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Acquisitions and Disposels - Schedule of Fair Value of Purchase Consideration (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Total Consideration Received	$ 4,916
Cash [Member]
Total Consideration Received	2,500
Energy Fuels Inc Common Stock [Member]
Total Consideration Received	293
Churchrock Properties [Member]
Total Consideration Received	$ 2,123
Lance Royalty [Member]
Total Consideration Received

X

- Definition

Amount of asset recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6411-128476

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=us-gaap_CashMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=URRE_EnergyFuelsIncCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=URRE_ChurchrockPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=URRE_LanceRoyaltyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: