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Intangible Assets (Tables) | 3 Months Ended
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Apr. 30, 2019
Intangible Assets Net Excluding Goodwill [Abstract] |
Schedule of Carrying Value of Intangible Assets Other than Goodwill | The gross value, accumulated amortization and carrying values of intangible assets were as follows (in thousands):
|  | As of April 30, 2019 |  |  | As of January 31, 2019 |
|  | Gross Value |  |  | Accumulated Amortization |  |  | Carrying Value |  |  | Gross Value |  |  | Accumulated Amortization |  |  | Carrying Value |
Developed technology |  | $ | 2,716 |  |  | $ | (1,257 | ) |  | $ | 1,459 |  |  | $ | 2,716 |  |  | $ | (1,121 | ) |  | $ | 1,595 |
Customer relationships |  |  | 902 |  |  |  | (203 | ) |  |  | 699 |  |  |  | 902 |  |  |  | (157 | ) |  |  | 745 |
Trade name |  |  | 451 |  |  |  | (189 | ) |  |  | 262 |  |  |  | 451 |  |  |  | (166 | ) |  |  | 285 |
Patents and licenses |  |  | 714 |  |  |  | (706 | ) |  |  | 8 |  |  |  | 714 |  |  |  | (704 | ) |  |  | 10 |
Total intangible assets |  | $ | 4,783 |  |  | $ | (2,355 | ) |  | $ | 2,428 |  |  | $ | 4,783 |  |  | $ | (2,148 | ) |  | $ | 2,635 |
Schedule of Estimated Future Amortization Expense | At April 30, 2019, the estimated future amortization expense for intangible assets was as follows (in thousands):
Fiscal Years Ending January 31, |  | Total |
2020 - remainder of fiscal year |  | $ | 484 |
2021 |  |  | 642 |
2022 |  |  | 638 |
2023 |  |  | 612 |
2024 |  |  | 52 |
Total |  | $ | 2,428 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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