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Intangible Assets, net (Narrative) (Details) (USD $) | 9 Months Ended
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Jun. 30, 2014
Intangible Assets, Net 1 | $ 146,002
Intangible Assets, Net 2 | 59,601
Intangible Assets, Net 3 | 232,819
Intangible Assets, Net 4 | $ 154,662

X
- Definition Intangible Assets, Net 1 + References No definition available. + Details
Name: | cbak_IntangibleAssetsNetZeroTwoThreeEightZeroZeroBrPFivehmFourrNineKgh
Namespace Prefix: | cbak_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Intangible Assets, Net 3 + References No definition available. + Details
Name: | cbak_IntangibleAssetsNetZeroTwoThreeEightZeroZerodMOneSixKZSevenTwovybn
Namespace Prefix: | cbak_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Intangible Assets, Net 2 + References No definition available. + Details
Name: | cbak_IntangibleAssetsNetZeroTwoThreeEightZeroZeroFCSFFivevBhKGkOne
Namespace Prefix: | cbak_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Intangible Assets, Net 4 + References No definition available. + Details
Name: | cbak_IntangibleAssetsNetZeroTwoThreeEightZeroZerozwRTTwoSevenOneJDGBp
Namespace Prefix: | cbak_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration