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Deferred Government Grants (Narrative) (Details) (CNY) In Millions, unless otherwise specified | 9 Months Ended
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Jun. 30, 2014
Deferred Government Grants 1 | 150

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- Definition Deferred Government Grants 1 + References No definition available. + Details
Name: | cbak_DeferredGovernmentGrantsZeroTwoThreeEightZeroTwoEightFiveTwoRRkzThreebSbTwohZerow
Namespace Prefix: | cbak_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration