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Pledged Deposits | 6 Months Ended
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Mar. 31, 2014
Pledged Deposits [Text Block] | 2. Pledged Deposits Pledged deposits as of September 30, 2013 and March 31, 2014 consisted of the following:
|  | September 30, 2013 |  |  | March 31, 2014 |
Pledged deposits with banks for: |  |  |  |  |  |
Advances from an unrelated third party (Note 10(b)) | $ | 2,450,540 |  | $ | 2,413,011 |
Bills payable |  | 5,687,147 |  |  | 9,513,581 |
| $ | 8,137,687 |  | $ | 11,926,592 |

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- Definition Pledged Deposits [Text Block] + References No definition available. + Details
Name: | cbak_PledgedDepositsTextBlock
Namespace Prefix: | cbak_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration