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Income Tax (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2013
Income Tax (Textual)
Effective income tax rate	2174.00%	(12.50%)
Net operating losses	$ 14,320,000
Provisional tax expense	8,039,476	$ (6,933,525)
Foreign pretax earnings	830,000	$ 1,210,000
Undistributed earnings	$ 99,370,000
Deferred tax asset valuation allowance	100.00%
Operating income loss carryforwards, period	20 years
Minimum [Member]
Income Tax (Textual)
Effective income tax rate	21.00%
Maximum [Member]
Income Tax (Textual)
Effective income tax rate	35.00%
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%		15.00%
Huahong, Zhonghong and Erdos TCH [Member]
Income Tax (Textual)
Effective income tax rate	25.00%	25.00%

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