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14. BUSINESS SEGMENTS (Details 2) (Shandong Maroi Chemical Company Limited [Member], USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Revenue, Major Customer [Line Items] |  |
Revenue from major customer | $ 17,572 us-gaap_SalesRevenueNet | $ 15,031 us-gaap_SalesRevenueNet
Percentage of Total Revenue (%) | 15.50%us-gaap_ConcentrationRiskPercentage1 | 12.70%us-gaap_ConcentrationRiskPercentage1
Bromine Segment [Member] |  |
Revenue, Major Customer [Line Items] |  |
Revenue from major customer | 8,519 us-gaap_SalesRevenueNet / us-gaap_MajorCustomersAxis = gure_ShandongMaroiChemicalCompanyLimitedMember / us-gaap_StatementBusinessSegmentsAxis = gure_BromineSegmentMember | 6,955 us-gaap_SalesRevenueNet / us-gaap_MajorCustomersAxis = gure_ShandongMaroiChemicalCompanyLimitedMember / us-gaap_StatementBusinessSegmentsAxis = gure_BromineSegmentMember
Crude Salt Segment [Member] |  |
Revenue, Major Customer [Line Items] |  |
Revenue from major customer | 2,576 us-gaap_SalesRevenueNet / us-gaap_MajorCustomersAxis = gure_ShandongMaroiChemicalCompanyLimitedMember / us-gaap_StatementBusinessSegmentsAxis = gure_CrudeSaltSegmentMember | 3,520 us-gaap_SalesRevenueNet / us-gaap_MajorCustomersAxis = gure_ShandongMaroiChemicalCompanyLimitedMember / us-gaap_StatementBusinessSegmentsAxis = gure_CrudeSaltSegmentMember
Chemical Products Segment [Member] |  |
Revenue, Major Customer [Line Items] |  |
Revenue from major customer | $ 6,477 us-gaap_SalesRevenueNet / us-gaap_MajorCustomersAxis = gure_ShandongMaroiChemicalCompanyLimitedMember / us-gaap_StatementBusinessSegmentsAxis = gure_ChemicalProductsSegmentMember | $ 4,556 us-gaap_SalesRevenueNet / us-gaap_MajorCustomersAxis = gure_ShandongMaroiChemicalCompanyLimitedMember / us-gaap_StatementBusinessSegmentsAxis = gure_ChemicalProductsSegmentMember

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