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Balances with Former Subsidiaries (Narrative) (Details) $ in Millions | 12 Months Ended
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Sep. 30, 2016 USD ($)
Balances With Former Subsidiaries 1 | $ 17.8
Balances With Former Subsidiaries 2 | 1.8
Balances With Former Subsidiaries 3 | $ 1.8

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- Definition Balances With Former Subsidiaries 1 + References No definition available. + Details
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- Definition Balances With Former Subsidiaries 3 + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Balances With Former Subsidiaries 2 + References No definition available. + Details
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Namespace Prefix: | cbak_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
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