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Note 9 - Geographic Information and Major Customer Data (Tables) | 6 Months Ended
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Jun. 30, 2024
Notes Tables |
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Six months ended June 30, |  |  | Three months ended June 30, |
|  | 2024 (unaudited) |  |  | 2023 (unaudited) |  |  | 2024 (unaudited) |  |  | 2023 (unaudited) |
Revenues based on customer location: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 3,903 |  |  | $ | 4,100 |  |  | $ | 1,365 |  |  | $ | 1,748 |
Europe and Middle East (2) |  |  | 8,954 |  |  |  | 4,893 |  |  |  | 7,442 |  |  |  | 2,084 |
Asia Pacific (1) |  |  | 37,639 |  |  |  | 39,689 |  |  |  | 19,630 |  |  |  | 19,063 |
Other |  |  | 13 |  |  |  | 502 |  |  |  | — |  |  |  | 27 |
|  | $ | 50,509 |  |  | $ | 49,184 |  |  | $ | 28,437 |  |  | $ | 22,922 |
(1) China |  | $ | 29,025 |  |  | $ | 30,477 |  |  | $ | 15,433 |  |  | $ | 12,714 |
(2) Finland |  | $ | 6,645 |  |  | $ | * | ) |  | $ | 6,455 |  |  | $ | * | )
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Six months ended June 30, |  |  | Three months ended June 30, |
|  | 2024 (unaudited) |  |  | 2023 (unaudited) |  |  | 2024 (unaudited) |  |  | 2023 (unaudited) |
Customer A |  |  | 13 | % |  |  | * | ) |  |  | 13 | % |  |  | 14 | %
Customer B |  |  | 13 | % |  |  | * | ) |  |  | 23 | % |  |  | * | )
Customer C |  |  | 13 | % |  |  | * | ) |  |  | 21 | % |  |  | * | )
Customer D |  |  | * | ) |  |  | * | ) |  |  | * | ) |  |  | 14 | %
Customer E |  |  | * | ) |  |  | * | ) |  |  | * | ) |  |  | 10 | %

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