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Pledged Deposits | 3 Months Ended
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Dec. 31, 2012
Pledged Deposits [Text Block] | 2 Pledged Deposits Pledged deposits as of September 30, 2012 and December 31, 2012 consisted of the following:
|  | September 30, |  |  | December 31, |
|  | 2012 |  |  | 2012 |
Pledged deposits with banks for: |  |  |  |  |  |
Construction payable | $ | 129,768 |  | $ | - |
Bills payable |  | 5,380,430 |  |  | 4,938,696 |
| $ | 5,510,198 |  | $ | 4,938,696 |
Deposits pledged for construction payable are generally released when the relevant construction projects 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