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Note 7 - Goodwill and Intangible Assets, Net (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Schedule of Goodwill [Table Text Block] |
|  | Year ended December 31, |
|  | 2023 |  |  | 2024 |
Balance as of January 1, |  | $ | 74,777 |  |  | $ | 58,308 |
Acquisition |  |  | 1,994 |  |  |  | — |
Sale of Intrinsix (see note 1) |  |  | (18,463 | ) |  |  | — |
Balance as of December 31, |  | $ | 58,308 |  |  | $ | 58,308 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | Weighted average amortization period (years) |  |  | Gross carrying amount |  |  | Accumulated amortization |  |  | Net |  |  | Gross carrying amount |  |  | Accumulated amortization |  |  | Net |
Intangible assets –amortizable: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets related to the acquisition of VisiSonics business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  |  | 4.0 |  |  | $ | 432 |  |  | $ | 72 |  |  | $ | 360 |  |  | $ | 432 |  |  | $ | 180 |  |  | $ | 252 |
Technologies |  |  | 5.0 |  |  |  | 1,174 |  |  |  | 157 |  |  |  | 1,017 |  |  |  | 1,174 |  |  |  | 391 |  |  |  | 783 |
Intangible assets related to the acquisition of Hillcrest Labs business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  |  | 4.4 |  |  |  | 3,518 |  |  |  | 3,190 |  |  |  | 328 |  |  |  | 3,518 |  |  |  | 3,351 |  |  |  | 167 |
Customer backlog |  |  | 0.5 |  |  |  | 72 |  |  |  | 72 |  |  |  | — |  |  |  | 72 |  |  |  | 72 |  |  |  | — |
R&D Tools |  |  | 7.5 |  |  |  | 2,475 |  |  |  | 1,470 |  |  |  | 1,005 |  |  |  | 2,475 |  |  |  | 1,800 |  |  |  | 675 |
Intangible assets related to an investment in NB-IoT technologies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NB-IoT technologies |  |  | 7.0 |  |  |  | 1,961 |  |  |  | 1,704 |  |  |  | 257 |  |  |  | 1,961 |  |  |  | 1,961 |  |  |  | — |
Total intangible assets |  |  |  |  |  | $ | 9,632 |  |  | $ | 6,665 |  |  | $ | 2,967 |  |  | $ | 9,632 |  |  | $ | 7,755 |  |  | $ | 1,877 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
2025 |  |  | 833 |
2026 |  |  | 680 |
2027 |  |  | 286 |
2028 |  |  | 78 |
|  | $ | 1,877 |

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