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TAXES PAYABLE (Details Textual) (USD $)
3 Months Ended 9 Months Ended 1 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Jan. 31, 2008
Taxes Payable [Line Items]          
Income Tax Expense (Benefit) $ 2,817,281us-gaap_IncomeTaxExpenseBenefit $ 2,339,082us-gaap_IncomeTaxExpenseBenefit $ 6,372,760us-gaap_IncomeTaxExpenseBenefit $ 6,450,322us-gaap_IncomeTaxExpenseBenefit  
Value Added Tax Rate     13.00%cga_ValueAddedTaxRate    
Effective Income Tax Rate Reconciliation, Percent   23.30%us-gaap_EffectiveIncomeTaxRateContinuingOperations 21.50%us-gaap_EffectiveIncomeTaxRateContinuingOperations 23.30%us-gaap_EffectiveIncomeTaxRateContinuingOperations  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate  
Enterprise Income Tax [Member]          
Taxes Payable [Line Items]          
New Enterprise Income Tax Rate         25.00%cga_NewEnterpriseIncomeTaxRate
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember
Existing Enterprise Income Tax Rate         33.00%cga_ExistingEnterpriseIncomeTaxRate
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember
Income Tax Rate Reconciliation Tax Holidays         50.00%us-gaap_EffectiveIncomeTaxRateReconciliationTaxHolidays
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember
High Tech Income Tax Rate         15.00%cga_HighTechIncomeTaxRate
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember
Enterprise Income Tax [Member] | Jinong [Member]          
Taxes Payable [Line Items]          
Income Tax Expense (Benefit)     3,581,931us-gaap_IncomeTaxExpenseBenefit
/ dei_LegalEntityAxis
= cga_JinongMember
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember
3,698,296us-gaap_IncomeTaxExpenseBenefit
/ dei_LegalEntityAxis
= cga_JinongMember
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember
 
Enterprise Income Tax [Member] | Gufeng [Member]          
Taxes Payable [Line Items]          
Income Tax Expense (Benefit)     $ 2,790,829us-gaap_IncomeTaxExpenseBenefit
/ dei_LegalEntityAxis
= cga_GufengMember
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember
$ 2,752,026us-gaap_IncomeTaxExpenseBenefit
/ dei_LegalEntityAxis
= cga_GufengMember
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember
 
Effective Income Tax Rate Reconciliation, Percent     25.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations
/ dei_LegalEntityAxis
= cga_GufengMember
/ cga_TaxStatusAxis
= cga_EnterpriseIncomeTaxMember