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Concentrations and Credit Risk (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Net revenues | $ 22,194,348 |  | $ 24,433,304 |
Zhengzhou BAK Battery Co Limited [Member] |  |  |  |
Net revenues | $ 3,961,050 |  |  | [1]
Concentration risk, Percentage | 17.85% |  |  | [1]
Customer A [Member] |  |  |  |
Net revenues | $ 7,222,245 |  | $ 6,330,608 |
Concentration risk, Percentage | 35.24% |  | 25.91% |
Customer B [Member] |  |  |  |
Net revenues |  | [1] | $ 3,807,854 |
Concentration risk, Percentage |  | [1] | 15.58% |
Customer D [Member] |  |  |  |
Net revenues | $ 3,308,638 |  |  | [1]
Concentration risk, Percentage | 14.91% |  |  | [1]
[1] | Comprised less than 10% of net revenue for the respective period.

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