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Prepaid Land Use Rights, net | 3 Months Ended
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Dec. 31, 2013
Prepaid Land Use Rights, net [Text Block] | 7. Prepaid Land Use Rights, net Prepaid land use rights as of September 30, 2013 and December 31, 2013 consisted of the followings:
|  | September 30, |  |  | December 31, |
|  | 2013 |  |  | 2013 |
Prepaid land use rights | $ | 26,531,009 |  | $ | 26,825,067 |
Accumulated amortization |  | (3,861,916 | ) |  | (4,040,260 | )
| $ | 22,669,093 |  | $ | 22,784,807 |
Less: Classified as current assets |  | (736,334 | ) |  | (744,495 | )
| $ | 21,932,759 |  | $ | 22,040,312 |
Amortization expenses of the prepaid land use rights were $185,935 and $134,723 for the three months ended December 31, 2012 and 2013, respectively.

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- Definition Prepaid Land Use Rights, net and Assets and Liabilities Held For Sale + References No definition available. + Details
Name: | cbak_PrepaidLandUseRightsNetAndAssetsAndLiabilitiesHeldForSaleTextBlock
Namespace Prefix: | cbak_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration