BASIS OF PRESENTATION (Policies)	9 Months Ended
BASIS OF PRESENTATION (Policies)	Sep. 30, 2016
Accounting Policies [Abstract]
Basis of Accounting	The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“US GAAP”) and are presented in thousands of US dollars (“USD”) except per share amounts. The functional currency of Energy Fuels, Inc. is the Canadian dollar. Certain footnote disclosures have share prices which are presented in Canadian dollars (“Cdn$”). The interim consolidated financial statements included herein have been prepared by the Company, without audit, pursuant to the rules and regulations of the SEC. Certain information and note disclosures normally included in financial statements prepared in accordance with US GAAP have been condensed or omitted pursuant to such rules and regulations, although the Company believes that the disclosures included are adequate to make the information presented not misleading. In management’s opinion, these unaudited interim financial statements reflect all adjustments, consisting solely of normal recurring items, which are necessary for the fair presentation of the Company’s financial position, results of operations and cash flows on a basis consistent with that of the Company’s audited consolidated financial statements for the year ended December 31, 2015. However, the results of operations for the interim periods may not be indicative of results to be expected for the full fiscal year. Therefore these unaudited interim financial statements should be read in conjunction with the audited financial statements and notes thereto and summary of significant accounting policies included in the Company’s annual report on Form 10-K for the year ended December 31, 2015. The consolidated financial statements include the accounts of the Company and its subsidiaries. All inter-company accounts and transactions have been eliminated.
Recently Adopted and Issued Accounting Pronouncements	Recently Adopted Accounting Pronouncements Fair value measurement In May 2015, ASU No. 2015-07 was issued related to investments for which fair value is measured, or are eligible to be measured, using the net asset value per share practical expedient. This update removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. The amendment also removes certain disclosure requirements for these investments. This update was effective in fiscal years, including interim periods, beginning after December 15, 2015. Adoption of this guidance effective January 1, 2016 had no impact on the Consolidated Financial Statements. Debt issuance costs In April 2015, ASU No. 2015-03 was issued related to debt issuance costs. This update simplifies the presentation of debt issuance costs by requiring debt issuance costs to be presented as a deduction from the corresponding debt liability. The update was effective in fiscal years, including interim periods, beginning after December 15, 2015. Adoption of this guidance effective January 1, 2016 had no impact on the Consolidated Financial Statements. Consolidations In February 2015, ASU No. 2015-02 was issued related to consolidations. This update makes some targeted changes to current consolidation guidance and impacts both the voting and the variable interest consolidation models. In particular, the update changes how companies determine whether limited partnerships or similar entities are variable interest entities. The update was effective in fiscal years, including interim periods, beginning after December 15, 2015. The adoption of this guidance effective January 1, 2016 had no impact on the Consolidated Financial Statements or disclosures. Recently Issued Accounting Pronouncements not yet adopted In addition to the new and revised standards and amendments issued prior to 2016 for which the Company is evaluating implementation effects, as disclosed in our annual Consolidated financial statements, the FASB issued the following new and revised standards and amendments, which are not yet effective which may have future applicability to the Company: Investments In January 2016, ASU No. 2016-01 was issued related to financial instruments. The new guidance requires entities to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. This new guidance also updates certain disclosure requirements for these investments. This update is effective in fiscal years, including interim periods, beginning after December 15, 2017, and early adoption is not permitted. The Company is currently evaluating this guidance and the impact it will have on the financial statements. Leases In February 2016, the FASB issued ASU 2016-02 which core principle is that a lessee should recognize the assets and the liabilities that arise from leases, including operating leases. Under the new requirements, a lessee will recognize in the balance sheet a liability to make lease payments (the lease liability) and the right-of-use asset representing the right to the underlying asset for the lease term. For leases with a term of twelve months or less, the lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from the previous GAAP. The standard is effective for fiscal years beginning after December 15, 2018, including interim periods within such fiscal year, with early adoption permitted. The ASU requires a modified retrospective transition method with the option to elect a package of practical expedients. The Company is evaluating the effect of this amendment and the impact it will have on the Company’s financial statements. Going Concern In August 2014, ASU 2014-15 guidance was issued which provides guidance about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. The amendments require management to assess an entity’s ability to continue as a going concern by incorporating and expanding upon certain principles that are currently in US auditing standards. Specifically, the amendments (1) provide a definition of the term substantial doubt, (2) require an evaluation every reporting period including interim periods, (3) provide principles for considering the mitigating effect of management’s plans, (4) require certain disclosures when substantial doubt is alleviated as a result of consideration of management’s plans, (5) require an express statement and other disclosures when substantial doubt is not alleviated, and (6) require an assessment for a period of one year after the date that the financial statements are issued (or available to be issued). The amendments in this update shall be effective for annual periods ending after December 15, 2016, and interim periods within annual periods beginning after December 15, 2016, with early application permitted. The Company is currently evaluating this guidance and the impact on the Company’s financial statements. Financial instruments In January 2016, ASU 2016-01 was issued related to financial instruments. The update intends to enhance the reporting model for financial instruments to provide users of financial instruments with more decision-useful information and addresses certain aspects of the recognition, measurement, presentation, and disclosure of financial instruments. The update is effective in fiscal years, including interim periods beginning on or after December 15, 2017. The Company is currently evaluating this guidance and the impact it will have on the financial statements.