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Commitments and Contingencies (Tables) | 12 Months Ended
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Sep. 30, 2013
SCHEDULE OF CAPITAL COMMITMENTS [Table Text Block] |
|  |  | 2012 |  |  | 2013 |
| For construction of buildings | $ | 10,820,593 |  | $ | 321,668 |
| For purchases of equipment |  | 3,630,112 |  |  | 1,174,695 |
|  | $ | 14,450,705 |  | $ | 1,496,363 |
SCHEDULE OFGUARANTEES [Table Text Block] |
| Guarantee for |  | 2012 |  |  | 2013 |  |  | Guarantee Period |
| Shenzhen Tongli Hi-tech Co. Ltd. - a non-related party | $ | 2,386,369 |  | $ | - |  |  | Expired on 3/31/13 |
| Tianjin Huaxiahongyuan Ltd. - a non-related party |  | 2,386,369 |  |  | 2,450,540 |  |  | 5/22/13-5/21/16 |
| Shenzhen Yasu Technology Co. Ltd. - a non-related party |  | 9,545,476 |  |  | 8,985,314 |  |  | 5/25/12-6/24/16 Expired on 6/20/2013, extended to 6/24/2016 |
| Shenzhen Langjin - a non-related party |  | 9,545,476 |  |  | 9,802,159 |  |  | 8/15/11-8/14/14 |
| Hubei Yanguang Energy Technology Co. Ltd. – a non-related party |  | - |  |  | 4,901,080 |  |  | 4/3/13-4/2/16 |
| Tianjin BAK New Energy Research Institute Co., Ltd.- a related party |  | 11,247,753 |  |  | 4,901,080 |  |  | 7/11/13-7/10/16 |
|  | $ | 35,111,443 |  | $ | 31,040,173 |  |  |  |
SCHEDULE OF DISCOUNTED BANK ACCEPTANCE BILLS [Table Text Block] |
|  |  | 2012 |  |  | 2013 |
| Bank acceptance bills | $ | 21,962,849 |  | $ | 20,307,818 |

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- Definition Tabular disclosure of short-term negotiable time drafts drawn on and accepted by an institution (also known as banker's acceptances), outstanding and any related unamortized discounts or fee income required to be and included in the financial statement disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.14) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 14 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10102-111533 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6378556&loc=d3e10152-111534 + Details
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