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Note 7 - Goodwill and Intangible Assets, Net (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Schedule of Goodwill [Table Text Block] |
|  | Year ended December 31, |
|  | 2021 |  |  | 2022 |
Balance as of January 1, |  | $ | 51,070 |  |  | $ | 74,777 |
Acquisition |  |  | 23,707 |  |  |  | — |
Balance as of December 31, |  | $ | 74,777 |  |  | $ | 74,777 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  |  |  |  |  | Year ended December 31, 2021 |  |  |  |  |  |  | Year ended December 31, 2022 |
|  | Weighted average amortization p eriod (years) |  |  | Gross carrying amount |  |  | Accumulated amortization |  |  | Net |  |  | Gross carrying amount |  |  | Accumulated amortization |  |  | Impairment (*) |  |  | Net |
Intangible assets –amortizable: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets related to the acquisition of Intrinsix business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  |  | 5.5 |  |  | $ | 3,604 |  |  | $ | 382 |  |  | $ | 3,222 |  |  | $ | 3,604 |  |  | $ | 1,037 |  |  | $ | — |  |  | $ | 2,567 |
Customer backlog |  |  | 1.5 |  |  |  | 421 |  |  |  | 164 |  |  |  | 257 |  |  |  | 421 |  |  |  | 421 |  |  |  | — |  |  |  | — |
Patents |  |  | 5.0 |  |  |  | 218 |  |  |  | 26 |  |  |  | 192 |  |  |  | 218 |  |  |  | 69 |  |  |  | — |  |  |  | 149 |
Core technologies |  |  | 3.0 |  |  |  | 3,329 |  |  |  | 647 |  |  |  | 2,682 |  |  |  | 3,329 |  |  |  | 1,757 |  |  |  | — |  |  |  | 1,572 |
Intangible assets related to the acquisition of Hillcrest Labs business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  |  | 4.4 |  |  |  | 3,518 |  |  |  | 2,130 |  |  |  | 1,388 |  |  |  | 3,518 |  |  |  | 2,998 |  |  |  | — |  |  |  | 520 |
Customer backlog |  |  | 0.5 |  |  |  | 72 |  |  |  | 72 |  |  |  | — |  |  |  | 72 |  |  |  | 72 |  |  |  | — |  |  |  | — |
R&D Tools |  |  | 7.5 |  |  |  | 2,475 |  |  |  | 810 |  |  |  | 1,665 |  |  |  | 2,475 |  |  |  | 1,140 |  |  |  | — |  |  |  | 1,335 |
Intangible assets related to Immervision assets acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
R&D Tools |  |  | 6.4 |  |  |  | 7,063 |  |  |  | 2,679 |  |  |  | 4,384 |  |  |  | 7,063 |  |  |  | 3,507 |  |  |  | 3,556 |  |  |  | — |
Intangible assets related to an investment in NB-IoT technologies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NB-IoT technologies (**) |  |  | 7.0 |  |  |  | 1,961 |  |  |  | 1,144 |  |  |  | 817 |  |  |  | 1,961 |  |  |  | 1,424 |  |  |  | — |  |  |  | 537 |
Total intangible assets |  |  |  |  |  | $ | 22,661 |  |  | $ | 8,054 |  |  | $ | 14,607 |  |  | $ | 22,661 |  |  | $ | 12,425 |  |  | $ | 3,556 |  |  | $ | 6,680 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
2023 |  |  | 2,611 |
2024 |  |  | 1,909 |
2025 |  |  | 1,189 |
2026 |  |  | 956 |
2027 |  |  | 15 |
|  | $ | 6,680 |

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