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Segments and Major Customers (Details 3) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Major Customer Disclosure
Revenues	$ 89,855	$ 73,779	$ 239,038	$ 219,505
South Korea
Major Customer Disclosure
Revenues	32,519	30,821	95,604	84,463
USA
Major Customer Disclosure
Revenues	32,951	33,146	84,835	90,530
Japan
Major Customer Disclosure
Revenues	9,551	3,460	20,449	19,866
Europe
Major Customer Disclosure
Revenues	4,271	1,571	12,362	8,287
Canada
Major Customer Disclosure
Revenues	1,162	6	2,544	207
SINGAPORE
Major Customer Disclosure
Revenues	4,429	3,222	13,574	11,042
Asia-Other
Major Customer Disclosure
Revenues	$ 4,972	$ 1,553	$ 9,670	$ 5,110

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+ References

No definition available.

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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