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Note 4 - Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2021
Notes Tables |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] |
|  | Remainder of 2021 |  |  | 2022 |  |  | 2023 |
License and related revenues |  | $ | 13,849 |  |  | $ | 9,405 |  |  | $ | 2,207 |
Disaggregation of Revenue [Table Text Block] |
|  | Nine months ended September 30, 2021 (unaudited) |  |  | Three months ended September 30, 2021 (unaudited) |
|  | Licensing, NRE and related revenues |  |  | Royalties |  |  | Total |  |  | Licensing, NRE and related revenues |  |  | Royalties |  |  | Total |
Primary geographical markets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 11,602 |  |  | $ | 7,688 |  |  | $ | 19,290 |  |  | $ | 6,308 |  |  | $ | 2,484 |  |  | $ | 8,792 |
Europe and Middle East |  |  | 1,430 |  |  |  | 2,005 |  |  |  | 3,435 |  |  |  | 597 |  |  |  | 833 |  |  |  | 1,430 |
Asia Pacific |  |  | 38,458 |  |  |  | 27,456 |  |  |  | 65,914 |  |  |  | 14,653 |  |  |  | 7,905 |  |  |  | 22,558 |
Other |  |  | 10 |  |  |  | — |  |  |  | 10 |  |  |  | 10 |  |  |  | — |  |  |  | 10 |
Total |  | $ | 51,500 |  |  | $ | 37,149 |  |  | $ | 88,649 |  |  | $ | 21,568 |  |  | $ | 11,222 |  |  | $ | 32,790 |
Major product/service lines |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Connectivity products (baseband for handset and other devices, Bluetooth, Wi-Fi, NB-IoT and SATA/SAS) |  | $ | 38,886 |  |  | $ | 27,692 |  |  | $ | 66,578 |  |  | $ | 16,368 |  |  | $ | 7,500 |  |  | $ | 23,868 |
Smart sensing products (AI, sensor fusion, audio/sound and imaging and vision) |  |  | 12,614 |  |  |  | 9,457 |  |  |  | 22,071 |  |  |  | 5,200 |  |  |  | 3,722 |  |  |  | 8,922 |
Total |  | $ | 51,500 |  |  | $ | 37,149 |  |  | $ | 88,649 |  |  | $ | 21,568 |  |  | $ | 11,222 |  |  | $ | 32,790 |
Timing of revenue recognition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products transferred at a point in time |  | $ | 38,458 |  |  | $ | 37,149 |  |  | $ | 75,607 |  |  | $ | 14,406 |  |  | $ | 11,222 |  |  | $ | 25,628 |
Products and services transferred over time |  |  | 13,042 |  |  |  | — |  |  |  | 13,042 |  |  |  | 7,162 |  |  |  | — |  |  |  | 7,162 |
Total |  | $ | 51,500 |  |  | $ | 37,149 |  |  | $ | 88,649 |  |  | $ | 21,568 |  |  | $ | 11,222 |  |  | $ | 32,790 |
|  | Nine months ended September 30, 2020 (unaudited) |  |  | Three months ended September 30, 2020 (unaudited) |
|  | Licensing and related revenues |  |  | Royalties |  |  | Total |  |  | Licensing and elated revenues |  |  | Royalties |  |  | Total |
Primary geographical markets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 5,784 |  |  | $ | 7,970 |  |  | $ | 13,754 |  |  | $ | 1,035 |  |  | $ | 2,044 |  |  | $ | 3,079 |
Europe and Middle East |  |  | 4,980 |  |  |  | 5,037 |  |  |  | 10,017 |  |  |  | 347 |  |  |  | 478 |  |  |  | 825 |
Asia Pacific |  |  | 29,681 |  |  |  | 18,729 |  |  |  | 48,410 |  |  |  | 11,038 |  |  |  | 10,018 |  |  |  | 21,056 |
Total |  | $ | 40,445 |  |  | $ | 31,736 |  |  | $ | 72,181 |  |  | $ | 12,420 |  |  | $ | 12,540 |  |  | $ | 24,960 |
Major product/service lines |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Connectivity products (baseband for handset and other devices, Bluetooth, Wi-Fi, NB-IoT and SATA/SAS) |  | $ | 31,679 |  |  | $ | 25,037 |  |  | $ | 56,716 |  |  | $ | 8,821 |  |  | $ | 9,752 |  |  | $ | 18,573 |
Smart sensing products (AI, sensor fusion, audio/sound and imaging and vision) |  |  | 8,766 |  |  |  | 6,699 |  |  |  | 15,465 |  |  |  | 3,599 |  |  |  | 2,788 |  |  |  | 6,387 |
Total |  | $ | 40,445 |  |  | $ | 31,736 |  |  | $ | 72,181 |  |  | $ | 12,420 |  |  | $ | 12,540 |  |  | $ | 24,960 |
Timing of revenue recognition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products transferred at a point in time |  | $ | 30,405 |  |  | $ | 31,736 |  |  | $ | 62,141 |  |  | $ | 9,099 |  |  | $ | 12,540 |  |  | $ | 21,639 |
Products and services transferred over time |  |  | 10,040 |  |  |  | — |  |  |  | 10,040 |  |  |  | 3,321 |  |  |  | — |  |  |  | 3,321 |
Total |  | $ | 40,445 |  |  | $ | 31,736 |  |  | $ | 72,181 |  |  | $ | 12,420 |  |  | $ | 12,540 |  |  | $ | 24,960 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | September 30, 2021 (unaudited) |  |  | December 31, 2020 |
Trade receivables |  | $ | 15,269 |  |  | $ | 14,765 |
Unbilled receivables (associated with licensing, NRE and related revenue) |  |  | 2,123 |  |  |  | 5,479 |
Unbilled receivables (associated with royalties) |  |  | 9,189 |  |  |  | 10,980 |
Deferred revenues (short-term contract liabilities) |  |  | 6,217 |  |  |  | 2,434 |

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