Book Value of Property Plant and Equipment Sold or Disposed

No definition available.

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Namespace Prefix:	gure_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

The aggregate costs related to construction and development services during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property.

+ References

+ Details

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

- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ 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=6943989&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 5

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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

- Details

Name:	us-gaap_PropertyPlantAndEquipmentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The net amount of capitalized assets classified as property, plant and equipment not otherwise defined in the taxonomy.

+ References

No definition available.

+ Details

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

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Property Plant and Equipment Net - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended				6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended			6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Buildings	Dec. 31, 2011 Buildings	Jun. 30, 2012 Buildings Minimum	Jun. 30, 2012 Buildings Maximum	Jun. 30, 2012 Property Plant and Equipment	Jun. 30, 2011 Property Plant and Equipment	Jun. 30, 2012 Property Plant and Equipment	Jun. 30, 2011 Property Plant and Equipment	Jun. 30, 2012 Property Plant and Equipment Cost of net revenue	Jun. 30, 2011 Property Plant and Equipment Cost of net revenue	Jun. 30, 2012 Property Plant and Equipment Cost of net revenue	Jun. 30, 2011 Property Plant and Equipment Cost of net revenue	Jun. 30, 2012 Property Plant and Equipment Administrative expense	Jun. 30, 2011 Property Plant and Equipment Administrative expense	Jun. 30, 2012 Property Plant and Equipment Administrative expense	Jun. 30, 2011 Property Plant and Equipment Administrative expense	Jun. 30, 2012 Extraction Wells, Transmission Channels and Ducts Second phase enhancement project	Jun. 30, 2012 Extraction Wells, Transmission Channels and Ducts Second phase enhancement project Extraction wells	Jun. 30, 2012 Extraction Wells, Transmission Channels and Ducts Second phase enhancement project Protective shells to transmission channels and ducts	Jun. 30, 2012 Extraction Wells, Transmission Channels and Ducts Second phase enhancement project Protective shells to transmission channels and ducts Minimum	Jun. 30, 2012 Extraction Wells, Transmission Channels and Ducts Second phase enhancement project Protective shells to transmission channels and ducts Maximum
Property, Plant and Equipment [Line Items]
Aggregate carrying value of buildings and salt pans with no property ownership certificates					$ 30,316,834	$ 33,108,012
Depreciation and amortization expense	5,607,425	4,120,097	11,290,588	7,468,616					5,521,178	4,027,143	11,118,099	7,375,662	5,403,370	3,830,437	10,645,703	6,805,179	117,808	196,707	472,396	570,483
Total construction cost of factory																						12,806,910	8,139,503
Estimated useful life (in years)							8 years	20 years																5 years	8 years
Net book value protective shells for transmission channels and ducts, written off																					911,995
Repair and maintenance expense	$ 0	$ 38,457	$ 127	$ 89,090