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

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.

No definition available.

Name:	urre_PeriodForRightsAndBenefitsEntitlementInEventOfChangeInControl
Namespace Prefix:	urre_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration