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Prepaid Land Use Rights, net | 6 Months Ended
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Mar. 31, 2014
Prepaid Land Use Rights, net [Text Block] | 7. Prepaid Land Use Rights, net Prepaid land use rights as of September 30, 2013 and March 31, 2014 consisted of the followings:
|  | September 30, 2013 |  |  | March 31, 2014 |
Prepaid land use rights | $ | 26,531,009 |  | $ | 26,124,697 |
Accumulated amortization |  | (3,861,916 | ) |  | (4,065,580 | )
| $ | 22,669,093 |  | $ | 22,059,117 |
Less: Classified as current assets |  | (736,334 | ) |  | (744,495 | )
| $ | 21,932,759 |  | $ | 21,314,622 |
Amortization expenses of the prepaid land use rights were $391,519 and $133,285 for the three months ended March 31, 2013 and 2014 and $577,454 and $268,008 for the six months ended March 31, 2013 and 2014, 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