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3. PREPAID LAND LEASE (Details Narrative) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 sqkm | Dec. 31, 2013 sqkm
Notes to Financial Statements |  |
Amortization of prepaid land lease | $ 680,551 us-gaap_AmortizationOfLeasedAsset | $ 660,002 us-gaap_AmortizationOfLeasedAsset
Area of land | 59.39 gure_AreaOfLandLease | 59.39 gure_AreaOfLandLease
Aggregate carrying value | $ 742,820 gure_AggregateLandLeaseCarryingValue | $ 761,496 gure_AggregateLandLeaseCarryingValue

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- Definition Custom Element. + References No definition available. + Details
Name: | gure_AggregateLandLeaseCarryingValue
Namespace Prefix: | gure_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition No authoritative reference available. + References No definition available. + Details
Name: | gure_AreaOfLandLease
Namespace Prefix: | gure_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | gure_NotesToFinancialStatementsAbstract
Namespace Prefix: | gure_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The expense charged against earnings for the periodic recognition of capitalized leases. This element may apply to energy companies that lease mineral producing properties and to other enterprises that capitalize property, plant, or equipment obtained through capital leases. + References Reference 1: 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=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45031-112735 + Details
Name: | us-gaap_AmortizationOfLeasedAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration