XML 41 R27.htm IDEA: XBRL DOCUMENT
v3.3.1.900

1. NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Accounting Policies [Abstract] |
Schedule of property plant and equipment useful life |
| Useful life (in years)
Buildings (including salt pans) | 8 - 20
Plant and machinery (including protective shells, transmission channels and ducts) | 3 - 8
Motor vehicles | 5
Furniture, fixtures and equipment | 3 - 8
Schedule of computation of basic and diluted earnings per share |
|  | Years ended December 31, |
|  | 2015 |  | 2014 |
Numerator |  |  |  |  |  |  |
Net income |  | $ | 34,068,037 |  |  | $ | 17,871,795 |  |
Denominator |  |  |  |  |  |  |  |  |
Basic: Weighted-average common shares outstanding during the year |  |  | 45,167,288 |  |  |  | 38,694,567 |  |
Add: Dilutive effect of stock options |  |  | 942,116 |  |  |  | 566,060 |  |
Diluted |  |  | 46,109,404 |  |  |  | 39,260,627 |  |
Net income per share |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.75 |  |  | $ | 0.46 |  |
Diluted |  | $ | 0.74 |  |  | $ | 0.46 |  |

X
- Definition Custom Element. + References No definition available. + Details
Name: | gure_ScheduleOfPropertyPlantAndEquipmentServiceLifeTableTextblock
Namespace Prefix: | gure_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration