Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Operating Expenses:
Mineral property expenses	$ (809)URRE_MineralPropertyExpenses	$ (880)URRE_MineralPropertyExpenses
General and administrative	(2,095)us-gaap_GeneralAndAdministrativeExpense	(2,642)us-gaap_GeneralAndAdministrativeExpense
Accretion of asset retirement obligations	(112)	(79)
Depreciation and amortization	(85)	(101)
Total operating expenses	(3,101)us-gaap_OperatingExpenses	(3,702)us-gaap_OperatingExpenses
Non-Operating Income/(Expenses):
Gain on derivatives		654us-gaap_GainLossOnSaleOfDerivatives
Interest expense	(675)us-gaap_InterestExpense	(414)us-gaap_InterestExpense
Other income, net	15us-gaap_OtherIncome	2us-gaap_OtherIncome
Total other income/(expense)	(660)us-gaap_NonoperatingIncomeExpense	242us-gaap_NonoperatingIncomeExpense
Net Loss	$ (3,761)us-gaap_NetIncomeLoss	$ (3,460)us-gaap_NetIncomeLoss
BASIC AND DILUTED LOSS PER SHARE	$ (0.14)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.15)us-gaap_EarningsPerShareBasicAndDiluted
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING	26,555,432	22,358,558

Amount of mineral property expenses incurred during the reporting period.

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Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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