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Construction in Progress (Details Textual) $ in Thousands | 6 Months Ended
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Jun. 30, 2017 USD ($)
Xuzhou Huayu project [Member] |
Construction in Progress (Textual) |
Additional construction in progress | $ 11,810
Xuzhou Tian'an project [Member] |
Construction in Progress (Textual) |
Additional construction in progress | $ 4,100

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- Details
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Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |