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Acquisition (Details Textual) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Nov. 16, 2015	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Payments to Acquire Businesses			$ 1,780
Core And Developed Technology [Member]
Business Acquisition [Line Items]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life		7 years
Liqxtal Technology Inc. [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses	$ 1,780
Ownership Percentage Acquired	64.00%
Losses included in the consolidated statements of income			$ 30

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- Definition

Represents the amount of losses included in the consolidated statements of income.

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- Definition

Represents the percentage for ownership acquired.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

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