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Other Long-Term Loan | 12 Months Ended
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Sep. 30, 2012
Other Long-Term Loan [Text Block] |
14 | Other Long-Term Loan
| As of September 30, 2012, the Company had interest-free advances of US$2,495,855 from Tianjin Aifuyi Auto Parts. Co., Ltd and US$5,090,921 from Tianjin Zhantuo International Trading Co., Ltd. The above mentioned two companies are both third parties to BAK group, and the Company pledged its land use right to Tianjin Zhantuo International Trading Co., Ltd (note 9).

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- Definition Other Long-Term Loan [Text Block] + References No definition available. + Details
Name: | cbak_OtherLongTermLoanTextBlock
Namespace Prefix: | cbak_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration