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Concentrations and Credit Risk (Tables) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2018
SCHEDULE OF REVENUE BY MAJOR CUSTOMERS BY REPORTING SEGMENTS [Table Text Block] |
|  | Three months ended September 30, |
|  | 2017 |  |  | 2018 |
Customer A | $ | 9,477,104 |  |  | 53.39% |  | $ | * |  |  | * |
Customer B |  | 7,368,320 |  |  | 41.51% |  |  | * |  |  | * |
Customer C |  | * |  |  | * |  |  | 1,672,191 |  |  | 29.92% |
Customer D |  | * |  |  | * |  |  | 2,081,697 |  |  | 37.24% |
Customer E |  | * |  |  | * |  |  | 852,331 |  |  | 15.25% |
|  | Nine months ended September 30, |
|  | 2017 |  |  | 2018 |
Customer A | $ | 18,132,366 |  |  | 65.21% |  | $ | * |  |  | * |
Customer B |  | 7,504,870 |  |  | 26.99% |  |  | * |  |  | * |
Customer C |  | * |  |  | * |  |  | 5,374,871 |  |  | 35.95% |
Customer D |  | * |  |  | * |  |  | 2,081,697 |  |  | 13.92% |
SCHEDULE OF ACCOUNTS RECEIVABLE BY MAJOR CUSTOMER [Table Text Block] |  |
|  | December 31, 2017 |  |  | September 30, 2018 |
Customer B | $ | 23,835,201 |  |  | 62.08% |  | $ | 6,323,630 |  |  | 33.05% |
Customer C |  | * |  |  | * |  |  | 3,325,111 |  |  | 17.38% |
Customer D |  | * |  |  | * |  |  | 2,296,768 |  |  | 12.00% |
Customer F |  | 4,855,518 |  |  | 12.65% |  |  | 3,536,795 |  |  | 18.48% |
Customer G |  | 4,664,285 |  |  | 12.15% |  |  | * |  |  | * |
SCHEDULE OF TRANSACTIONS WITH THE FORMER SUBSIDIARIES [Table Text Block] |  |
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2017 |  |  | 2018 |  |  | 2017 |  |  | 2018 |
Purchase of inventories from |  |  |  |  |  |  |  |  |  |  |  |
BAK Shenzhen** | $ | 9,248,609 |  | $ | - |  | $ | 13,527,981 |  | $ | 108,718 |
Zhengzhou BAK Battery Co., Ltd* |  | - |  |  | - |  |  | - |  |  | 2,062,432 |
Sales of finished goods to |  |  |  |  |  |  |  |  |  |  |  |
BAK Tianjin |  | 55,533 |  |  | 4,073 |  |  | 98,233 |  |  | 31,610 |
BAK Shenzhen** |  | 728 |  |  | - |  |  | 61,525 |  |  | - |
Zhengzhou BAK Battery Co., Ltd* |  | 163 |  |  | - |  |  | 13,811 |  |  | - |
Proceeds on disposal of patented proprietary technology offset against amount due to BAK Shenzhen (Note 6)** | $ | - |  | $ | 13,034,583 |  | $ | - |  | $ | 13,034,583 |

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- Definition SCHEDULE OF ACCOUNTS RECEIVABLE BY MAJOR CUSTOMER [Table Text Block] + 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
Name: | us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock
Namespace Prefix: | us-gaap_
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