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Summary of Significant Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2012
Basis of Consolidation [Policy Text Block] | Basis of Consolidation These financial statements include the accounts of Lightbridge, a Nevada corporation, and our wholly-owned subsidiaries, TPI, a Delaware corporation, Lightbridge International Holding LLC, a Delaware limited liability company and our foreign branch offices.
Use of Estimates and Assumptions [Policy Text Block] | Use of Estimates and Assumptions The preparation of financial statements, in conformity with accounting principles generally accepted in the United States of America, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Significant Estimates [Policy Text Block] | Significant Estimates These accompanying consolidated financial statements include some amounts that are based on management’s best estimates and judgments. The most significant estimates relate to valuation of stock grants and stock options, the valuation allowance on deferred tax assets and various contingent liabilities. It is reasonably possible that these above-mentioned estimates and others may be adjusted as more current information becomes available, and any adjustment could be significant in future reporting periods.
Certain Risks, Uncertainties and Concentrations [Policy Text Block] | Certain Risks, Uncertainties and Concentrations Management anticipates, based on our current working capital and our current projected working capital requirements, that we will have enough working capital funds to sustain our current operations at our current operating level until 2014. We will need to raise additional capital in 2014 by way of an offering of equity securities, an offering of debt securities, a financing through a bank, or a strategic alliance with another entity. We may also need to raise additional capital sooner for research and development expenses in 2013 if our consulting business segment becomes non-sustaining. Currently, we are working on consulting revenue opportunities with the overall goal of increasing our profitability and cash flow. We participate in a government regulated industry. Our operating results are affected by a wide variety of factors including decreases in the use or public favor of nuclear power, the ability of our technology, the ability to safeguard the production of nuclear power and safeguarding our patents and intellectual property from competitors. Due to these factors, we may experience substantial period-to-period fluctuations in our future operating results. Potentially, a loss of a key officer, key management, and other personnel could impair our ability to successfully execute our business strategy, particularly when these individuals have acquired specialized knowledge and skills with respect to nuclear power and our operations. Our future operations and earnings currently depend on the results of the Company’s operations outside the United States. There can be no assurance that the Company will be able to successfully continue to conduct such operations, and a failure to do so would have a material adverse effect on the Company’s research and development activities, financial position, results of operations, and cash flows. Also, the success of the Company’s operations will be subject to other numerous contingencies, some of which are beyond management’s control. These contingencies include general and regional economic conditions, competition, changes in regulations, changes in accounting and taxation standards, inability to achieve our overall long-term goals, future impairment charges and global or regional catastrophic events. Because the Company is dependent on its international operations for almost all its revenue, the Company may be subject to various additional political, economic, and other uncertainties. Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash equivalents, marketable securities and accounts receivable. Cash equivalents and marketable securities consist of money market funds and mutual bond funds held with one major financial institution with a high credit standing. The underlying fixed-income investments of the money market and bond mutual funds are either United States Treasury securities or represent a diversified portfolio of investments.
Consulting Business Segment [Policy Text Block] | Consulting Business Segment At the present time, we derive all of our revenue from our consulting and strategic advisory services business segment, by offering consulting services to governments outside the United States planning to create or expand electricity generation capabilities using nuclear power plants. Our fee structure for each client engagement is dependent on a number of variables, including the size of the client, the complexity, the level of the opportunity for us to improve the client’s electrical generation capabilities using nuclear power plants, and other factors. The accounting policy we use to recognize revenue depends on the terms and conditions of the specific contract. Revenues from the Executive Affairs Authority (“EAA”) of Abu Dhabi, one of the member Emirates of the UAE, and the related entities, ENEC and FANR, are billed and recognized on a time and expense basis. Certain customer arrangements require evaluation of the criteria outlined in the accounting standards for reporting revenue “ Gross as a Principal Versus Net as an Agent ” in determining whether it is appropriate to record the gross amount of revenue and related costs, or the net amount earned as agent fees. Generally, when we are primarily obligated in a transaction, revenue is recorded on a gross basis. Other factors that we consider in determining whether to recognize revenue on a gross versus net basis include our assumption of credit risk, latitude in establishing prices, our determination of service specifications and our involvement in the provision of services. We have determined, based on the credit risk that we bear for collecting consulting fees, travel costs and other reimbursable costs from our customers, that in 2012 and 2011 we acted as a principal, and therefore we are recognizing as revenue all travel costs and other reimbursable costs billed to our customers. Cost of consulting services includes labor, travel expenses and other related consulting costs. All costs directly related to producing work under certain consulting agreements where revenue is recognized upon acceptance of certain contractual milestones by our customer, are first capitalized as deferred project costs. Deferred project costs are then recognized or amortized to an expense captioned “cost of consulting services provided” on the accompanying consolidated statement of operations, when the revenue is recognized upon the delivery and acceptance of the defined contractual milestones or deliverables.
Technology Business Segment [Policy Text Block] | Technology Business Segment Once our nuclear fuel designs have advanced to a commercially usable stage by either a fuel fabricator or nuclear plant owner/operator, we will seek to license our technology to them or to major government contractors working for the U.S. or other governments. We expect that our revenue from these license fees will be recognized on a straight-line basis over the expected period of the related license term.
Stock-Based Compensation [Policy Text Block] | Stock-Based Compensation The stock-based compensation expense incurred by Lightbridge for employees and directors in connection with its stock option plan is based on the employee model of ASC 718, and the fair market value of the options is measured at the grant date. Under ASC 718 employee is defined as, “An individual over whom the grantor of a share-based compensation award exercises or has the right to exercise sufficient control to establish an employer-employee relationship based on common law as illustrated in case law and currently under U.S. Tax Regulations”. Our advisory board members and consultants do not meet the employer-employee relationship as defined by the IRS and therefore are accounted for under ASC 505-50. ASC 505-50-30-11 (previously EITF 96-18) further provides that an issuer shall measure the fair value of the equity instruments in these transactions using the stock price and other measurement assumptions as of the earlier of the following dates, referred to as the measurement date:
| i. | The date at which a commitment for performance by the counterparty to earn the equity instruments is reached (a performance commitment); and
| ii. | The date at which the counterparty’s performance is complete.
We have elected to use the Black-Scholes-Merton pricing model to determine the fair value of stock options on the measurement date of the grant. Restricted stock units are measured based on the fair market values of the underlying stock on the measurement date of the grant. Shares that are issued to officers on the exercise dates of their stock options may be issued net of the statutory withholding requirements to be paid by us on behalf of our employees. As a result, the actual number of shares issued will be fewer than the actual number of shares exercised under the stock option. We recognize stock-based compensation using the straight-line method. For the years ended December 31, 2012 and 2011, we recognized stock-based compensation of approximately $1.0 million and $1.5 million respectively. Related income tax benefits were not recognized, as we incurred a tax loss for both years.
Fair Value of Financial Instruments, Policy [Policy Text Block] | Fair Value of Financial Instruments The carrying amounts of our financial instruments, including cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities, approximate fair value because of their generally short maturities. We carry marketable securities at fair value.
Cash and Cash Equivalents, Restricted Cash and Marketable Securities [Policy Text Block] | Cash and Cash Equivalents, Restricted Cash and Marketable Securities We invest our excess cash in money market mutual funds, and mutual bond funds. We classify all highly liquid investments with stated maturities of three months or less from date of purchase as cash equivalents and all highly liquid investments with stated maturities of greater than three months as marketable securities. We hold cash balances in excess of the federally insured limits of $250,000 with two prominent financial institutions. We deem this credit risk not to be significant as our cash is held by major prominent financial institutions. Total cash and cash equivalents held in checking accounts and a money market core cash account, as reported on the accompanying consolidated balance sheets, totaled approximately $2.2 million and $3.6 million at December 31, 2012 and 2011, respectively. Restricted cash represents cash being held by one prominent financial institution that is being used as collateral for our corporate credit cards and future letters of credit that we may issue to some of our foreign customers. The total balance of our restricted cash at December 31, 2012 and 2011, was approximately $0.6 million. We determine the appropriate classification of our investments in marketable securities at the time of purchase and reevaluate such designation at each balance sheet date. We have classified and accounted for our marketable securities as available-for-sale, however we carry these securities at fair value (see below election made to value these financial instruments at fair market value). The fair value of substantially all securities is determined by quoted market prices.
Trade Accounts Receivable [Policy Text Block] | Trade Accounts Receivable We record accounts receivable at the invoiced amount and we do not charge interest. We review the accounts receivable by amounts due from customers which are past due, to identify specific customers with known disputes or collectability issues. In determining the amount of the reserve, we make judgments about the creditworthiness of significant customers based on ongoing credit evaluations. We will also maintain a sales allowance to reserve for potential credits issued to customers. We will determine the amount of the reserve based on historical credits issued. There was no provision for doubtful accounts recorded at December 31, 2012 and 2011, as we have not experienced any bad debt write-offs from any of our customers. Substantially all accounts receivable at December 31, 2012 and 2011, are from the FANR and ENEC contracts (see Note 3-Accounts Receivable – Project Revenue and Project Costs).
Property, Plant and Equipment [Policy Text Block] | Property, Plant and Equipment Property, plant and equipment are comprised of furniture, computers and office equipment and is stated at cost less accumulated depreciation. Depreciation of furniture, computers and office equipment is recognized over the estimated useful life of the asset, generally five years utilizing the straight line depreciation methodology. Upon disposition of assets, the related cost and accumulated depreciation are eliminated and any gain or loss is included in the statement of income. Expenditures for major improvements are capitalized. Expenses related to maintenance and repairs are recognized as the costs are incurred.
Income Taxes [Policy Text Block] | Income Taxes Income taxes are accounted for under the asset and liability method in accordance with United States generally accepted accounting principles. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial carrying amounts of existing assets and liabilities and their respective tax bases as well as operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Deferred tax assets are reduced by a valuation allowance to the extent that the recoverability of the asset is unlikely to be recognized. We did not provide any current or deferred income tax provision or benefit for any periods presented to date because we have continued to experience a net operating loss since inception and therefore provide a 100% valuation allowance against all of our deferred tax assets (see Note 8–Income Taxes).
Foreign Currency [Policy Text Block] | Foreign Currency The functional currency of our international subsidiaries and branches is the local currency. We translate the financial statements of these subsidiaries to U.S. dollars using month-end rates of exchange for assets and liabilities, and average rates of exchange for revenues, costs, and expenses. The translation gains/losses for our branch office in Russia were not significant for the years ended December 31, 2012 and 2011.
Patents and Legal Costs [Policy Text Block] | Patents and Legal Costs Patents are stated on the accompanying consolidated balance sheets at cost less accumulated amortization. The costs of the patents, once placed in service, will be amortized on a straight-line basis over their estimated useful lives or the remaining legal lives of the patents, whichever is shorter. The amortization periods for our patents can range between 17 and 20 years if placed into service at the beginning of their legal lives. Our patents have not been placed in service for the years ended December 31, 2012 and 2011. Legal costs are expensed as incurred except for legal costs to file for patent protection, which are capitalized and reported as patents on the accompanying consolidated balance sheets.
Impairment of long-lived assets [Policy Text Block] | Impairment of long-lived assets Long-lived assets of the Company are reviewed for impairment whenever events or circumstances indicate that the carrying amount of assets may not be recoverable. The Company recognizes an impairment loss when the sum of expected undiscounted future cash flows is less than the carrying amount of the asset. The amount of impairment is measured as the difference between the asset’s estimated fair value and its book value. The Company did not consider it necessary to record any impairment charges for the years ended December 31, 2012 and 2011.
Research, Development and Related Expenses [Policy Text Block] | Research, Development and Related Expenses These costs from our Technology business segment are charged to operations in the year incurred and are shown on a separate line on the accompanying Consolidated Statement of Operations. Research and development and related expenses totaled approximately $2.1 million and $2.3 million for the years ended December 31, 2012 and 2011.
Segment Reporting, Policy [Policy Text Block] | Segment Reporting We use the “management approach” in determining reportable operating segments. The management approach considers the internal organization and reporting used by our chief decision makers for making operating decisions and assessing performance, as the source for determining our reportable segments. We have determined that we have two operating segments as defined by the FASB accounting pronouncement, “ Disclosures about Segments of an Enterprise and Related Information ”. As discussed above, our two reporting business segments are our technology business and our consulting services business (See Note 12-Business Segment Results).
Commitments and Contingencies [Policy Text Block] | Commitments and Contingencies The Company follows subtopic 450-20 of the FASB Accounting Standards Codification to report accounting for contingencies. Certain conditions may exist as of the date the consolidated financial statements are issued, which may result in a loss to the Company but which will only be resolved when one or more future events occur or fail to occur. The Company assesses such contingent liabilities, and such assessment inherently involves an exercise of judgment. If the assessment of a contingency indicates that it is probable that a material loss has been incurred and the amount of the liability can be estimated, then the estimated liability would be accrued in the Company’s consolidated financial statements. If the assessment indicates that a potentially material loss contingency is not probable but is reasonably possible, or is probable but cannot be estimated, then the nature of the contingent liability, and an estimate of the range of possible losses, if determinable and material, would be disclosed. Loss contingencies considered remote are generally not disclosed unless they involve guarantees, in which case the guarantees would be disclosed. The Company’s legal costs associated with contingent liabilities are recorded to expense as incurred.
Retirement 401(K) Plan [Policy Text Block] | Retirement 401(K) Plan We have a 401(k) savings plan that was set up in 2006 covering substantially all of our employees. Eligible employees may contribute through payroll deductions. There were no Company matching contributions made to the 401(k) savings plan in 2012 and 2011.
Recent Accounting Pronouncements Recently Adopted [Policy Text Block] | Recent Accounting Pronouncements Recently Adopted In May 2011, the FASB issued ASU 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and International Financial Reporting Standards (“IFRS”). ASU 2011-04 clarifies some existing concepts, eliminates wording differences between U.S. GAAP and IFRS, and in some limited cases, changes some principles to achieve convergence between U.S. GAAP and IFRS. ASU 2011-04 results in a consistent definition of fair value and common requirements for measurement of and disclosure about fair value between U.S. GAAP and IFRS. ASU 2011-04 also expands the disclosures for fair value measurements that are estimated using significant unobservable (Level 3) inputs. ASU 2011-04 was effective for the Company beginning after December 15, 2011. The adoption of ASU 2011-04 did not have a material effect on our operating results or financial position. In September 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-08, Intangibles—Goodwill and Other (Topic 350): Testing Goodwill for Impairment. ASU 2011-08 is intended to simplify how entities, both public and nonpublic, test goodwill and other intangible assets such as patents for impairment. ASU 2011-08 permits an entity to first assess qualitative factors to determine whether it is "more likely than not" that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in Topic 350, Intangibles-Goodwill and Other. The more-likely-than-not threshold is defined as having a likelihood of more than 50%. ASU 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted, including for annual and interim goodwill impairment tests performed as of a date before September 15, 2011, if an entity’s financial statements for the most recent annual or interim period have not yet been issued or, for nonpublic entities, have not yet been made available for issuance. The adoption of ASU 2011-08 did not have a material effect on our operating results or financial position.

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