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STOCKHOLDERS' EQUITY (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | 1 Months Ended |
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Sep. 12, 2012 | Jul. 28, 2014 | Mar. 31, 2012 | Dec. 31, 2012 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2012 | Jul. 24, 2013 | Jun. 01, 2013 | Jun. 14, 2012 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Aug. 09, 2012 | Mar. 08, 2012 | Sep. 26, 2013 | Sep. 26, 2012 | Sep. 28, 2012 | Sep. 30, 2012
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services | 35,041 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices |  | 5,704 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Services | $ 130,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices | $ 65,535 us-gaap_StockIssuedDuringPeriodValueIssuedForServices | $ 24,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices |  | $ 65,535 us-gaap_StockIssuedDuringPeriodValueIssuedForServices | $ 389,002 us-gaap_StockIssuedDuringPeriodValueIssuedForServices | $ 24,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares Subscribed but Unissued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 151,515 us-gaap_CommonStockSharesSubscribedButUnissued
Officers' Compensation |  |  |  | 200,000 us-gaap_OfficersCompensation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Authorized |  |  |  |  | 20,000,000 us-gaap_PreferredStockSharesAuthorized | 20,000,000 us-gaap_PreferredStockSharesAuthorized |  |  |  |  |  | 20,000,000 us-gaap_PreferredStockSharesAuthorized |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  |  | $ 0.001 us-gaap_PreferredStockParOrStatedValuePerShare | $ 0.001 us-gaap_PreferredStockParOrStatedValuePerShare |  |  |  |  |  | 0.001 us-gaap_PreferredStockParOrStatedValuePerShare |  |  |  |  |  |  |
Proceeds from Related Party Debt |  |  |  |  | 650,000 us-gaap_ProceedsFromRelatedPartyDebt | 0 us-gaap_ProceedsFromRelatedPartyDebt | 300,000 us-gaap_ProceedsFromRelatedPartyDebt |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services |  |  |  |  | 17,356 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 111,605 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 5,704 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Services |  |  |  |  | 17 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 111 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 6 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |  |  |  |  |  |  |  |  |
Equity Incentive Plan 2009 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Gross |  |  |  |  |  |  |  | 970,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member | 1,025,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member | 445,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member | 1,750,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member |  |  |  |  |  |  |  |
Common Stock, Shares Subscribed but Unissued |  |  |  |  |  |  |  |  |  | 555,000 us-gaap_CommonStockSharesSubscribedButUnissued / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  |  |  |  |  |  |  | 1,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member |  |  |  |  |  |  |  |  |
Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period |  |  |  | 100,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_TitleOfIndividualAxis = us-gaap_ChiefExecutiveOfficerMember |  |  |  |  |  |  |  | 50,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_TitleOfIndividualAxis = us-gaap_ChiefExecutiveOfficerMember | 50,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_TitleOfIndividualAxis = us-gaap_ChiefExecutiveOfficerMember |  |  |  |  |  |
Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period |  |  |  |  |  |  |  |  |  |  |  | 10,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_TitleOfIndividualAxis = us-gaap_DirectorMember | 10,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_TitleOfIndividualAxis = us-gaap_DirectorMember |  |  |  |  |  |
Mr Tao Li [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |  |
Officers' Compensation |  |  |  |  |  |  |  |  |  |  |  |  |  | 300,000 us-gaap_OfficersCompensation / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  | 325,000 us-gaap_OfficersCompensation / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 63,158 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |  |  |
Sale of Stock, Price Per Share |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.75 us-gaap_SaleOfStockPricePerShare / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 300,001 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |  |  |
Proceeds from Related Party Debt |  |  |  | 300,000 us-gaap_ProceedsFromRelatedPartyDebt / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mr Tao Li [Member] | Equity Incentive Plan 2009 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Gross |  |  |  |  |  |  |  |  |  |  | 480,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |  |  |  |  |  |  |
Mr Tao Li [Member] | Employee Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 118,778 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_EmployeeStockMember / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember | 151,515 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_EmployeeStockMember / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |
Equity Issuance, Per Share Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.42 us-gaap_EquityIssuancePerShareAmount / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_EmployeeStockMember / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember | $ 3.30 us-gaap_EquityIssuancePerShareAmount / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_EmployeeStockMember / us-gaap_TitleOfIndividualAxis = cga_MrTaoLiMember |  |
Mr Ken Ren [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_TitleOfIndividualAxis = cga_MrKenRenMember |
Mr Ken Ren [Member] | Equity Incentive Plan 2009 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Gross |  |  |  |  |  |  |  |  |  |  | 200,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member / us-gaap_TitleOfIndividualAxis = cga_MrKenRenMember |  |  |  |  |  |  |  |
Mr Yizhao Zhang [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_TitleOfIndividualAxis = cga_MrYizhaoZhangMember |
Ms Yiru Shi [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_TitleOfIndividualAxis = cga_MsYiruShiMember |
Mr Lianfu Liu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_TitleOfIndividualAxis = cga_MrLianfuLiuMember |
Two Twenty Employees [Member] | Equity Incentive Plan 2009 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Gross |  |  |  |  |  |  |  |  |  |  | 980,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross / us-gaap_PlanNameAxis = cga_EquityIncentivePlan2009Member / us-gaap_TitleOfIndividualAxis = cga_TwoTwentyEmployeesMember |  |  |  |  |  |  |  |
Consultant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services |  | 4,087 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_TitleOfIndividualAxis = cga_ConsultantMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Services |  | 12,950 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_TitleOfIndividualAxis = cga_ConsultantMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services |  | 19,665 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_TitleOfIndividualAxis = cga_LegalServicesMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Services |  | 41,494.13 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_TitleOfIndividualAxis = cga_LegalServicesMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  |  | 1,750,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 1,750,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 1,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period |  |  |  |  | 1,688,500 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 818,651 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 560,151 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options |  |  |  |  | $ 3,104,759 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Amount of common stock allocated to investors to buy shares of a new issue of common stock before they are offered to the public. When stock is sold on a subscription basis, the issuer does not initially receive the total proceeds. In general, the issuer does not issue the shares to the investor until it receives the entire proceeds. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates. + 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 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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