BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) (USD $)	9 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Amortization of Deferred Assets	$ 31,587,102cga_AmortizationOfDeferredAssets	$ 23,578,746cga_AmortizationOfDeferredAssets
Deferred Asset, Amortization Expense, Next Twelve Months	38,870,316
Deferred Asset, Amortization Expense, Year Two	20,237,200
Deferred Asset, Amortization Expense, Year Three	$ 2,632,925

Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for deferred assets.

No definition available.

Name:	cga_DeferredAssetAmortizationExpenseNextTwelveMonths
Namespace Prefix:	cga_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration