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v2.4.1.9

Commitments and Contingencies (Details Narrative) | 1 Months Ended | 12 Months Ended | 1 Months Ended
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Jul. 31, 2013 | Dec. 31, 2014 lb | Jul. 31, 2014
Business acquisition purchase price description |  | The purchase price will be based on published market prices at the time of delivery subject to a five percent discount when the market price is $56.50 per pound of U3O8 or less, or seven percent when greater than $56.50 per pound. |
Market price on sales contracts, per pound | 56.50 |  |
Sale of contracts |  | 3,000,000URRE_ContractsQuantityRequiredInSales |
Percentage of average spot price | 4.00%URRE_AverageSpotPricePercentage |  |
Minimum [Member] |  |  |
Percentage on published market prices | 5.00%URRE_PercentageOfPublishedMarketPrices / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Maximum [Member] |  |  |
Purchase on contracts | 3,000,000URRE_QuantityRequiredOnSalesContracts / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Percentage on published market prices | 7.00%URRE_PercentageOfPublishedMarketPrices / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Itochu Corporation [Member] |  |  |
Acquisition amount on sales contracts |  | 510,000URRE_AcquisitionOnSalesContractsInQuantity / us-gaap_BusinessAcquisitionAxis = URRE_ItochuCorporationMember |
U.S.A Inc [Member] |  |  |
Acquisition amount on sales contracts |  | 480,000URRE_AcquisitionOnSalesContractsInQuantity / us-gaap_BusinessAcquisitionAxis = URRE_UsaIncMember |
Texas Properties [Member] |  |  |
Contract price of sales contracts, per pound |  |  | 6
Sale of contracts |  | 600,000URRE_ContractsQuantityRequiredInSales / us-gaap_BusinessAcquisitionAxis = URRE_TexasPropertiesMember |

X
- Definition Acquisition on sales contracts in quantity. + References No definition available. + Details
Name: | URRE_AcquisitionOnSalesContractsInQuantity
Namespace Prefix: | URRE_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of average spot price. + References No definition available. + Details
Name: | URRE_AverageSpotPricePercentage
Namespace Prefix: | URRE_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contract price of sales contracts, per pound. + References No definition available. + Details
Name: | URRE_ContractPriceOfSaleContracts
Namespace Prefix: | URRE_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Contracts quantity required in sales. + References No definition available. + Details
Name: | URRE_ContractsQuantityRequiredInSales
Namespace Prefix: | URRE_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | duration

X
- Definition Market price on sales contracts, per pound. + References No definition available. + Details
Name: | URRE_MarketPriceOnSalesContracts
Namespace Prefix: | URRE_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of published market prices. + References No definition available. + Details
Name: | URRE_PercentageOfPublishedMarketPrices
Namespace Prefix: | URRE_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Quantity required on sales contracts. + References No definition available. + Details
Name: | URRE_QuantityRequiredOnSalesContracts
Namespace Prefix: | URRE_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | duration

X
- Definition In the year of acquisition, if the assets of the acquired institution exceed 10 percent of the consolidated assets at the end of the most recent period, describes the amounts of discounts and premiums for fair market value adjustments, methods of amortization (accretion), and estimated remaining lives. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionsPurchasePriceAllocationYearOfAcquisitionDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=URRE_ItochuCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=URRE_TexasPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=URRE_UsaIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |