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Income Tax (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2013
Income Tax (Textual)
Effective income tax rate	56.70%	(110.80%)	58.00%	(73.60%)
Net operating losses	$ 14,150		$ 14,150
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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Deferred Tax Assets, Valuation Allowance, Percentage.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 20
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