|
Income Taxes (Narrative) (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate | 40.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 40.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | |
| Valuation allowance | 100.00%ltbr_ValuationAllowance | 100.00%ltbr_ValuationAllowance | 100.00%ltbr_ValuationAllowance |
| Approximations [Member] | |||
| Deferred Tax Assets, Operating Loss Carryforwards |
45,600,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember |
||
| Change in valuation allowance |
1,900,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember |
2,000,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_StatementScenarioAxis = ltbr_ApproximationsMember |
|
| X | ||||||||||
|
- Definition
Valuation allowance No definition available.
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|