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Intangible Assets | 12 Months Ended
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Jan. 01, 2022
Goodwill And Intangible Assets Disclosure [Abstract] |
Intangible Assets | 9. Intangible Assets The components of our purchased intangible assets as of January 1, 2022 are as follows (in thousands):
|  | Useful Lives |  | FY 2021 Annual Amortization |  |  |  |  | Gross Carrying Value |  |  | Accumulated Amortization |  |  | Net Carrying Value |  |  | Useful Lives Remaining
Customer relations |  | 15 Years |  | $ | 28 |  |  |  |  | $ | 340 |  |  | $ | 200 |  |  | $ | 140 |  |  | 5.08 Years
Developed technology |  | 7 Years |  |  | 107 |  |  |  |  |  | 900 |  |  |  | 107 |  |  |  | 793 |  |  | 6.17 Years
Trade names |  | 9 Years |  |  | 28 |  |  |  |  |  | 300 |  |  |  | 28 |  |  |  | 272 |  |  | 8.17 Years
In-process R&D |  | 7 Years |  |  | — |  |  |  |  |  | 1,000 |  |  |  | — |  |  |  | 1,000 |  |  | Not applicable
Patents |  | Varies |  |  | — |  |  |  |  |  | 600 |  |  |  | 600 |  |  |  | — |  |  | Varies
|  |  |  | $ | 163 |  |  |  |  | $ | 3,140 |  |  | $ | 935 |  |  | $ | 2,205 |  |  |
The components of our purchased intangible assets as of January 2, 2021 are as follows (in thousands):
|  | Useful Lives |  | FY 2020 Annual Amortization |  |  | Gross Carrying Value |  |  | Accumulated Amortization |  |  | Net Carrying Value |  |  | Useful Lives Remaining
Customer relations |  | 15 Years |  | $ | 16 |  |  | $ | 240 |  |  | $ | 172 |  |  | $ | 68 |  |  | 4.25 Years
Patents |  | Varies |  |  | — |  |  |  | 600 |  |  |  | 600 |  |  |  | — |  |  | Varies
|  |  |  | $ | 16 |  |  | $ | 840 |  |  | $ | 772 |  |  | $ | 68 |  |  |
Aggregate amortization expense for fiscal years 2021 and 2020 were $163 thousand and $16 thousand, respectively. The amortization of developed technology was charged to research and development expense and the customer relations and trade names were charged to sales and marketing expense. Estimated future amortization expense for purchased intangible assets is as follows (in thousands):
Fiscal Year: |  |  |  |
2022 |  | $ | 192 |
2023 |  |  | 192 |
2024 |  |  | 192 |
2025 |  |  | 180 |
2026 |  |  | 176 |
Thereafter |  |  | 273 |
Total |  | $ | 1,205 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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