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Transition period (Tables) | 12 Months Ended
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Dec. 31, 2017
Schedule of unaudited comparative financial information [Table Text Block] |
|  | Three months ended December 31, |
|  | 2015 |  |  | 2016 |
|  | (unaudited) |  |  |  |
Net revenues | $ | 5,500,589 |  | $ | 3,500,516 |
Cost of revenues |  | (5,658,887 | ) |  | (3,974,617 | )
Gross loss |  | (158,298 | ) |  | (474,101 | )
Operating expenses: |  |  |  |  |  |
Research and development expenses |  | (747,537 | ) |  | (439,005 | )
Sales and marketing expenses |  | (170,458 | ) |  | (172,972 | )
General and administrative expenses |  | (1,029,711 | ) |  | (1,109,297 | )
Provision for doubtful accounts |  | - |  |  | (44,861 | )
Total operating expenses |  | (1,947,706 | ) |  | (1,766,135 | )
Operating loss |  | (2,106,004 | ) |  | (2,240,236 | )
Finance income, net |  | 2,006 |  |  | 9,000 |
Other income, net |  | 43,392 |  |  | 36,839 |
Loss before income tax |  | (2,060,606 | ) |  | (2,194,397 | )
Income tax expense |  | (72,067 | ) |  | - |
Net loss |  | (2,132,673 | ) |  | (2,194,397 | )
Loss per share – Basic and diluted | $ | (0.12 | ) | $ | (0.11 | )
Weighted average number of shares of common stock – Basic and diluted |  | 17,171,953 |  |  | 19,745,873 |

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- Definition Schedule of unaudited comparative financial information + References No definition available. + Details
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Namespace Prefix: | cbak_
Data Type: | nonnum:textBlockItemType
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