Stockholders' Equity (Narrative) (Details) (USD $)
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3 Months Ended |
12 Months Ended |
0 Months Ended |
1 Months Ended |
0 Months Ended |
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Mar. 31, 2015
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Mar. 31, 2014
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Dec. 31, 2014
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Dec. 31, 2011
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Sep. 03, 2014
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Oct. 21, 2013
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Jul. 22, 2010
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May 05, 2014
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Nov. 12, 2014
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Dec. 31, 2013
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Jul. 17, 2006
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Common Stock, Shares Authorized |
500,000,000us-gaap_CommonStockSharesAuthorized
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500,000,000us-gaap_CommonStockSharesAuthorized
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Common Stock, Shares, Outstanding |
18,082,874us-gaap_CommonStockSharesOutstanding
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18,082,874us-gaap_CommonStockSharesOutstanding
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Class of Warrant or Right, Outstanding |
4,886,764us-gaap_ClassOfWarrantOrRightOutstanding
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2,284,996us-gaap_ClassOfWarrantOrRightOutstanding
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Number of options outstanding |
1,912,157us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
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2,026,564us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
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1,564,257us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
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Number of options vested and expected to vest outstanding |
1,449,850us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
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1,564,257us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
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Aggregate intrinsic value |
$ 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue
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$ 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue
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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value |
$ 1.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue
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$ 1.55us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedIntrinsicValue
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Restricted stock grants estimated forfeiture amount |
1.50%ltbr_RestrictedStockGrantsEstimatedForfeitureAmount
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Share based compensation |
81,681us-gaap_ShareBasedCompensation
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59,796us-gaap_ShareBasedCompensation
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Common Stock issued |
18,082,874us-gaap_CommonStockSharesIssued
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18,082,874us-gaap_CommonStockSharesIssued
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Volitility rate |
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90.44%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
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94.32%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
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Risk-free interest rate |
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1.68%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
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3.35%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
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Dividend yield |
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0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
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0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
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Expected term |
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5 years
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10 years
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Stock options granted |
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
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579,429us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
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Fair value of stock options granted |
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$ 10.61ltbr_ShareBasedCompenationWeightedAverageFairValue
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$ 10.61ltbr_ShareBasedCompenationWeightedAverageFairValue
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Approximations [Member] |
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Stock option expense |
81,681us-gaap_StockOptionPlanExpense / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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40,150us-gaap_StockOptionPlanExpense / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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Share based compensation |
100,000us-gaap_ShareBasedCompensation / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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Chief Executive Officer [Member] |
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Non-qualified stock options |
820,396ltbr_NonQualifiedStockOptions / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember
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Issuance of 255,202 non-qualified 10 year options [Member] |
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Non-qualified stock options |
255,202ltbr_NonQualifiedStockOptions / ltbr_EquityTransactionAxis = ltbr_IssuanceOfTwoFiveFiveTwoZeroTwoNonqualifiedOneZeroYearOptionsMember
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Contractural lives |
10 years
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Lower Limit |
$ 4.50us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / ltbr_EquityTransactionAxis = ltbr_IssuanceOfTwoFiveFiveTwoZeroTwoNonqualifiedOneZeroYearOptionsMember
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Upper Limit |
$ 14.40us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / ltbr_EquityTransactionAxis = ltbr_IssuanceOfTwoFiveFiveTwoZeroTwoNonqualifiedOneZeroYearOptionsMember
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Registered Direct Offering and Outstanding Warrants [Member] |
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Equity Issuance, Per Share Amount |
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$ 2.30us-gaap_EquityIssuancePerShareAmount / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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Common Stock issued |
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132,822us-gaap_CommonStockSharesIssued / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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Proceeds from Issuance of Common Stock |
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305,931us-gaap_ProceedsFromIssuanceOfCommonStock / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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Common stock and warrants sold |
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2,500,000ltbr_CommonStockAndWarrantsSold / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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2,069,992ltbr_CommonStockAndWarrantsSold / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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Common stock to be purchased in the Offering |
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1,250,000us-gaap_CommonStockOtherSharesOutstanding / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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1,034,996us-gaap_CommonStockOtherSharesOutstanding / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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Exercisable term |
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7 years 6 months
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Shares of common stock to be purchased by fixed combination |
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0.5ltbr_SharesOfCommonStockToBePurchasedByFixedCombination / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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0.5ltbr_SharesOfCommonStockToBePurchasedByFixedCombination / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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Purchase price of fixed combination |
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1.75ltbr_PurchasePriceOfFixedCombination / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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6.60ltbr_PurchasePriceOfFixedCombination / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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Warrant exercise price |
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$ 2.30invest_InvestmentWarrantsExercisePrice / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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$ 9.00invest_InvestmentWarrantsExercisePrice / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember
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Registered Direct Offering and Outstanding Warrants [Member] | Approximations [Member] |
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Proceeds from Issuance of Common Stock |
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4,400,000us-gaap_ProceedsFromIssuanceOfCommonStock / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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13,700,000us-gaap_ProceedsFromIssuanceOfCommonStock / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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Risk-free interest rate |
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2.01%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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May 5, 2014 Stock Options Granted [Member] |
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Volitility rate |
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90.44%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / ltbr_EquityTransactionAxis = ltbr_MayFiveTwoZeroOneFourStockOptionsGrantedMember
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Risk-free interest rate |
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1.68%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / ltbr_EquityTransactionAxis = ltbr_MayFiveTwoZeroOneFourStockOptionsGrantedMember
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Dividend yield |
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0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / ltbr_EquityTransactionAxis = ltbr_MayFiveTwoZeroOneFourStockOptionsGrantedMember
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Expected term |
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5 years
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Strike Price |
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$ 2.55ltbr_StrikePrice / ltbr_EquityTransactionAxis = ltbr_MayFiveTwoZeroOneFourStockOptionsGrantedMember
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Stock options granted |
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579,429us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / ltbr_EquityTransactionAxis = ltbr_MayFiveTwoZeroOneFourStockOptionsGrantedMember
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Fair value of stock options granted |
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$ 1.79ltbr_ShareBasedCompenationWeightedAverageFairValue / ltbr_EquityTransactionAxis = ltbr_MayFiveTwoZeroOneFourStockOptionsGrantedMember
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Fair market value on measurement date |
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$ 0.69ltbr_FairMarketValueOnMeasurementDate / ltbr_EquityTransactionAxis = ltbr_MayFiveTwoZeroOneFourStockOptionsGrantedMember
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Pre-vesting forfeiture rate |
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1.50%ltbr_PreVestingForfeitureRate / ltbr_EquityTransactionAxis = ltbr_MayFiveTwoZeroOneFourStockOptionsGrantedMember
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Issuance of 1,465,008 non-qualified 5-10 year options [Member] |
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Non-qualified stock options |
1,465,008ltbr_NonQualifiedStockOptions / ltbr_EquityTransactionAxis = ltbr_IssuanceOfOneFourSixFiveZeroZeroEightNonqualifiedFiveOneZeroYearOptionsMember
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Lower Limit |
$ 2.55us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / ltbr_EquityTransactionAxis = ltbr_IssuanceOfOneFourSixFiveZeroZeroEightNonqualifiedFiveOneZeroYearOptionsMember
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Upper Limit |
$ 23.85us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / ltbr_EquityTransactionAxis = ltbr_IssuanceOfOneFourSixFiveZeroZeroEightNonqualifiedFiveOneZeroYearOptionsMember
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Issuance of 191,947 non-qualified 5-10 year options [Member] |
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Non-qualified stock options |
191,947ltbr_NonQualifiedStockOptions / ltbr_EquityTransactionAxis = ltbr_IssuanceOfOneNineOneNineFourSevenNonqualifiedFiveOneZeroYearOptionsMember
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Lower Limit |
$ 2.55us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / ltbr_EquityTransactionAxis = ltbr_IssuanceOfOneNineOneNineFourSevenNonqualifiedFiveOneZeroYearOptionsMember
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Upper Limit |
$ 15.30us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / ltbr_EquityTransactionAxis = ltbr_IssuanceOfOneNineOneNineFourSevenNonqualifiedFiveOneZeroYearOptionsMember
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November 12, 2014 Offering [Member] |
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Proceeds from Issuance of Common Stock |
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5,000,000us-gaap_ProceedsFromIssuanceOfCommonStock / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Common stock and warrants sold |
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2,878,516ltbr_CommonStockAndWarrantsSold / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Common stock to be purchased in the Offering |
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2,734,590us-gaap_CommonStockOtherSharesOutstanding / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Shares of common stock to be purchased by fixed combination |
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0.95ltbr_SharesOfCommonStockToBePurchasedByFixedCombination / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Purchase price of fixed combination |
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1.75ltbr_PurchasePriceOfFixedCombination / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Warrant exercise price |
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$ 2.31invest_InvestmentWarrantsExercisePrice / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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November 12, 2014 Offering [Member] | Approximations [Member] |
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Net proceeds from the Offering received after payments of fees and expenses |
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4,500,000ltbr_NetProceedsFromTheOfferingReceivedAfterPaymentsOfFeesAndExpenses / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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Amount allocated from the Offering to common stock |
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2,700,000us-gaap_AdjustmentsToAdditionalPaidInCapitalOther / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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Amount allocated from the Offering to warrants |
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1,800,000us-gaap_ProceedsFromIssuanceOfWarrants / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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Issued to Investors on July 28, 2010 [Member] |
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Class of Warrant or Right, Outstanding |
1,034,996us-gaap_ClassOfWarrantOrRightOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnJulyTwoEightTwoZeroOneZeroMember
|
1,034,996us-gaap_ClassOfWarrantOrRightOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnJulyTwoEightTwoZeroOneZeroMember
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Common stock to be purchased in the Offering |
1,034,996us-gaap_CommonStockOtherSharesOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnJulyTwoEightTwoZeroOneZeroMember
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Warrant exercise price |
$ 9.00invest_InvestmentWarrantsExercisePrice / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnJulyTwoEightTwoZeroOneZeroMember
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Issued to Investors on October 25, 2013 [Member] |
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Class of Warrant or Right, Outstanding |
1,117,178us-gaap_ClassOfWarrantOrRightOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnOctoberTwoFiveTwoZeroOneThreeMember
|
1,250,000us-gaap_ClassOfWarrantOrRightOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnOctoberTwoFiveTwoZeroOneThreeMember
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Common stock to be purchased in the Offering |
1,250,000us-gaap_CommonStockOtherSharesOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnOctoberTwoFiveTwoZeroOneThreeMember
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Warrant exercise price |
$ 2.30invest_InvestmentWarrantsExercisePrice / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnOctoberTwoFiveTwoZeroOneThreeMember
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Issued to Investors on November 17, 2014 [Member] |
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Class of Warrant or Right, Outstanding |
2,734,590us-gaap_ClassOfWarrantOrRightOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnNovemberOneSevenTwoZeroOneFourMember
|
0us-gaap_ClassOfWarrantOrRightOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnNovemberOneSevenTwoZeroOneFourMember
|
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Common stock to be purchased in the Offering |
2,734,590us-gaap_CommonStockOtherSharesOutstanding / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnNovemberOneSevenTwoZeroOneFourMember
|
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Warrant exercise price |
$ 2.31invest_InvestmentWarrantsExercisePrice / ltbr_EquityTransactionAxis = ltbr_IssuedToInvestorsOnNovemberOneSevenTwoZeroOneFourMember
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Minimum [Member] | Chief Executive Officer [Member] |
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Contractural lives |
0 years 8 months 12 days
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Minimum [Member] | Directors, Officers and Employees [Member] |
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Contractural lives |
1 year 3 months 18 days
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Minimum [Member] | Registered Direct Offering and Outstanding Warrants [Member] |
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Maximum common stock ownership to be eligible for exercise of warrants |
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4.99%ltbr_MaximumCommonStockOwnershipToBeEligibleForExerciseOfWarrants / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember / us-gaap_RangeAxis = us-gaap_MinimumMember
|
4.99%ltbr_MaximumCommonStockOwnershipToBeEligibleForExerciseOfWarrants / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember / us-gaap_RangeAxis = us-gaap_MinimumMember
|
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Minimum [Member] | Issuance of 1,465,008 non-qualified 5-10 year options [Member] |
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Contractural lives |
5 years
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Minimum [Member] | Issuance of 191,947 non-qualified 5-10 year options [Member] |
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Contractural lives |
5 years
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Minimum [Member] | November 12, 2014 Offering [Member] |
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Maximum common stock ownership to be eligible for exercise of warrants |
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|
4.99%ltbr_MaximumCommonStockOwnershipToBeEligibleForExerciseOfWarrants / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember / us-gaap_RangeAxis = us-gaap_MinimumMember
|
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Maximum [Member] | Chief Executive Officer [Member] |
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Contractural lives |
6 years
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Maximum [Member] | Directors, Officers and Employees [Member] |
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Contractural lives |
6 years
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Maximum [Member] | Registered Direct Offering and Outstanding Warrants [Member] |
|
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Maximum common stock ownership to be eligible for exercise of warrants |
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9.99%ltbr_MaximumCommonStockOwnershipToBeEligibleForExerciseOfWarrants / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember / us-gaap_RangeAxis = us-gaap_MaximumMember
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9.99%ltbr_MaximumCommonStockOwnershipToBeEligibleForExerciseOfWarrants / ltbr_EquityTransactionAxis = ltbr_RegisteredDirectOfferingAndOutstandingWarrantsMember / us-gaap_RangeAxis = us-gaap_MaximumMember
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Maximum [Member] | Issuance of 1,465,008 non-qualified 5-10 year options [Member] |
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Contractural lives |
10 years
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Maximum [Member] | Issuance of 191,947 non-qualified 5-10 year options [Member] |
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Contractural lives |
10 years
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Maximum [Member] | November 12, 2014 Offering [Member] |
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Maximum common stock ownership to be eligible for exercise of warrants |
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19.99%ltbr_MaximumCommonStockOwnershipToBeEligibleForExerciseOfWarrants / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember / us-gaap_RangeAxis = us-gaap_MaximumMember
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Maximum number of shares in respect to stock options [Member] |
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Common Stock, Capital Shares Reserved for Future Issuance |
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266,667us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_AwardTypeAxis = ltbr_MaximumNumberOfSharesInRespectToStockOptionsMember
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Stock and Stock Equivalents [Member] |
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Common Stock, Shares, Outstanding |
24,881,795us-gaap_CommonStockSharesOutstanding / us-gaap_AwardTypeAxis = ltbr_StockAndStockEquivalentsMember
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Stock Compensation Plan [Member] |
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Common Stock, Capital Shares Reserved for Future Issuance |
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2,500,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_AwardTypeAxis = us-gaap_StockCompensationPlanMember
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Maximum restricted shares granted [Member] |
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Common Stock, Capital Shares Reserved for Future Issuance |
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1,250,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_AwardTypeAxis = ltbr_MaximumRestrictedSharesGrantedMember
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Maximum restricted shares granted to one person [Member] |
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Common Stock, Capital Shares Reserved for Future Issuance |
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166,667us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_AwardTypeAxis = ltbr_MaximumRestrictedSharesGrantedToOnePersonMember
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Stock-based compensation [Member] | Approximations [Member] |
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Share based compensation |
$ 100,000us-gaap_ShareBasedCompensation / us-gaap_AwardTypeAxis = ltbr_StockbasedCompensationMember / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember
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Restricted Stock [Member] |
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Restricted stock grants estimated forfeiture amount |
0.00%ltbr_RestrictedStockGrantsEstimatedForfeitureAmount / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
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Warrants [Member] |
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Class of Warrant or Right, Outstanding |
1,117,178us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember
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Volitility rate |
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104.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = us-gaap_WarrantMember
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Dividend yield |
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0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_AwardTypeAxis = us-gaap_WarrantMember
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Expected term |
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7 years 6 months
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Warrants [Member] | November 12, 2014 Offering [Member] |
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Class of Warrant or Right, Outstanding |
2,734,590us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Volitility rate |
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67.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Risk-free interest rate |
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2.07%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Dividend yield |
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0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_AwardTypeAxis = us-gaap_WarrantMember / ltbr_EquityTransactionAxis = ltbr_NovemberOneTwoTwoZeroOneFourOfferingMember
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Expected term |
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7 years 6 months
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