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Note 9 - Geographic Information and Major Customer Data (Tables) | 6 Months Ended
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Jun. 30, 2023
Notes Tables |
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Six months ended June 30, |  |  | Three months ended June 30, |
|  | 2023 (unaudited) |  |  | 2022 (unaudited) |  |  | 2023 (unaudited) |  |  | 2022 (unaudited) |
Revenues based on customer location: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 8,761 |  |  | $ | 13,737 |  |  | $ | 4,320 |  |  | $ | 6,991 |
Europe and Middle East |  |  | 5,955 |  |  |  | 3,874 |  |  |  | 2,762 |  |  |  | 2,772 |
Asia Pacific (1) |  |  | 39,689 |  |  |  | 49,975 |  |  |  | 19,063 |  |  |  | 23,432 |
Other |  |  | 502 |  |  |  | — |  |  |  | 27 |  |  |  | — |
|  | $ | 54,907 |  |  | $ | 67,586 |  |  | $ | 26,172 |  |  | $ | 33,195 |
(1) China |  | $ | 30,477 |  |  | $ | 41,572 |  |  | $ | 12,714 |  |  | $ | 18,601 |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Six months ended June 30, |  |  | Three months ended June 30, |
|  | 2023 (unaudited) |  |  | 2022 (unaudited) |  |  | 2023 (unaudited) |  |  | 2022 (unaudited) |
Customer A |  |  |  | *) |  |  | 11 | % |  |  | 12 | % |  |  | 11 | %
Customer B |  |  |  | *) |  |  | — |  |  |  | 12 | % |  |  | — |

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