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Other Long-term Payables (Narrative) (Details) (CNY) In Millions, unless otherwise specified | 6 Months Ended
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Mar. 31, 2014
Other Long-term Payables 1 | 150

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- Definition Other Long-term Payables 1 + References No definition available. + Details
Name: | cbak_OtherLongtermPayablesZeroTwoTwoFourZeroZeroxXKwNRzSevenThreeLdd
Namespace Prefix: | cbak_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration