It represents the period in which lease term expires.

No definition available.

Name:	cga_LeaseTerm
Namespace Prefix:	cga_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

It represents rented area measured by square feet.

+ References

No definition available.

+ Details

Name:	cga_RentedLeaseAreaInSquareFeet
Namespace Prefix:	cga_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

It represents rented lease area measured by square meter.

+ References

No definition available.

+ Details

Name:	cga_RentedLeaseAreaInSquareMeter
Namespace Prefix:	cga_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

It represents the total contracted value of the agreement including value added taxes and other taxes.

+ References

No definition available.

+ Details

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

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

-Subparagraph 1

-Article 4

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a

-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DueToRelatedPartiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount recognized as an operating expense or loss during the period to reduce the carrying amount of a project that has been impaired but not abandoned.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

+ Details

Name:	us-gaap_ImpairmentOfOngoingProject
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_OperatingLeasedAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

AMOUNT DUE TO RELATED PARTIES (Details Textual)	6 Months Ended					6 Months Ended		12 Months Ended
AMOUNT DUE TO RELATED PARTIES (Details Textual)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Jun. 30, 2013 USD ($)	Dec. 31, 2013 Xian Techteam Science and Technology Industry Group Co [Member] Gufeng [Member] USD ($)	Jun. 30, 2013 Xian Techteam Science and Technology Industry Group Co [Member] Gufeng [Member] USD ($)	Dec. 31, 2013 Kingtone Information [Member] USD ($)	Dec. 31, 2013 Kingtone Information [Member] CNY	Jun. 30, 2012 Kingtone Information [Member] USD ($)	Jun. 30, 2012 Kingtone Information [Member] CNY	Aug. 10, 2010 Kingtone Information [Member] USD ($)	Aug. 10, 2010 Kingtone Information [Member] CNY
Operating Leased Assets [Line Items]
Due to Related Parties, Current	$ 1,512,337		$ 1,304,013	$ 1,367,702	$ 1,304,013
Total Contracted Value of Agreement										458,000	3,030,000
Operating Leases, Rent Expense	16,029	15,519						3,856	24,480
Rented Lease, Area in Square Meter								612 square meters	612 square meters
Rented Lease, Area in Square Feet								6,588 square feet	6,588 square feet
Lease Term								2 years	2 years
Lease Expiration Date								Jul. 01, 2012	Jul. 01, 2012
Impairment of Ongoing Project						$ 183,200	1,212,000