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Note 6 - Intangible Assets, Net - Schedule of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Total intangible assets, Gross Carrying Amount | $ 8,361 | $ 6,161
Total intangible assets, Accumulated Amortization | 5,661 | 4,419
Intangible assets, net (Note 6) | $ 2,700 | 1,742
Customer Relationships [Member] |  |
Total intangible assets, Weighted Average Amortization Period (Year) | 4 years 182 days |
Total intangible assets, Gross Carrying Amount | $ 272 | 272
Total intangible assets, Accumulated Amortization | 272 | 211
Intangible assets, net (Note 6) |  | 61
Customer Backlog [Member] |  |
Total intangible assets, Weighted Average Amortization Period (Year) | 1 year 182 days |
Total intangible assets, Gross Carrying Amount | $ 93 | 93
Total intangible assets, Accumulated Amortization | 93 | 93
Intangible assets, net (Note 6) |  |
Core Technologies [Member] |  |
Total intangible assets, Weighted Average Amortization Period (Year) | 5 years 36 days |
Total intangible assets, Gross Carrying Amount | $ 5,796 | 5,796
Total intangible assets, Accumulated Amortization | 4,955 | 4,115
Intangible assets, net (Note 6) | $ 841 | 1,681
NB-IoT technologies [Member] |  |
Total intangible assets, Weighted Average Amortization Period (Year) | 7 years |
Total intangible assets, Gross Carrying Amount | $ 2,200 |
Total intangible assets, Accumulated Amortization | 341 |
Intangible assets, net (Note 6) | $ 1,859 |

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