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Prepayments and Other Receivables | 12 Months Ended
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Sep. 30, 2012
Prepayments and Other Receivables [Text Block] |
6 | Prepayments and Other Receivables
| Prepayments and other receivables as of September 30, 2011 and 2012 consist of the following:
|  |  | 2011 |  |  | 2012 |
| Prepayments for raw materials and others | $ | 1,271,520 |  | $ | 4,458,058 |
| Other receivables (Note 6 (a)) |  | 4,665,485 |  |  | 4,554,817 |
| Less: Allowance for doubtful accounts |  | (694,587 | ) |  | (1,305,329 | )
|  | $ | 5,242,418 |  | $ | 7,707,546 |
An analysis of allowance for doubtful accounts for the years ended September 30, 2011 and 2012 is as follows:
|  |  | 2011 |  |  | 2012 |
| Balance at beginning of year | $ | 638,079 |  | $ | 694,587 |
| Addition of bad debt expense |  | 25,275 |  |  | 594,956 |
| Foreign exchange adjustment |  | 31,233 |  |  | 15,786 |
| Balance at end of year | $ | 694,587 |  | $ | 1,305,329 |
(a) Other receivables as of September 30, 2011 and 2012 included advances to senior management amounting to approximately US$58,000 and US$11,800 respectively for travel and representation expenses in the ordinary course of business.

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- Definition Prepayments and Other Receivables + References No definition available. + Details
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Namespace Prefix: | cbak_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration