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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net income | $ 17,871,795 us-gaap_NetIncomeLoss | $ 20,967,358 us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Interest on capital lease obligation | 202,656 us-gaap_AmortizationOfFinancingCosts | 207,393 us-gaap_AmortizationOfFinancingCosts
Amortization of prepaid land leases | 680,551 us-gaap_AmortizationOfLeasedAsset | 660,002 us-gaap_AmortizationOfLeasedAsset
Depreciation and amortization | 27,642,222 us-gaap_DepreciationAndAmortization | 27,460,693 us-gaap_DepreciationAndAmortization
Allowance for obsolete and slow-moving inventories | (3,174)us-gaap_InventoryWriteDown | (21,265)us-gaap_InventoryWriteDown
Write-off / Impairment loss on property, plant and equipment | 673,705 us-gaap_PropertyPlantAndEquipmentTransfersAndChanges | 27,964 us-gaap_PropertyPlantAndEquipmentTransfersAndChanges
Loss from disposal of property, plant and equipment | 9,866 us-gaap_GainLossOnDispositionOfAssets | 0 us-gaap_GainLossOnDispositionOfAssets
Gain on relocation of factory | 0 us-gaap_GainLossOnSaleOfOtherAssets | (2,501,336)us-gaap_GainLossOnSaleOfOtherAssets
Demolition expenditure net off against gain on relocation of factory | 0 gure_DemolitionExpenditureNetOffAgainstGainOnRelocationOfFactory | (1,059,965)gure_DemolitionExpenditureNetOffAgainstGainOnRelocationOfFactory
Currency translation adjustment on inter-company balances | (92,412)us-gaap_ForeignCurrencyTransactionGainLossUnrealized | 774,405 us-gaap_ForeignCurrencyTransactionGainLossUnrealized
Deferred tax asset | (121,436)us-gaap_DeferredIncomeTaxExpenseBenefit | 5,502 us-gaap_DeferredIncomeTaxExpenseBenefit
Stock-based compensation expense | 346,100 us-gaap_ShareBasedCompensation | 544,900 us-gaap_ShareBasedCompensation
Changes in assets and liabilities: |  |
Accounts receivable | 2,751,676 us-gaap_IncreaseDecreaseInAccountsReceivable | (7,777,332)us-gaap_IncreaseDecreaseInAccountsReceivable
Inventories | (84,777)us-gaap_IncreaseDecreaseInInventories | 879,952 us-gaap_IncreaseDecreaseInInventories
Prepayment and deposits | (80,673)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | (4,583)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Accounts payable and accrued expenses | (1,616,195)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities | (1,057,016)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
Retention payable | 117,905 us-gaap_IncreaseDecreaseInRetainagePayable | (1,233,988)us-gaap_IncreaseDecreaseInRetainagePayable
Other receivables | (38,272)us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables | 18,000 us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables
Taxes payable | (1,685,760)us-gaap_IncreaseDecreaseInAccruedTaxesPayable | 2,260,588 us-gaap_IncreaseDecreaseInAccruedTaxesPayable
Net cash provided by operating activities | 46,573,777 us-gaap_NetCashProvidedByUsedInOperatingActivities | 40,151,272 us-gaap_NetCashProvidedByUsedInOperatingActivities
CASH FLOWS FROM INVESTING ACTIVITIES |  |
Additions of prepaid land leases | (664,106)us-gaap_PaymentsToAcquireOtherProductiveAssets | (638,076)us-gaap_PaymentsToAcquireOtherProductiveAssets
Proceeds from sales of property, plant and equipment | 21,514 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 143 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Purchase of property, plant and equipment | (6,538,611)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (3,192,681)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Compensation proceeds received |  | 3,868,483 gure_ProceedsCompensationReceived
Net cash provided by (used in) investing activities | (7,181,203)us-gaap_NetCashProvidedByUsedInInvestingActivities | 37,869 us-gaap_NetCashProvidedByUsedInInvestingActivities
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Repurchase of common stock | (61,728)us-gaap_PaymentsForRepurchaseOfCommonStock |
Repayment of capital lease obligation | (304,806)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations | (302,497)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
Net cash used in financing activities | (366,534)us-gaap_NetCashProvidedByUsedInFinancingActivities | (302,497)us-gaap_NetCashProvidedByUsedInFinancingActivities
EFFECTS OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | (269,239)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 2,701,121 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
NET INCREASE IN CASH AND CASH EQUIVALENTS | 38,756,801 us-gaap_CashPeriodIncreaseDecrease | 42,587,765 us-gaap_CashPeriodIncreaseDecrease
CASH AND CASH EQUIVALENTS - BEGINNING OF YEAR | 107,828,800 us-gaap_Cash | 65,241,035 us-gaap_Cash
CASH AND CASH EQUIVALENTS - END OF YEAR | 146,585,601 us-gaap_Cash | 107,828,800 us-gaap_Cash
Cash paid during the period for: |  |
Income taxes | 7,604,071 us-gaap_IncomeTaxesPaid | 5,605,116 us-gaap_IncomeTaxesPaid
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES |  |
Issuance of common stock upon cashless exercise of options | $ 73 us-gaap_StockIssuedDuringPeriodValueOther | $ 107 us-gaap_StockIssuedDuringPeriodValueOther

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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.19) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.18) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.22) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow for acquisition of or capital improvements on other tangible or intangible assets not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition Amount of reclassification, impairment, donation, or other change to long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
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- Definition The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + 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 (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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