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Other Short-term Loans (Tables) | 3 Months Ended
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Dec. 31, 2014
Schedule of Other Short-term Loan [Table Text Block] |
|  |  |  |  |  | September 30, |  |  | December 31, |
|  |  | Note |  |  | 2014 |  |  | 2014 |
| Advance from a related company |  |  |  | $ |  |  | $ |  |
| – Tianjin BAK New Energy Research Institute Co., Ltd (“Tianjin New Energy”) |  | (a) |  |  | 651,657 |  |  | 840,285 |
| Advances from unrelated third parties |  | (b) |  |  |  |  |  |  |
| – Mr Longqien Peng |  |  |  |  | 162,915 |  |  | 161,117 |
| – Mr Li Yun Fei |  |  |  |  | - |  |  | 80,558 |
| – Mr Shengdan Qiu |  |  |  |  | 4,354,697 |  |  | - |
| – Mr Mingzhe Li |  |  |  |  | 382,848 |  |  | - |
|  |  |  |  |  | 4,900,460 |  |  | 241,675 |
|  |  |  |  | $ | 5,552,117 |  | $ | 1,081,960 |

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- Definition Schedule of Other Liabilities + References No definition available. + Details
Name: | cbak_ScheduleOfOtherLiabilitiesTableTextBlock
Namespace Prefix: | cbak_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration