Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Narrative) (Details)

v2.4.1.9
Commitments and Contingencies (Narrative) (Details) (USD $)
 0 Months Ended 12 Months Ended
Oct. 16, 2013
Dec. 31, 2014
Dec. 31, 2013
Operating lease term 1 year 38 months  
Fairfax County Complaint 1 [Member]      
Compensatory damages sought   $ 1,000,000us-gaap_LossContingencyDamagesSoughtValue
/ us-gaap_LitigationCaseAxis
= ltbr_FairfaxCountyComplaintOneMember 		 
Fairfax County Complaint 2 [Member]      
Compensatory damages sought   15,507.19us-gaap_LossContingencyDamagesSoughtValue
/ us-gaap_LitigationCaseAxis
= ltbr_FairfaxCountyComplaintTwoMember 		 
Approximations [Member]      
Monthly rental fees 32,000us-gaap_LeaseAndRentalExpense
/ us-gaap_StatementScenarioAxis
= ltbr_ApproximationsMember 		32,000us-gaap_LeaseAndRentalExpense
/ us-gaap_StatementScenarioAxis
= ltbr_ApproximationsMember 		 
Rent expense   500,000us-gaap_OperatingLeasesRentExpenseNet
/ us-gaap_StatementScenarioAxis
= ltbr_ApproximationsMember 		700,000us-gaap_OperatingLeasesRentExpenseNet
/ us-gaap_StatementScenarioAxis
= ltbr_ApproximationsMember
Approximations [Member] | Moscow Office [Member]      
Monthly rental fees   $ 12,000us-gaap_LeaseAndRentalExpense
/ ltbr_LeaseAgreementAxis
= ltbr_MoscowOfficeMember
/ us-gaap_StatementScenarioAxis
= ltbr_ApproximationsMember