
Document Type 10-K    
Amendment Flag true    
Amendment Description In this Annual Report on Form 10-K/A (Amendment No. 2) for the fiscal year ended December 31, 2014 (“Annual Report”), as originally filed with the Securities and Exchange Commission (the “SEC”) on March 25, 2015 (the “Original Report”), Lightbridge Corporation (“Lightbridge,” the “Company,” “we” or “us”) is restating its previously issued and audited consolidated financial statements and the related disclosures for the years ended December 31, 2014 and December 31, 2013 and all quarterly periods included therein (collectively, the “Restated Periods”). As discussed in further detail below and in Note 2 to the accompanying consolidated financial statements, the restatement is the result of a misapplication in the guidance on accounting for warrants. We assessed the impact of this misapplication on our prior interim and annual financial statements and concluded that the combined impact was material to these financial statements. Consequently, we have restated the prior period financial statements identified above. Concurrently with the filing of this Form 10-K/A, the Company is also filing Amendment No. 1 on Form 10-Q/A to each of the Company’s Quarterly Reports on Form 10-Q for the quarterly periods ended March 31, 2015 and June 30, 2015, as originally filed with the SEC on May 7, 2015 and August 19, 2015, respectively. All amounts in this Annual Report affected by the restatement adjustments reflect such amounts as restated.    
Document Period End Date Dec. 31, 2014    
Trading Symbol ltbr    
Entity Registrant Name LIGHTBRIDGE Corp    
Entity Central Index Key 0001084554    
Current Fiscal Year End Date --12-31    
Entity Filer Category Smaller Reporting Company    
Entity Common Stock, Shares Outstanding   18,623,387  
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Well Known Seasoned Issuer No    
Entity Public Float     $ 35,186,138
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus FY