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CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Parenthetical) (Common Stock [Member]) | 3 Months Ended
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Sep. 30, 2013
Common Stock [Member] |
Stock Issued Shares For Repayment Of Amount Due To Related Party | 118,778

X
- Definition Number of common stock issued for repayment of amount due to related party in noncash financing activities. + References No definition available. + Details
Name: | cga_StockIssuedSharesForRepaymentOfAmountDueToRelatedParty
Namespace Prefix: | cga_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration