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v3.22.2.2

Concentrations and Litigation (Details) | 3 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
Concentrations and Litigation (Details) [Line Items] |  |
Concentration risk, percentage | 10.00% | 10.00%
supplies [Member] |  |
Concentrations and Litigation (Details) [Line Items] |  |
Concentration risk, percentage | 10.00% | 10.00%

X
- 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
Name: | cga_ConcentrationsandLitigationDetailsLineItems
Namespace Prefix: | cga_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_SupplierConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |