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Construction in Progress (Tables) | 9 Months Ended
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Jun. 30, 2015
Schedule of Construction in Progress [Table Text Block] |
|  |  | September 30, |  |  | June 30, |
|  |  | 2014 |  |  | 2015 |
| Construction in progress | $ | 21,760,746 |  | $ | 20,847,703 |
| Prepayment for acquisition of property, plant and equipment |  | 426,569 |  |  | 69,222 |
| Carrying amount | $ | 22,187,315 |  | $ | 20,916,925 |

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- Definition Schedule of Construction in Progress + References No definition available. + Details
Name: | cbak_ScheduleOfConstructionInProgressTableTextBlock
Namespace Prefix: | cbak_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration