XML 85 R57.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Federal Income Taxes - Schedule of Valuation Allowance by Tax Jurisdiction (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Total valuation allowance | $ 101,523 | $ 96,203
United States [Member] |  |
Total valuation allowance | 92,448 | 87,304
Australia [Member] |  |
Total valuation allowance | 11,113 | 11,066
Turkey [Member] |  |
Total valuation allowance | $ (2,038) | $ (2,167)

X
- Definition Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e31917-109318 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e31928-109318 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowanceNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementGeographicalAxis=URRE_UnitedStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=URRE_AustraliaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=URRE_TurkeyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |