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Pledged Deposits | 12 Months Ended
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Sep. 30, 2012
Pledged Deposits [Text Block] |
3 | Pledged Deposits
| Pledged deposits as of September 30, 2011 and 2012 consist of the following:
|  |  | 2011 |  |  | 2012 |
| Pledged deposits with banks for: |  |  |  |  |  |
| Construction payable | $ | 4,170,122 |  | $ | 129,768 |
| Bills payable |  | 1,555,465 |  |  | 5,380,430 |
|  | $ | 5,725,587 |  | $ | 5,510,198 |
Deposits pledged for construction payable are generally released when the relevant constructions are completed.

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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