XML 65 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

PROPERTY, PLANT AND EQUIPMENT (Details) (USD $) | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  | 1 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2012 Uranium plant | Dec. 31, 2011 Uranium plant | Dec. 31, 2012 Permits and licenses | Dec. 31, 2011 Permits and licenses | Dec. 31, 2012 Mineral rights and properties | Dec. 31, 2011 Mineral rights and properties | Dec. 31, 2012 Evaluation and delineation | Dec. 31, 2011 Evaluation and delineation | Dec. 31, 2012 Vehicles/depreciable equipment | Dec. 31, 2011 Vehicles/depreciable equipment | Dec. 31, 2012 Other uranium properties | Dec. 31, 2011 Other uranium properties | Dec. 31, 2012 Other property, plant and equipment | Dec. 31, 2011 Other property, plant and equipment | Dec. 31, 2012 Kingsville Dome Property acre | Dec. 31, 2011 Kingsville Dome Property | Dec. 31, 2010 Kingsville Dome Property | Dec. 31, 2012 Kingsville Dome Property Minimum | Dec. 31, 2012 Kingsville Dome Property Maximum | Dec. 31, 2012 Rosita Property acre | Dec. 31, 2011 Rosita Property | Dec. 31, 2010 Rosita Property | Dec. 31, 2012 Rosita Property Minimum | Dec. 31, 2012 Rosita Property Maximum | Dec. 31, 2012 Vasquez Property acre | Dec. 31, 2011 Vasquez Property | Dec. 31, 2010 Vasquez Property | Dec. 31, 2012 Vasquez Property Minimum | Dec. 31, 2012 Vasquez Property Maximum | Dec. 31, 2012 Rosita South acre | Dec. 31, 2010 Los Finados Project item acre | May 31, 2011 Los Finados Project CTI item | May 31, 2011 Los Finados Project CTI Maximum | Dec. 31, 2012 Los Finados Project Tecolote Project acre | Dec. 31, 2010 Los Finados Project Year 1 item | Dec. 31, 2012 Los Finados Project Year 1 Tecolote Project item | Dec. 31, 2010 Los Finados Project Year 2 item | Dec. 31, 2012 Los Finados Project Year 2 Tecolote Project item | Dec. 31, 2010 Los Finados Project Year 3 item | Dec. 31, 2012 Los Finados Project Year 3 Tecolote Project item | Dec. 31, 2012 Churchrock item acre | Dec. 31, 2012 Churchrock Section 17 and Mancos | Dec. 31, 2012 Churchrock Section 17 and Mancos Minimum | Dec. 31, 2012 Churchrock Section 17 and Mancos Maximum | Dec. 31, 2012 Churchrock Section 8 Maximum | Dec. 31, 2012 Crownpoint Property acre | Dec. 31, 2012 Crownpoint Property Churchrock deposits mi | Dec. 31, 2012 Crownpoint Property Gallup, New Mexico mi | Mar. 31, 1997 West Largo and Roca Honda property acre | Dec. 31, 2012 West Largo property Milan mi | Dec. 31, 2012 West Largo property State Highway 509 in McKinley County, New Mexico mi | Dec. 31, 2012 West Largo property Ambrosia Lake District mi | Dec. 31, 2012 Roca Honda property item acre | Dec. 31, 2012 Roca Honda property San Mateo in McKinley County, New Mexico mi | Dec. 31, 2012 Juan Tafoya acre | Dec. 31, 2012 Juan Tafoya Albuquerque mi | Dec. 31, 2012 Juan Tafoya Laguna mi
PROPERTY, PLANT AND EQUIPMENT |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment Balances (net) | $ 34,739,746 | $ 13,608,172 |  | $ 9,532,000 | $ 8,971,000 | $ 174,000 | $ 496,000 | $ 20,872,000 | $ 589,000 | $ 2,022,000 | $ 2,022,000 | $ 1,435,000 | $ 776,000 | $ 247,000 | $ 661,000 | $ 458,000 | $ 93,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment provision | 1,737,359 | 1,460,170 | 961,278 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 919,000 | 851,000 | 590,000 |  |  | 139,000 | 126,000 | 58,000 |  |  | 679,000 | 483,000 | 313,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross area on which entity has mineral leases |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,434 |  |  |  |  | 3,377 |  |  |  |  | 872 |  |  |  |  | 1,795 | 53,524 |  |  |  |  |  |  |  |  |  | 3,458 |  |  |  |  | 640 |  |  |  |  |  |  |  |  |  |  |
Net area on which entity has mineral leases |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,227 |  |  |  |  | 3,377 |  |  |  |  | 872 |  |  |  |  | 1,479 |  |  |  | 22,700 |  |  |  |  |  |  | 3,458 |  |  |  |  | 556 |  |  |  |  |  |  |  |  |  |  |
Royalties on lease based upon a percentage of uranium sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.25% | 9.375% |  |  |  | 6.25% | 18.25% |  |  |  | 6.25% | 10.25% |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 6.25% | 33.00% |  |  |  |  |  |  |  |  |  |  |  |
Annual per acre royalty payable to extend leases not held by production |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 | 30 |  |  |  | 10 | 30 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Specified price per pound for uranium sales on which royalty is payable at specified percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80.00 |  |  |  |  |  |  |  | 40.00 | 25.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fee paid at signing as per lease option agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of phases in exploration program |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Extension of exploration lease term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exploration obligation, number of exploration wells |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100 | 100 | 200 | 150 | 200 | 200 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exploration obligation, amount of investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 | $ 1,000,000 | $ 1,500,000 | $ 1,500,000 | $ 2,000,000 | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest earned in project in consideration of investment (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 70.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of parcels |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of parcels which lie within the area generally recognized as constituting the Navajo Reservation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Overriding royalty obligation (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distance of property from a specified location |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22 | 35 |  | 21 | 1.5 | 3 |  | 4 |  | 45 | 25
Area of land in which fee interest acquired by entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 177,000 |  |  |  |  |  | 4,097 |  |
Number of unpatented mining claims owned by entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 36 |  |  |  |
Area of land encompassing unpatented mining claims of entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 640 |  |  |  |

X
- Definition Represents the area of land encompassing unpatented mining claims of entity. + References No definition available. + Details
Name: | urre_AreaOfLandEncompassingUnpatentedMiningClaimsOwnedByEntity
Namespace Prefix: | urre_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the area of land in which fee interest is acquired by entity. + References No definition available. + Details
Name: | urre_AreaOfLandInWhichFeeInterestAcquiredByEntity
Namespace Prefix: | urre_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the distance of mineral property from a specified location. + References No definition available. + Details
Name: | urre_DistanceOfMineralPropertyFromSpecifiedLocation
Namespace Prefix: | urre_
Data Type: | num:lengthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of investment to be made annually per the exploration obligation. + References No definition available. + Details
Name: | urre_ExplorationObligationInvestmentToBeMade
Namespace Prefix: | urre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the number of exploration wells to be explored annually per the exploration obligation. + References No definition available. + Details
Name: | urre_ExplorationObligationNumberOfWellsToBeExplored
Namespace Prefix: | urre_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the term by which the exploration lease is extended. + References No definition available. + Details
Name: | urre_ExtensionOfExplorationLeaseTerm
Namespace Prefix: | urre_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the leasehold royalty payable annually for extension of leases. + References No definition available. + Details
Name: | urre_LeaseholdAnnualRentalPayment
Namespace Prefix: | urre_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the gross area of mineral properties. + References No definition available. + Details
Name: | urre_MineralAreaGross
Namespace Prefix: | urre_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the net area of mineral properties. + References No definition available. + Details
Name: | urre_MineralAreaNet
Namespace Prefix: | urre_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of parcels comprising mineral properties of the entity. + References No definition available. + Details
Name: | urre_NumberOfParcelsComprisingMineralProperty
Namespace Prefix: | urre_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of parcels lying within the specified area. + References No definition available. + Details
Name: | urre_NumberOfParcelsLyingWithinSpecifiedArea
Namespace Prefix: | urre_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of phases in the exploration program. + References No definition available. + Details
Name: | urre_NumberOfPhasesInExplorationProgram
Namespace Prefix: | urre_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of unpatented mining claims owned by entity. + References No definition available. + Details
Name: | urre_NumberOfUnpatentedMiningClaimsOwnedByEntity
Namespace Prefix: | urre_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage interest earned based on investment in the project. + References No definition available. + Details
Name: | urre_PercentageInterestEarnedInProjectBasedOnInvestment
Namespace Prefix: | urre_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of overriding royalty obligation payable by the entity. + References No definition available. + Details
Name: | urre_PercentageOfOverridingRoyaltyObligationOfEntity
Namespace Prefix: | urre_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the royalty payable on lease as a percentage of mineral sales. + References No definition available. + Details
Name: | urre_RoyaltyOnLeaseAsPercentageOfMineralSales
Namespace Prefix: | urre_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the fees paid at signing for lease of mineral property. + References No definition available. + Details
Name: | urre_SigningFeesPaidForLeaseOfMineralProperty
Namespace Prefix: | urre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the specified price per pound for mineral sales on which royalty is payable at specified percentage. + References No definition available. + Details
Name: | urre_SpecifiedPricePerPoundForMineralSalesOnWhichRoyaltyOnLeasePayableAtSpecifiedPercentage
Namespace Prefix: | urre_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 45, 46, 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_AssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 12 -Paragraph 5 -Subparagraph b, c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant