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Pledged Deposits | 6 Months Ended
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Mar. 31, 2016
Pledged Deposits [Text Block] |
2. | Pledged Deposits
| Pledged deposits as of September 30, 2015 and March 31, 2016 consisted of the following:
|  | September 30, |  |  | March 31, |
|  | 2015 |  |  | 2016 |
Pledged deposits with bank for: |  |  |  |  |  |
Bills payable | $ | 1,461,757 |  | $ | 1,893,393 |
Letters of credit |  | 57,844 |  |  | 121,570 |
| $ | 1,519,601 |  | $ | 2,014,963 |

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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