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Summary of Significant Accounting Policies (Details 8)	Dec. 31, 2018	Dec. 31, 2017
Swedish Krona [Member]
Exchange Rate for Consolidated Balance Sheets
Exchange rate for the consolidated balance sheets	8.87	8.21
Japanese Yen [Member]
Exchange Rate for Consolidated Balance Sheets
Exchange rate for the consolidated balance sheets	109.69	112.65
South Korean Won [Member]
Exchange Rate for Consolidated Balance Sheets
Exchange rate for the consolidated balance sheets	1,113.63	1,066.31
Taiwan Dollar [Member]
Exchange Rate for Consolidated Balance Sheets
Exchange rate for the consolidated balance sheets	30.61	29.66

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Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

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