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Concentrations and Credit Risk (Tables) | 12 Months Ended
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Sep. 30, 2016
SCHEDULE OF REVENUE BY MAJOR CUSTOMERS BY REPORTING SEGMENTS [Table Text Block] |
|  |  | 2015 |  |  | 2016 |
| Customer A | $ | 6,036,172 |  |  | 43.41% |  | $ | * |  |  | * |
| Customer B |  | 2,252,816 |  |  | 16.20% |  |  | * |  |  | * |
| BAK Tianjin |  | 1,470,579 |  |  | 10.58% |  |  | * |  |  | * |
| Customer C |  | * |  |  | * |  |  | 3,574,273 |  |  | 34.47% |
| Customer D |  | * |  |  | * |  |  | 2,442,816 |  |  | 23.56% |
SCHEDULE OF CUSTOMER ACCOUNTED FOR MORE THAN 10% OF THE COMPANY'S TOTAL TRADE ACCOUNTS RECEIVABLE [Table Text Block] |
|  |  | 2015 |  |  | 2016 |
| Customer B | $ | 3,146,177 |  |  | 65.93% |  | $ | * |  |  | * |
| Customer A |  | 763,738 |  |  | 16.01% |  |  | * |  |  | * |
| Customer C |  | * |  |  | * |  |  | 1,529,703 |  |  | 64.21% |
SCHEDULLE OF TRANSACTIONS WITH THE FORMER SUBSIDIARIES [Table Text Block] |
|  |  | 2015 |  |  | 2016 |
| Purchase of inventories from |  |  |  |  |  |
| BAK Tianjin | $ | 10,536,887 |  | $ | 2,743,618 |
| Shenzhen BAK |  | - |  |  | 5,565,461 |
| Tianjin BAK New Energy (Note 13) |  | 395,593 |  |  | - |
| Sales of finished goods to |  |  |  |  |  |
| BAK Tianjin |  | 1,470,579 |  |  | 636,331 |
| Shenzhen BAK |  | - |  |  | 102,322 |
| Tianjin BAK New Energy (Note 13) |  | 298,983 |  |  | - |
| Zhengzhou BAK Battery Co., Ltd * |  | 17,063 |  |  | 576 |
| Sales of raw materials to |  |  |  |  |  |
| Shenzhen BAK |  | 1,377,004 |  |  | 836,425 |

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- Definition SCHEDULE OF CUSTOMER ACCOUNTED FOR MORE THAN 10% OF THE COMPANY'S TOTAL TRADE ACCOUNTS RECEIVABLE + References No definition available. + Details
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- Definition Schedule of transaction with former subsidiaries + References No definition available. + Details
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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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