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Business Segments and Significant Customers (Tables) | 6 Months Ended
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Jun. 30, 2012
Business Segments and Significant Customers |
Schedule of revenue from customers in North America, Asia and Europe |
|  | Three Months Ended June 30, |  | Six Months Ended June 30, |
|  | 2012 |  | 2011 |  | 2012 |  | 2011 |
United States |  | $ | 1,036 |  | $ | 1,088 |  | $ | 1,617 |  | $ | 2,434 |
Taiwan |  | 334 |  | 848 |  | 771 |  | 1,637 |
Japan |  | 299 |  | 916 |  | 693 |  | 2,210 |
Europe |  | 67 |  | 436 |  | 79 |  | 542 |
Other Asia |  | — |  | 4 |  | — |  | 8 |
Total |  | $ | 1,736 |  | $ | 3,292 |  | $ | 3,160 |  | $ | 6,831 |
Schedule of customers who accounted for at least 10% of total revenues |
|  | Three Months Ended June 30, |  | Six Months Ended June 30, |
|  | 2012 |  | 2011 |  | 2012 |  | 2011 |
Customer A |  | 35 | % | 15 | % | 31 | % | 13 | %
Customer B |  | 19 | % | 26 | % | 24 | % | 24 | %
Customer C |  | 11 | % | * |  | * |  | * |
Customer D |  | — |  | 17 | % | * |  | 18 | %
*Represents percentages less than 10%.

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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 39 + Details
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- Definition Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. + 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 FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 38 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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