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Subsequent Events (Details) - USD ($) |  |  |  | 9 Months Ended
--- | --- | --- | --- | ---
Nov. 02, 2017 | Nov. 01, 2017 | Oct. 07, 2017 | Sep. 30, 2017
Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Percentage of ownership |  |  |  | 70.00%
Subsequent Event | Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Percentage of ownership | 63.00% | 70.00% |  |
Subsequent Event | Wilson Lin Ph. D. |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Months of base salary |  |  | 12 months |
Severance costs |  |  | $ 300,000 |
Months of group health insurance coverage |  |  | 12 months |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Subsequent Event | 3rd party investor |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Capital | $ 2,000,000 |  |  |
Percentage of ownership | 10.00% |  |  |

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