XML 45 R30.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Receivables from Former Subsidiaries (Tables) | 3 Months Ended
--- | ---
Dec. 31, 2014
Schedule of Receivable From A Former Subsidiary [Table Text Block] |
|  |  | September 30, |  |  | December 31, |
|  |  | 2014 |  |  | 2014 |
| Shenzhen BAK | $ | 1,856,356 |  | $ | 1,857,110 |
| BAK Tianjin |  | 7,261,089 |  |  | 400,838 |
|  |  | 9,117,445 |  |  | 2,257,948 |
| Less: Allowance for doubtful accounts |  | (1,856,356 | ) |  | (1,835,869 | )
|  | $ | 7,261,089 |  | $ | 422,079 |

X
- Definition Schedule of Receivable from a former subsidiary [Table Text Block] + References No definition available. + Details
Name: | cbak_ScheduleOfReceivableFromAFormerSubsidiaryTableTextBlock
Namespace Prefix: | cbak_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration