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RETAINED EARNINGS - APPROPRIATED (Details) | Sep. 30, 2012
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Shouguang City Haoyuan Chemical Company Limited [Member] |
Retained Earnings Adjustments [Line Items] |
Required to transfer profit after tax | 10.00%
Statutory Common Reserve Fund | 33.00%
Shouguang City Haoyuan Chemical Company Limited [Member] | Minimum [Member] |
Retained Earnings Adjustments [Line Items] |
Statutory Common Reserve Fund | 25.00%
Shouguang City Haoyuan Chemical Company Limited [Member] | Maximum [Member] |
Retained Earnings Adjustments [Line Items] |
Statutory Common Reserve Fund | 50.00%
Shouguang Yuxin Chemical Industry Company Limited [Member] |
Retained Earnings Adjustments [Line Items] |
Required to transfer profit after tax | 10.00%
Statutory Common Reserve Fund | 50.00%
Shouguang Yuxin Chemical Industry Company Limited [Member] | Maximum [Member] |
Retained Earnings Adjustments [Line Items] |
Statutory Common Reserve Fund | 50.00%

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- Definition Entitys Required After Tax Profits To Be Allocated To Statutory Common Reserve As Percentage Of Its Registered Capital + References No definition available. + Details
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Namespace Prefix: | gure_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Required Percentage of Entitys After Tax Profits to Allocate to Statutory Common Reserve + References No definition available. + Details
Name: | gure_RequiredPercentageOfEntitysAfterTaxProfitsToAllocateToStatutoryCommonReserve
Namespace Prefix: | gure_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_RetainedEarningsAdjustmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration