Interim Financial Statements (Policies)	6 Months Ended
Interim Financial Statements (Policies)	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Use of Estimates	Use of Estimates In preparing financial statements in conformity with generally accepted accounting principles, we are required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and revenues and expenditures during the reported periods. Actual results could differ materially from those estimates. Estimates may include those pertaining to estimated useful lives and valuation of properties, plant, and equipment, assets held for sale, mineral rights, deferred tax assets, derivative assets and liabilities, reclamation liabilities, stock-based compensation and payments, and contingent liabilities.
Income Taxes	Income Taxes We recognize deferred tax assets and liabilities based on differences between the consolidated financial statement carrying amounts and tax basis of certain recorded assets and liabilities and for tax loss carryforwards. Realization of deferred tax assets is dependent upon our ability to generate sufficient future taxable earnings. Where it is more likely than not that the deferred tax asset will not be realized, we have provided a full valuation allowance. The Company has provided a full valuation allowance at June 30, 2018 and December 31, 2017, for its net deferred tax assets because we cannot conclude it is more likely than not that they will be realized.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Updated (“ASU”) 2014-09 (Topic 606) that introduces a new five-step revenue recognition model that an entity should use to recognize revenue when depicting the transfer of promised goods or services to customers in an amount that reflects the consideration that the entity expects to be entitled in exchange for those goods or services. This ASU also requires disclosures sufficient to enable users to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers, including qualitative and quantitative disclosures about contracts with customers, significant judgments and changes in judgments, and assets recognized from the costs to obtain or fulfill a contract. We used the modified retrospective method to adopt the provisions of this standard effective January 1, 2018, which required us to apply the new revenue standard to (i) all new revenue contracts entered into after January 1, 2018 and (ii) all existing revenue contracts as of January 1, 2018, through a cumulative adjustment to accumulated deficit. In accordance with this approach, our consolidated revenues for the periods prior to January 1, 2018, were not revised. The Company did not record a cumulative effect adjustment to its beginning accumulated deficit as a result of adoption of Topic 606 as there were no revenue contracts within the scope of Topic 606 as of January 1, 2018. In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"), which amends ASC 230, Statement of Cash Flows, and the FASB’s standards for reporting cash flows in general-purpose financial statements. The amendments address the diversity in practice related to the classification of certain cash receipts and payments including debt prepayment or debt extinguishment costs. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and early adoption is permitted. The Company adopted this guidance on January 1, 2018, with no material impact on the Company’s consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. Topic 842 affects any entity that enters into a lease, with some specified scope exceptions. For public business entities, the amendments in this update are effective for financial statements issued for annual periods beginning after December 15, 2018, and interim periods within those annual periods. Early application is permitted for all entities. The Company is currently evaluating the impact of adopting this standard on its consolidated financial statements, which will require right of use assets and lease liabilities be recorded in the consolidated balance sheet for operating leases.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.