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Note 7 - Goodwill and Intangible Assets, Net - Schedule of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Total intangible assets, Gross Carrying Amount |  | $ 16,695 |  | $ 15,089
Total intangible assets, Accumulated Amortization |  | 10,172 | [1] | 9,141
Total intangible assets, Net | [1] | 3,556 |  | 3,556
Intangible assets, net |  | $ 2,967 |  | 2,392
Customer Relationships [Member] | VisiSonics [Member] |  |  |  |
Total intangible assets, Weighted Average Amortization Period (Year) |  | 4 years |  |
Total intangible assets, Gross Carrying Amount |  | $ 432 |  | 0
Total intangible assets, Accumulated Amortization |  | 72 | [1] | 0
Total intangible assets, Net | [1] | 0 |  | 0
Intangible assets, net |  | $ 360 |  | 0
Customer Relationships [Member] | Acquisition of Hillcrest Labs [Member] |  |  |  |
Total intangible assets, Weighted Average Amortization Period (Year) |  | 4 years 4 months 24 days |  |
Total intangible assets, Gross Carrying Amount |  | $ 3,518 |  | 3,518
Total intangible assets, Accumulated Amortization |  | 3,190 |  | 2,998
Total intangible assets, Net | [1] | 0 |  | 0
Intangible assets, net |  | $ 328 |  | 520
Technology-Based Intangible Assets [Member] | VisiSonics [Member] |  |  |  |
Total intangible assets, Weighted Average Amortization Period (Year) |  | 5 years |  |
Total intangible assets, Gross Carrying Amount |  | $ 1,174 |  | 0
Total intangible assets, Accumulated Amortization |  | 157 |  | 0
Total intangible assets, Net | [1] | 0 |  | 0
Intangible assets, net |  | $ 1,017 |  | 0
Customer Backlog [Member] | Acquisition of Hillcrest Labs [Member] |  |  |  |
Total intangible assets, Weighted Average Amortization Period (Year) |  | 6 months |  |
Total intangible assets, Gross Carrying Amount |  | $ 72 |  | 72
Total intangible assets, Accumulated Amortization |  | 72 | [1] | 72
Total intangible assets, Net | [1] | 0 |  | 0
Intangible assets, net |  | $ 0 |  | 0
Research and Development Tools [Member] | Acquisition of Hillcrest Labs [Member] |  |  |  |
Total intangible assets, Weighted Average Amortization Period (Year) |  | 7 years 6 months |  |
Total intangible assets, Gross Carrying Amount |  | $ 2,475 |  | 2,475
Total intangible assets, Accumulated Amortization |  | 1,470 | [1] | 1,140
Total intangible assets, Net | [1] | 0 |  | 0
Intangible assets, net |  | $ 1,005 |  | 1,335
Research and Development Tools [Member] | Immervision [Member] |  |  |  |
Total intangible assets, Weighted Average Amortization Period (Year) |  | 6 years 4 months 24 days |  |
Total intangible assets, Gross Carrying Amount |  | $ 7,063 |  | 7,063
Total intangible assets, Accumulated Amortization |  | 3,507 | [1] | 3,507
Total intangible assets, Net | [1] | 3,556 |  | 3,556
Intangible assets, net |  | $ 0 |  | 0
NB-IoT technologies [Member] |  |  |  |
Total intangible assets, Weighted Average Amortization Period (Year) |  | 7 years |  |
Total intangible assets, Gross Carrying Amount |  | $ 1,961 |  | 1,961
Total intangible assets, Accumulated Amortization |  | 1,704 |  | 1,424
Total intangible assets, Net | [1] | 0 |  | 0
Intangible assets, net |  | $ 257 |  | $ 537
[1] | During 2022, the Company recorded an impairment charge of $3,556 in operating expenses with respect to Immervision technology acquired in August 2019, as the Company has decided to cease the development of this product line.

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