TAXES PAYABLE (Details 2) (USD $)	3 Months Ended	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Jun. 30, 2012
Income before income taxes	$ 10,711,384	$ 13,195,147
Expected Income Tax Expense Benefit	2,557,340	3,165,053
Income Benefits From Company Classified High Tech	(1,168,747)	(766,515)
Income Tax Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary	6,144	(440,242)
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	455,247	505,215
Provision for income taxes	1,849,984	2,463,511	10,801,313
Income Tax Expense Benefit Percentage	17.30%	18.70%
China [Member]
Income before income taxes	12,050,347	14,681,072
Expected Income Tax Expense Benefit	3,012,587	3,670,268
Income Benefits From Company Classified High Tech	(1,168,747)	(766,515)
Income Tax Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary	6,144	(440,242)
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	0	0
Provision for income taxes	1,849,984	2,463,511
Expected Income Tax Expense Benefit Percentage	25.00%
Income Benefits From Company Classified High Tech Percentage	(9.70%)
Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary Percentage	0.10%
Income Tax Expense Benefit Percentage	15.40%
China [Member] \| Maximum [Member]
Effective Income Tax Rate Percentage	25.00%	25.00%
China [Member] \| Minimum [Member]
Effective Income Tax Rate Percentage	15.00%	15.00%
United States [Member]
Income before income taxes	(1,338,963)	(1,485,925)
Expected Income Tax Expense Benefit	(455,247)	(505,215)
Income Benefits From Company Classified High Tech	0	0
Income Tax Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary	0	0
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance	455,247	505,215
Provision for income taxes	$ 0	$ 0
Expected Income Tax Expense Benefit Percentage	34.00%	34.00%
Income Benefits From Company Classified High Tech Percentage	0.00%	0.00%
Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary Percentage	0.00%	0.00%
Income Tax Expense Benefit Percentage	(34.00%)	(34.00%)
Effective Income Tax Rate Percentage	0.00%	0.00%

The Income tax rate applicable to the entity.

No definition available.

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- Definition

The sum of the excepted current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

+ References

No definition available.

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- Definition

The excepted income tax expense percentage applicable to company during the period.

+ References

No definition available.

+ Details

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- Definition

The sum of income benefits from company classified High-tech pertaining to continuing operations.

+ References

No definition available.

+ Details

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Namespace Prefix:	cga_
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- Definition

The income tax benefits to company classified High Tech in percentage during the period.

+ References

No definition available.

+ Details

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- Definition

The income tax expense benefit percentage applicable to the entity during the period.

+ References

No definition available.

+ Details

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- Definition

The income tax reconciliation equity in earnings losses of unconsolidated subsidiary Percentage during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	cga_
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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a),(b)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 45

-Subparagraph a, b

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

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-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Article 4

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-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6515339

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to changes in the valuation allowance for deferred tax assets in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 26

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32123-109318

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- Definition

The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the equity in earnings (losses) of unconsolidated subsidiaries recorded in the period that is exempt from income taxes under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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