1. Summary of Significant Accounting Policies and Business Operations | 1. Summary of Significant Accounting Policies and Business Operations Business Operations Thunder Mountain Gold, Inc. (Thunder Mountain, THMG, or the Company) was originally incorporated under the laws of the State of Idaho on November 9, 1935, under the name of Montgomery Mines, Inc. In April 1978, the Montgomery Mines Corporation was obtained by a group of the Thunder Mountain property holders and changed its name to Thunder Mountain Gold, Inc., with the primary goal to further develop their holdings in the Thunder Mountain Mining District, located in Valley County, Idaho. Thunder Mountain Gold, Inc. takes its name from the Thunder Mountain Mining District, where its principal lode mining claims were located. For several years, the Companys activities were restricted to maintaining its property position and exploration activities. During 2005, the Company sold its holdings in the Thunder Mountain Mining District. During 2007, the Company acquired the South Mountain Mines property in southwest Idaho and initiated exploration activities on that property, which continue today. Basis of Presentation and Going Concern These unaudited interim consolidated financial statements have been prepared by the management of the Company in accordance with accounting principles generally accepted in the United States of America for interim financial information. Accordingly, they do not include all the information and footnotes required by generally accepted accounting principles for complete consolidated financial statements. In the opinion of the Companys management, all adjustments (consisting of only normal recurring accruals) considered necessary for a fair presentation of the interim consolidated financial statements have been included. The preparation of financial statements in accordance with accounting principles generally accepted in the United States of America requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities known to exist as of the date the financial statements are published, and the reported amounts of revenues and expenses during the reporting period. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of the Company's financial statements; accordingly, it is possible that the actual results could differ from these estimates and assumptions, which could have a material effect on the reported amounts of the Company's financial position and results of operations. Operating results for the nine months ended September 30, 2019 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2019. For further information refer to the financial statements and footnotes thereto in the Companys audited financial statements for the year ended December 31, 2018 as filed with the Securities and Exchange Commission. The accompanying consolidated financial statements have been prepared under the assumption that the Company will continue as a going concern. The Company has historically incurred losses, however, under the BeMetals Option Agreement (Note 3), the Company now has a recurring source of revenue, and its ability to continue as a going concern is no longer just dependent on equity capital raises and borrowings. The Company continues to have the ability to raise capital in order to fund its future exploration and working capital requirements. The Companys plans for the long-term continuation as a going concern include financing the Companys future operations through sales of its common stock and/or debt and the eventual profitable exploitation of its mining properties. On February 27, 2019, the Company entered into an Option Agreement, (the BeMetals Option Agreement) with BeMetals Corp. Under the terms of the BeMetals Option Agreement, BMET USA will be entitled to purchase 100% of the issued and outstanding shares of South Mountain Mines, Inc. (SMMI) from Thunder Mountain Resources, Inc. (TMRI), both wholly owned subsidiaries of the Company. The term of the agreement is for two years with BeMetals completing a preliminary economic assessment ("PEA") completed by a mutually agreed third-party engineering firm. Over its term, this agreement requires cash payments to the Company of $1,350,000; $1,100,000 in cash and $250,000 in exchange for shares of the Companys common stock. Through September 30, 2019, cash proceeds of $100,000 and $250,000 in exchange for shares of the Companys common stock have been received by the Company. In the event that BeMetals decides not to proceed with the South Mountain Project, BeMetals will not be obligated to make any additional payments. See Note 3 for further information. Principles of Consolidation The consolidated financial statements include the accounts of the Company; its wholly owned subsidiaries, Thunder Mountain Resources, Inc. (TMRI) and South Mountain Mines, Inc. (SMMI); and a company in which the Company owns 75% and has majority control, Owyhee Gold Trust, LLC (OGT). The Companys consolidated financial statements reflect the other investors 25% non-controlling, capped interest in OGT. Intercompany accounts are eliminated in consolidation. Accounting Estimates 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 disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions include the carrying value of properties and mineral interests, environmental remediation liabilities, deferred tax assets, and stock-based compensation. Managements estimates and assumptions are based on historical experience and other assumptions believed to be reasonable under the circumstances. Actual results could differ from those estimates. Revenue Recognition Management service revenue is recognized when the Company has satisfied its performance obligation required under its management contract. Such obligation is satisfied over time as work is performed and the Company has a contractual right to payment. Income Taxes The Company recognizes deferred income tax liabilities or assets at the end of each period using the tax rate expected to be in effect when the taxes are actually paid or recovered. A valuation allowance is recognized on deferred tax assets when it is more likely than not that some or all of the deferred tax assets will not be realized. Fair Value Measurements When required to measure assets or liabilities at fair value, the Company uses a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used. The Company determines the level within the fair value hierarchy in which the fair value measurements in their entirety fall. The categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Level 1 uses quoted prices in active markets for identical assets or liabilities, Level 2 uses significant other observable inputs, and Level 3 uses significant unobservable inputs. The amount of the total gains or losses for the period are included in earnings that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date. At September 30, 2019, the Company has one financial asset, investment in equity security, that is adjusted to fair value on a recurring basis for which the fair value is determined based on Level 1 inputs as the equity security is traded on a stock exchange. The Company has no financial liabilities that are adjusted to fair value on a recurring basis. Financial Instruments The Companys financial instruments include cash and cash equivalents, investment in equity security and related party notes payable the carrying value of which approximates fair value based on the nature of those instruments. Investments The Company determines the appropriate classification of investments at the time of acquisition and re-evaluate such determinations at each reporting date. Equity securities determined to be marketable are carried at fair value determined using Level 1 fair value measurement inputs with the change in fair value recognized in the Consolidated Statement of Operations each reporting period. Mineral Interests The Company capitalizes costs for acquiring mineral interests, and expenses costs to maintain mineral rights and leases as incurred. Exploration costs are expensed in the period in which they occur. Should a property reach the production stage, these capitalized costs would be amortized using the units-of-production method based on periodic estimates of ore reserves. Mineral properties are periodically assessed for impairment of value and any subsequent losses are charged to operations at the time of impairment. If a property is abandoned or sold, its capitalized costs are charged to operations. Investments in Joint Venture The Companys accounting policy for joint ventures is as follows: 1. The Company uses the cost method when it does not have joint control or significant influence in a joint venture. Under the cost method, these investments are carried at cost. If other than temporary impairment in value is determined, it would then be charged to current net income or loss. 2. If the Company enters into a joint venture in which there is joint control between the parties or the Company has significant influence, the equity method is utilized whereby the Companys share of the ventures earnings and losses is included in the statement of operations as earnings in joint ventures and its investments therein are adjusted by a similar amount. If other than temporary impairment in value is determined, it would then be charged to current net income or loss. 3. In a joint venture where the Company holds more than 50% of the voting interest and has significant influence, the joint venture is typically consolidated with the presentation of non-controlling interest. In determining whether significant influences exist, the Company considers its participation in policy-making decisions and its representation on the ventures management committee. See Note 3 regarding the Companys investment in Owyhee Gold Trust, LLC. Reclamation and Remediation The Companys operations have been, and are subject to, standards for mine reclamation that have been established by various governmental agencies. The Company would record the fair value of an asset retirement obligation as a liability in the period in which the Company incurred a legal obligation for the retirement of tangible long-lived assets. A corresponding asset would also be recorded and depreciated over the life of the asset. After the initial measurement of the asset retirement obligation, the liability is adjusted at the end of each reporting period to reflect changes in the estimated future cash flows underlying the obligation. Determination of any amounts recognized upon adoption is based upon numerous estimates and assumptions, including future retirement costs, future inflation rates and the credit-adjusted risk-free interest rates. For non-operating properties, the Company accrues costs associated with environmental remediation obligations when it is probable that such costs will be incurred, and they are reasonably estimable. Such costs are based on managements estimate of amounts expected to be incurred when the remediation work is performed. Share-Based Compensation Share-based payments to employees and directors, including grants of employee stock options, are measured at fair value and expensed in the statement of operations over the vesting period. Recent Accounting Pronouncements Accounting Standards Updates Adopted In February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-02 Leases (Topic 842). The update modified the classification criteria and requires lessees to recognize the assets and liabilities on the balance sheet for most leases. The update was effective for fiscal years beginning after December 15, 2018, with early adoption permitted. Adoption of this update as of January 1, 2019 did not have a material impact on the Companys consolidated financial statements. In June 2018, the FASB issued ASU No. 2018-07 Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. The update involves simplification of several aspects of accounting for nonemployee share-based payment transactions by expanding the scope of Topic 718 to include nonemployee awards. The update was effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, with early adoption permitted. Adoption of this update as of January 1, 2019 did not have a material impact on the Companys consolidated financial statements. Accounting Standards Updates to Become Effective in Future Periods In August 2018, the FASB issued ASU No. 2018-13 Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. The update removes, modifies and makes additions to the disclosure requirements on fair value measurements. The update is effective for fiscal years beginning after December 15, 2019, with early adoption permitted. Management is evaluating the impact of this update on the Companys fair value measurement disclosures. Net Income (Loss) Per Share The Company is required to have dual presentation of basic earnings per share (EPS) and diluted EPS. Basic EPS is computed as net income (loss) divided by the weighted average number of common shares outstanding for the periods. Diluted EPS is calculated based on the weighted average number of common shares outstanding during the period plus the effect of potentially dilutive common stock equivalents, including options and warrants to purchase the Companys common stock. The potential dilutive common stock equivalents for each period are as follows: 2019 2018 For Quarter and Nine Months ended September 30, Stock options 5,035,000 3,710,000 Warrants - 1,275,000 Total possible dilution 5,035,000 4,985,000 As of September 30, 2019, stock options were excluded from the calculation of diluted earnings per share because the options exercise prices were not lower than the average share price during the periods. As of September 30, 2018, potentially dilutive common stock equivalents are not included in the calculation of diluted earnings per share as their effect would have been anti-dilutive. |