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COMMITMENTS AND CONTINGENCIES (Details) (Other officers) | 12 Months Ended
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Dec. 31, 2012
Other officers |
Compensation Agreements |
Period to receive certain rights and benefits in the event of change in control | 24 months

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- Details
Name: | urre_CompensationAgreementsLineItems
Namespace Prefix: | urre_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the period during which an individual is entitled to receive certain rights and benefits in the event of a change in control of the entity. + References No definition available. + Details
Name: | urre_PeriodForRightsAndBenefitsEntitlementInEventOfChangeInControl
Namespace Prefix: | urre_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration