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v3.21.2

Concentrations and Litigation (Details) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Concentrations and Litigation (Details) [Line Items] |  |
Concentration risk, percentage | 10.00% |
Number of customers | 2 |
Total aggregate amount (in Dollars) |  | $ 42,091,565
Supplier Concentration Risk [Member] | One Vendor [Member] |  |
Concentrations and Litigation (Details) [Line Items] |  |
Concentration risk, percentage | 10.00% | 10.00%
Credit Concentration Risk [Member] | Customer One [Member] |  |
Concentrations and Litigation (Details) [Line Items] |  |
Concentration risk, percentage |  | 10.50%
Credit Concentration Risk [Member] | Customer Two [Member] |  |
Concentrations and Litigation (Details) [Line Items] |  |
Concentration risk, percentage |  | 10.40%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References No definition available. + Details
Name: | cga_ConcentrationRiskPercentage
Namespace Prefix: | cga_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- References No definition available. + Details
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Namespace Prefix: | cga_
Data Type: | xbrli:integerItemType
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- Definition Purchase amount. + References No definition available. + Details
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Namespace Prefix: | cga_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: |
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- Details
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- Details
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- Details
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- Details
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