Summary of Significant Accounting Policies (Details 7)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Swedish Krona [Member]
Weighted-average exchange rate for the condensed consolidated statements of operations
Weighted-average exchange rate for statements of operations	8.57	8.62
Japanese Yen [Member]
Weighted-average exchange rate for the condensed consolidated statements of operations
Weighted-average exchange rate for statements of operations	109.63	111.91
South Korean Won [Member]
Weighted-average exchange rate for the condensed consolidated statements of operations
Weighted-average exchange rate for statements of operations	1,090.03	1,136.27
Taiwan Dollar [Member]
Weighted-average exchange rate for the condensed consolidated statements of operations
Weighted-average exchange rate for statements of operations	29.90	30.51