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Concentrations and Credit Risk (Tables) | 3 Months Ended
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Mar. 31, 2018
SCHEDULE OF REVENUE BY MAJOR CUSTOMERS BY REPORTING SEGMENTS [Table Text Block] |
|  |  | Three months ended March 31, |
|  |  | 2017 |  |  |  |  |  | 2018 |  |  |  |
| Customer A | $ | * |  |  | * |  | $ | 1,162,051 |  |  | 35.08% |
| Customer B |  | * |  |  | * |  |  | 693,347 |  |  | 20.93% |
| Customer C |  | * |  |  | * |  |  | 383,773 |  |  | 11.58% |
| Customer D |  | * |  |  | * |  |  | 374,213 |  |  | 11.30% |
| Customer E |  | 3,110,679 |  |  | 83.71% |  |  | * |  |  | * |
SCHEDULE OF ACCOUNTS RECEIVABLE BY MAJOR CUSTOMER [Table Text Block] |
|  |  | December 31, 2017 |  |  |  |  |  | March 31, 2018 |  |  |  |
| Customer F | $ | 23,835,201 |  |  | 62.08% |  | $ | 24,711,459 |  |  | 74.8% |
| Customer G |  | 4,855,518 |  |  | 12.65% |  |  | 3,870,731 |  |  | 11.7% |
| Customer H |  | 4,664,285 |  |  | 12.15% |  |  | * |  |  | * |
SCHEDULE OF TRANSACTIONS WITH THE FORMER SUBSIDIARIES [Table Text Block] |
|  |  | Three months ended March 31, |
|  |  | 2017 |  |  | 2018 |
| Purchase of inventories from |  |  |  |  |  |
| BAK Tianjin | $ | - |  | $ | 480 |
| Shenzhen BAK |  | 2,362,444 |  |  | - |
| Zhengzhou BAK Battery Co., Ltd* |  | 12,457 |  |  | - |
| Sales of finished goods to |  |  |  |  |  |
| BAK Tianjin |  | 26,546 |  |  | 10,080 |
| Shenzhen BAK |  | 60,797 |  |  | - |
| Zhengzhou BAK Battery Co., Ltd* | $ | 13,648 |  | $ | - |

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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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Namespace Prefix: | cbak_
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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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Namespace Prefix: | us-gaap_
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