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Commitments and Contingencies (Tables) | 9 Months Ended
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Jun. 30, 2015
SCHEDULE OF CAPITAL COMMITMENTS [Table Text Block] |
|  |  | September 30, |  |  | June 30, |
|  |  | 2014 |  |  | 2015 |
| For construction of buildings | $ | 4,348,995 |  | $ | 2,740,692 |
| For purchases of equipment |  | 1,073,596 |  |  | 70,465 |
| Capital injection to Dalian BAK Power and Dalian BAK Trading Note |  | 25,400,000 |  |  | 18,910,708 |
|  | $ | 30,822,591 |  | $ | 21,721,865 |

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- Definition Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount. + References No definition available. + Details
Name: | us-gaap_LongTermPurchaseCommitmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration