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Inventories (Details Textual) | 12 Months Ended
--- | ---
Jun. 30, 2017 USD ($)
Inventories (Textual) |
Nonmonetary transactions | $ 58,205,442

X
- References No definition available. + Details
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Namespace Prefix: | cga_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Nonmontary sales and purchases. + References No definition available. + Details
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Namespace Prefix: | cga_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration