XML 33 R29.htm IDEA: XBRL DOCUMENT
v2.4.1.9

1. NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 3 Months Ended
--- | ---
Mar. 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 earnings per share |
|  | Three-Month Period Ended March 31,
|  |  | 2015 |  |  |  | 2014 |
Numerator |  |  |  |  |  |  |  |
Net income |  | $ | 5,315,271 |  |  | $ | 4,286,338 |
Denominator |  |  |  |  |  |  |  |
Basic: Weighted-average common shares outstanding during the period |  |  | 42,680,899 |  |  |  | 38,598,424 |
Add: Dilutive effect of stock options |  |  | 796,502 |  |  |  | 679,533 |
Diluted |  |  | 43,477,401 |  |  |  | 39,277,957 |
Net income per share |  |  |  |  |  |  |  |
Basic |  | $ | 0.12 |  |  | $ | 0.11 |
Diluted |  | $ | 0.12 |  |  | $ | 0.11 |

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

X
- 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