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v3.19.1

Restatement (Details Textual) | 12 Months Ended
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Dec. 31, 2017
Change in Accounting Estimate [Line Items] |
Description of supplemental agreement | Erdos TCH and Erdos entered a supplemental agreement, effective on May 1, 2016, Erdos TCH cancelled monthly minimum lease payments from Erdos, and charges Erdos based on actual electricity sold at RMB 0.30 / Kwh.

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- Definition Description of supplemental agreement. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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