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Intangible Assets, net (Narrative) (Details) (USD $) | 6 Months Ended
--- | ---
Mar. 31, 2014
Intangible Assets, Net 1 | $ 54,149
Intangible Assets, Net 2 | 46,279
Intangible Assets, Net 3 | 86,817
Intangible Assets, Net 4 | $ 95,061

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

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