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Business Combinations (Details 1) - USD ($) | Nov. 30, 2017 | Jan. 01, 2017 | Jun. 30, 2016
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Cash |  | $ 1,201,888 |
Convertible notes |  | 1,559,350 |
Derivative liability |  | 3,549 |
Total Payback |  | $ 2,764,787 |
Variable Interest Entities [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Cash |  |  | $ 5,568,500
Convertible notes |  |  | 6,671,769
Derivative liability |  |  | 144,818
Total Payback |  |  | $ 12,385,087
Zhenbai [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Cash | $ 459,900 |  |
Interest Payable | 82,782 |  |
Convertible notes | 1,719,336 |  |
Derivative liability | 13,312 |  |
Total Payback | 2,275,330 |  |
Net Loss | $ 330,966 |  |

X
- Definition Business combination interest payable. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Business combination recognized identifiable assets acquired and liabilities assumed cash. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Business combination recognized identifiable assets acquired and liabilities assumed convertible notes. + References No definition available. + Details
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- Definition Business combination recognized identifiable assets acquired and liabilities assumed derivative liability. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Business combination recognized identifiable assets acquired and liabilities assumed net loss. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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Namespace Prefix: | cga_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Period Type: |

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- Details
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