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Related Party Transactions (Details) | Jul. 31, 2014 | Dec. 31, 2018
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5 Elements Global Advisors |  |
Related Party Transaction [Line Items] |  |
Ownership in reporting entity by related party |  | 2.50%
5 Elements Efficiencies (BVI) Ltd. |  |
Related Party Transaction [Line Items] |  |
Ownership in reporting entity by related party |  | 2.40%
5 Elements Efficiencies (BVI) Ltd. | Yeh-Mei Cheng |  |
Related Party Transaction [Line Items] |  |
Ownership interest | 50.00% |
Communal |  |
Related Party Transaction [Line Items] |  |
Ownership in reporting entity by related party | 5.00% |
Communal | 5 Elements Efficiencies (BVI) Ltd. |  |
Related Party Transaction [Line Items] |  |
Ownership interest | 50.00% |

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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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