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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
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 35,041us-gaap_StockIssuedDuringPeriodSharesIssuedForServices   5,704us-gaap_StockIssuedDuringPeriodSharesIssuedForServices                                
Stock Issued During Period, Value, Issued for Services $ 130,000us-gaap_StockIssuedDuringPeriodValueIssuedForServices $ 65,535us-gaap_StockIssuedDuringPeriodValueIssuedForServices $ 24,000us-gaap_StockIssuedDuringPeriodValueIssuedForServices   $ 65,535us-gaap_StockIssuedDuringPeriodValueIssuedForServices $ 389,002us-gaap_StockIssuedDuringPeriodValueIssuedForServices $ 24,000us-gaap_StockIssuedDuringPeriodValueIssuedForServices                        
Common Stock, Shares Subscribed but Unissued                                     151,515us-gaap_CommonStockSharesSubscribedButUnissued
Officers' Compensation       200,000us-gaap_OfficersCompensation                              
Preferred Stock, Shares Authorized         20,000,000us-gaap_PreferredStockSharesAuthorized 20,000,000us-gaap_PreferredStockSharesAuthorized           20,000,000us-gaap_PreferredStockSharesAuthorized              
Preferred Stock, Par or Stated Value Per Share (in dollars per share)         $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare           0.001us-gaap_PreferredStockParOrStatedValuePerShare              
Proceeds from Related Party Debt         650,000us-gaap_ProceedsFromRelatedPartyDebt 0us-gaap_ProceedsFromRelatedPartyDebt 300,000us-gaap_ProceedsFromRelatedPartyDebt                        
Common Stock [Member]                                      
Stockholders Equity [Line Items]                                      
Stock Issued During Period, Shares, Issued for Services         17,356us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
111,605us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
5,704us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
                       
Stock Issued During Period, Value, Issued for Services         17us-gaap_StockIssuedDuringPeriodValueIssuedForServices
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
111us-gaap_StockIssuedDuringPeriodValueIssuedForServices
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
6us-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               970,000us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_PlanNameAxis
= cga_EquityIncentivePlan2009Member
1,025,000us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_PlanNameAxis
= cga_EquityIncentivePlan2009Member
445,000us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_PlanNameAxis
= cga_EquityIncentivePlan2009Member
1,750,000us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
/ us-gaap_PlanNameAxis
= cga_EquityIncentivePlan2009Member
               
Common Stock, Shares Subscribed but Unissued                   555,000us-gaap_CommonStockSharesSubscribedButUnissued
/ us-gaap_PlanNameAxis
= cga_EquityIncentivePlan2009Member
                 
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                   1,000,000us-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       100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
              50,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_TitleOfIndividualAxis
= us-gaap_ChiefExecutiveOfficerMember
50,000us-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                       10,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember
10,000us-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                               200,000us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
     
Officers' Compensation                           300,000us-gaap_OfficersCompensation
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
  325,000us-gaap_OfficersCompensation
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
     
Stock Issued During Period, Shares, New Issues                             63,158us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
       
Sale of Stock, Price Per Share                             $ 4.75us-gaap_SaleOfStockPricePerShare
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
       
Stock Issued During Period, Value, New Issues                             300,001us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
       
Proceeds from Related Party Debt       300,000us-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                     480,000us-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                               118,778us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
151,515us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
   
Equity Issuance, Per Share Amount                               $ 4.42us-gaap_EquityIssuancePerShareAmount
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_EmployeeStockMember
/ us-gaap_TitleOfIndividualAxis
= cga_MrTaoLiMember
$ 3.30us-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                                   200,000us-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                     200,000us-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                                   40,000us-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                                   30,000us-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                                   20,000us-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                     980,000us-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   4,087us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_TitleOfIndividualAxis
= cga_ConsultantMember
                                 
Stock Issued During Period, Value, Issued for Services   12,950us-gaap_StockIssuedDuringPeriodValueIssuedForServices
/ us-gaap_TitleOfIndividualAxis
= cga_ConsultantMember
                                 
Legal Services [Member]                                      
Stockholders Equity [Line Items]                                      
Stock Issued During Period, Shares, Issued for Services   19,665us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
/ us-gaap_TitleOfIndividualAxis
= cga_LegalServicesMember
                                 
Stock Issued During Period, Value, Issued for Services   41,494.13us-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         1,750,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
1,750,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
1,000,000us-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         1,688,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
818,651us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
560,151us-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         $ 3,104,759us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember