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Deferred Government Grants (Narrative) (Details)	12 Months Ended
	Sep. 30, 2014 USD ($)	Sep. 30, 2014 CNY
Deferred Government Grants 1		150,000,000cbak_DeferredGovernmentGrantsZeroTwoSixFiveZeroThreeOneThreeFiveSBwnKwzswTkr
Deferred Government Grants 2	$ 1,018,016cbak_DeferredGovernmentGrantsZeroTwoSixFiveZeroThreeOneThreeFiveNGLWFiveZeroqTZeroBfX

X

- Definition

Deferred Government Grants 2

+ References

No definition available.

+ Details

Name:	cbak_DeferredGovernmentGrantsZeroTwoSixFiveZeroThreeOneThreeFiveNGLWFiveZeroqTZeroBfX
Namespace Prefix:	cbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Deferred Government Grants 1

+ References

No definition available.

+ Details

Name:	cbak_DeferredGovernmentGrantsZeroTwoSixFiveZeroThreeOneThreeFiveSBwnKwzswTkr
Namespace Prefix:	cbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration