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Segment Information | 6 Months Ended
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Jun. 30, 2020
Segment Reporting [Abstract] |
Segment Information | SEGMENT INFORMATION We function as a single operating segment: the design and development of integrated circuits for use in electronic display devices. The majority of our assets are located in the United States. Geographic Information Revenue by geographic region, is as follows:
| Three Months Ended |  |  |  | Six Months Ended |  |
| June 30, |  |  |  | June 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
Japan | $ | 7,515 |  |  | $ | 15,234 |  |  | $ | 16,001 |  |  | $ | 28,694 |
China | 959 |  |  | 1,686 |  |  | 3,805 |  |  | 3,548 |
United States | 433 |  |  | 623 |  |  | 2,099 |  |  | 1,337 |
Europe | 185 |  |  | 71 |  |  | 190 |  |  | 104 |
Taiwan | 161 |  |  | 380 |  |  | 899 |  |  | 899 |
Korea | — |  |  | 33 |  |  | 33 |  |  | 93 |
| $ | 9,253 |  |  | $ | 18,027 |  |  | $ | 23,027 |  |  | $ | 34,675 |
Significant Customers The percentage of revenue attributable to our distributors, top five end customers, and individual distributors or end customers that represented 10% or more of revenue in at least one of the periods presented, is as follows:
| Three Months Ended |  |  |  | Six Months Ended |  |
| June 30, |  |  |  | June 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
Distributors: |  |  |  |  |  |  |
All distributors | 65 | % |  | 45 | % |  | 51 | % |  | 36 | %
Distributor A | 54 | % |  | 37 | % |  | 29 | % |  | 30 | %
End customers: 1 |  |  |  |  |  |  |
Top five end customers | 73 | % |  | 81 | % |  | 61 | % |  | 80 | %
End customer A | 25 | % |  | 45 | % |  | 37 | % |  | 50 | %
End customer B | 14 | % |  | 7 | % |  | 7 | % |  | 5 | %
End customer C | 13 | % |  | 7 | % |  | 5 | % |  | 5 | %
End customer D | 11 | % |  | 9 | % |  | 6 | % |  | 6 | %
End customer E | 10 | % |  | 12 | % |  | 5 | % |  | 14 | %
1End customers include customers who purchase directly from us, as well as customers who purchase our products indirectly through distributors. The following accounts represented 10% or more of total accounts receivable in at least one of the periods presented:
| June 30, 2020 |  | December 31, 2019
Account X | 63 | % |  | 24 | %
Account Y | 15 | % |  | 42 | %
Account Z | — | % |  | 26 | %

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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