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Income Tax (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2013
Income Tax (Textual) |  |  |  |  |  |
Effective income tax rate | 151.00% | 19.50% | 73.20% | (45.60%) |  |
Net operating losses | $ 14,100 |  | $ 14,100 |  |  |
Deferred tax asset valuation allowance | 100.00% |  | 100.00% |  |  |
Operating income loss carryforwards, period |  |  | 20 years |  |  |
Chinese subsidiaries [Member] |  |  |  |  |  |
Income Tax (Textual) |  |  |  |  |  |
Effective income tax rate |  |  | 25.00% |  |  |
Yinghua and Shanghai TCH [Member] |  |  |  |  |  |
Income Tax (Textual) |  |  |  |  |  |
Effective income tax rate |  |  | 25.00% | 25.00% |  |
Xi'an TCH [Member] |  |  |  |  |  |
Income Tax (Textual) |  |  |  |  |  |
Effective income tax rate |  |  | 25.00% |  | 25.00% | 15.00%
Huahong, Zhonghong and Erdos TCH [Member] |  |  |  |  |  |
Income Tax (Textual) |  |  |  |  |  |
Effective income tax rate |  |  | 25.00% | 25.00% |  |

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