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RESTRICTED NET ASSETS (Details Textual) (USD $) | 12 Months Ended
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Jun. 30, 2012
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries | $ 229,383,600
Subsidiaries Excess Net Assets As Percentage Of Companies Consolidated Net Assets | 25.00%

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- Definition The subsidiaries net assets as percentage of companies consolidated net assets. + References No definition available. + Details
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Namespace Prefix: | cga_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e)(3)(ii)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph e -Subparagraph 3 -Article 4 + Details
Name: | us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant