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Significant Customers, Concentrations of Credit Risk and Geographic Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Significant Customers, Concentrations of Credit Risk and Geographic Information |
Schedule of net revenues from customers |
|  | Year ended December 31, |
|  | 2020 |  | 2019 |
Customer A |  | 17 | % | <10 | %
Customer B |  | 16 | % | 37 | %
Customer C |  | 12 | % | 10 | %
Customer D |  | <10 | % | 10 | %
Schedule of net revenues by geographical area |
|  | Year ended December 31,
|  | 2020 |  | 2019
|  | (in thousands)
United States |  | $ | 2,832 |  | $ | 3,726
Asia and Middle East |  |  | 3,575 |  |  | 2,949
Europe and other |  |  | 481 |  |  | 630
Revenue, net |  | $ | 6,888 |  | $ | 7,305
Schedule of assets by geographical area |
|  | December 31, |  | December 31,
|  | 2020 |  | 2019
|  | (in thousands)
United States |  | $ | 1,194 |  | $ | 648
Asia |  |  | 332 |  |  | 853
Total long-lived assets |  | $ | 1,526 |  | $ | 1,501

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