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Note 7 - Intangible Assets, Net (Tables) | 3 Months Ended
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Mar. 31, 2021
Notes Tables |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  |  |  |  |  | Three months ended March 31, 2021 (unaudited) |  |  | Year ended December 31, 2020 |
|  | Weighted average amortization p eriod (years) |  |  | Gross carrying amount |  |  | Accumulated amortization |  |  | Net |  |  | Gross carrying amount |  |  | Accumulated amortization |  |  | Net |
Intangible assets –amortizable: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intangible assets related to the acquisition of Hillcrest Labs business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  |  | 4.4 |  |  | $ | 3,518 |  |  | $ | 1,479 |  |  | $ | 2,039 |  |  | $ | 3,518 |  |  | $ | 1,262 |  |  | $ | 2,256 |
Customer backlog |  |  | 0.5 |  |  |  | 72 |  |  |  | 72 |  |  |  | — |  |  |  | 72 |  |  |  | 72 |  |  |  | — |
Core technologies |  |  | 7.5 |  |  |  | 2,475 |  |  |  | 563 |  |  |  | 1,912 |  |  |  | 2,475 |  |  |  | 480 |  |  |  | 1,995 |
Intangible assets related to an investment in Immervision |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Core technologies |  |  | 6.4 |  |  |  | 7,063 |  |  |  | 1,851 |  |  |  | 5,212 |  |  |  | 7,063 |  |  |  | 1,575 |  |  |  | 5,488 |
Intangible assets related to an investment in NB-IoT technologies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NB-IoT technologies (*) |  |  | 7.0 |  |  |  | 1,961 |  |  |  | 934 |  |  |  | 1,027 |  |  |  | 1,961 |  |  |  | 864 |  |  |  | 1,097 |
Total intangible assets |  |  |  |  |  | $ | 15,089 |  |  | $ | 4,899 |  |  | $ | 10,190 |  |  | $ | 15,089 |  |  | $ | 4,253 |  |  | $ | 10,836 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
2021 |  | $ | 1,936 |
2022 |  |  | 2,581 |
2023 |  |  | 1,906 |
2024 |  |  | 1,852 |
2025 |  |  | 1,563 |
2026 and thereafter |  |  | 352 |
|  | $ | 10,190 |

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