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Construction in Progress (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($)
Xuzhou Huayu project [Member]
Construction in Progress (Textual)
Additional construction in progress	$ 12,720
Xuzhou Tian'an project [Member]
Construction in Progress (Textual)
Additional construction in progress	4,410
Boxing County Chengli project [Member]
Construction in Progress (Textual)
Additional construction in progress	$ 4,910

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- Definition

Additional construction in progress gross

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No definition available.

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- References

No definition available.

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type: