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Summary of Significant Accounting Policies (Acquisition) (Details) | Jan. 30, 2015 | Sep. 30, 2017 | Dec. 24, 2014 | Feb. 28, 2011
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The Company | Merger Agreement |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Exchange ratio | 0.3291 |  |  |
SoLayTec, B.V. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of voting interests acquired |  |  | 51.00% |
Kingstone |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of voting interests acquired |  | 15.00% |  | 55.00%
Kingstone Shanghai |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of voting interests acquired |  | 8.00% |  |

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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