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Summary of Significant Accounting Policies (Details 3) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Swedish Krona [Member] |  |  |
Weighted average exchange rate for consolidated statements of operations |  |  |
Weighted-average exchange rate for consolidated statements of operations | 8.55 | 8.43 | 6.86
Japanese Yen [Member] |  |  |
Weighted average exchange rate for consolidated statements of operations |  |  |
Weighted-average exchange rate for consolidated statements of operations | 108.75 | 121.03 | 105.84
South Korean Won [Member] |  |  |
Weighted average exchange rate for consolidated statements of operations |  |  |
Weighted-average exchange rate for consolidated statements of operations | 1,157.14 | 1,130.22 | 1,050.63
Taiwan Dollar [Member] |  |  |
Weighted average exchange rate for consolidated statements of operations |  |  |
Weighted-average exchange rate for consolidated statements of operations | 32.22 | 31.73 |

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