BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) (USD $)	6 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Amortization of Deferred Assets	$ 20,982,516cga_AmortizationOfDeferredAssets	$ 13,390,648cga_AmortizationOfDeferredAssets
Deferred Asset, Amortization Expense, Next Twelve Months	42,727,492
Deferred Asset, Amortization Expense, Year Two	26,470,125
Deferred Asset, Amortization Expense, Year Three	$ 2,870,013

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