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Intangible Assets | 12 Months Ended
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Jan. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets | Intangible Assets Intangible assets consisted of the following (in thousands):
| As of January 31,
| 2022 |  | 2023
Intellectual property excluding patents | $ | 2,458 |  | $ | 2,458
Patents | 950 |  | 950
| 3,408 |  | 3,408
Less accumulated amortization | (533) |  |  | (614) |
| $ | 2,875 |  | $ | 2,794
Amortization expense related to intangible assets was $0.6 million, $0.5 million and $0.1 million for the years ended January 31, 2021, 2022 and 2023, respectively. Intellectual property excluding patents is considered an indefinite-lived asset due to the fact that it is renewable in perpetuity. The patents were acquired and are being amortized over a weighted-average remaining useful life of approximately 4.2 years. As of January 31, 2023, future amortization expense for definite-lived intangible assets is estimated to be as follows (in thousands):
Year Ending January 31, |
2024 | $ | 80 |
2025 | 80 |
2026 | 80 |
2027 | 75 |
2028 | 11 |
Thereafter | 10 |
| $ | 336 |

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -URI https://asc.fasb.org/subtopic&trid=2144471 + Details
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