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Federal Income Taxes (Details Narrative) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014
Increase in valuation allowance | $ 3,891us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Percentage of valuation allowance recorded against the net deferred tax assets | 100.00%URRE_PercentageOfValuationAllowanceRecordedAgainstNetDeferredTaxAssets
Net operating loss carryforwards | 206,364us-gaap_OperatingLossCarryforwards
Neutron Energy Inc [Member] |
Net operating loss carryforwards | $ 32,826us-gaap_OperatingLossCarryforwards / us-gaap_BusinessAcquisitionAxis = URRE_NeutronEnergyIncMember
Minimum [Member] |
Operating loss carryforwards expiration year | 2018
Maximum [Member] |
Operating loss carryforwards expiration year | 2034

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318 + Details
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