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Segment, Geographic, Product and Significant Customer Information | 6 Months Ended
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Jun. 25, 2016
Segment Reporting [Abstract] |
Geographic And Significant Customer Information Text Block | Note 15. Segment, Geographic, Product and Significant Customer Information The Company has one operating segment, which is the sale, design, manufacture, marketing and support of optical critical dimension and thin film systems. The following tables summarize total net revenues and long-lived assets (excluding intangible assets) attributed to significant countries (in thousands):
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 25, 2016 |  |  | June 27, 2015 |  |  | June 25, 2016 |  |  | June 27, 2015 |
Total net revenues (1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 8,904 |  |  | $ | 15,052 |  |  | $ | 16,095 |  |  | $ | 24,130 |
South Korea |  |  | 4,468 |  |  |  | 7,370 |  |  |  | 12,904 |  |  |  | 22,013 |
China |  |  | 13,009 |  |  |  | 10,090 |  |  |  | 19,515 |  |  |  | 12,887 |
Taiwan |  |  | 5,151 |  |  |  | 9,414 |  |  |  | 10,629 |  |  |  | 23,842 |
Singapore |  |  | 16,617 |  |  |  | 1,625 |  |  |  | 26,519 |  |  |  | 5,626 |
Other |  |  | 7,618 |  |  |  | 5,078 |  |  |  | 17,594 |  |  |  | 10,507 |
Total net revenues |  | $ | 55,767 |  |  | $ | 48,629 |  |  | $ | 103,256 |  |  | $ | 99,005 |
|  | June 25, 2016 |  |  | December 26, 2015 |
Long-lived tangible assets: |  |  |  |  |  |  |  |
United States |  | $ | 41,809 |  |  | $ | 42,581 |
Japan |  |  | 60 |  |  |  | 59 |
South Korea |  |  | 623 |  |  |  | 697 |
All Other |  |  | 992 |  |  |  | 1,156 |
Total long-lived tangible assets |  | $ | 43,484 |  |  | $ | 44,493 |
The following customers accounted for 10% or more of total accounts receivable, net:
|  | At |
|  | June 25, 2016 |  |  | December 26, 2015 |
Micron |  |  | 29.6 | % |  | *** |
Taiwan Semiconductor Manufacturing Company Limited |  | *** |  |  |  | 25.6 | %
Intel |  |  | 16.9 | % |  | *** |
Toshiba Corporation |  |  | 10.3 | % |  |  | 27.1 | %
*** | The customer accounted for less than 10% of total accounts receivable, net, as of that period end.
The following customers accounted for 10% or more of total net revenues:
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 25, 2016 |  |  | June 27, 2015 |  |  | June 25, 2016 |  |  | June 27, 2015 |
Micron |  |  | 35.9 | % |  |  | 32.0 | % |  |  | 31.3 | % |  |  | 19.0 | %
Intel Corporation |  |  | 23.6 | % |  | *** |  |  |  | 19.9 | % |  | *** |
SK Hynix |  | *** |  |  |  | 10.0 | % |  | *** |  |  |  | 12.0 | %
Toshiba Corporation |  | *** |  |  | *** |  |  |  | 10.5 | % |  | *** |
Taiwan Semiconductor Manufacturing Company Limited |  | *** |  |  |  | 17.0 | % |  | *** |  |  |  | 20.0 | %
Samsung Electronics Co. Ltd. |  | *** |  |  | *** |  |  | *** |  |  |  | 20.0 | %
*** | The customer accounted for less than 10% of total net revenues during the period.

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- Definition Geographic and significant customer information. + References No definition available. + Details
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