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Segments and Major Customers (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Major Customer Disclosure
Revenues	$ 57,919	$ 56,215	$ 124,785	$ 119,078
South Korea
Major Customer Disclosure
Revenues	22,502	21,468	44,527	44,715
USA
Major Customer Disclosure
Revenues	15,106	15,280	40,675	31,469
Japan
Major Customer Disclosure
Revenues	12,261	15,902	26,869	33,471
Europe
Major Customer Disclosure
Revenues	5,432	943	7,560	2,072
Canada
Major Customer Disclosure
Revenues	1,862	1,872	3,648	3,851
Asia-Other
Major Customer Disclosure
Revenues	$ 756	$ 750	$ 1,506	$ 3,500

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X

- 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=6880815&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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