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Goodwill and Other Intangible Assets (Tables) | 9 Months Ended
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Oct. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets |
| Weighted Average Life at 10/31/2020 |  | October 31, 2020 |  | January 31, 2020
Gross Carrying Amount |  | Accumulated Amortization |  | Impairment |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Impairment |  | Net Carrying Amount
Goodwill |  |  | $ | 7,060 |  |  | $ | — |  |  | $ | (7,060) |  |  | $ | — |  |  | $ | 7,060 |  |  | $ | — |  |  | $ | (4,529) |  |  | $ | 2,531 |
Proprietary rights | 7.8 |  | $ | 7,430 |  |  | $ | (3,547) |  |  | $ | — |  |  | $ | 3,883 |  |  | $ | 9,247 |  |  | $ | (4,950) |  |  | $ | — |  |  | $ | 4,297 |
Customer relationships | 1.1 |  | 5,024 |  |  | (4,344) |  |  | — |  |  | 680 |  |  | 5,024 |  |  | (3,831) |  |  | — |  |  | 1,193 |
Patents | 3.8 |  | 2,440 |  |  | (1,463) |  |  | — |  |  | 977 |  |  | 2,440 |  |  | (1,277) |  |  | — |  |  | 1,163 |
Trade name | 5.6 |  | 894 |  |  | (72) |  |  | (760) |  |  | 62 |  |  | 894 |  |  | (63) |  |  | (760) |  |  | 71 |
Developed technology | 5.2 |  | 1,430 |  |  | (691) |  |  | — |  |  | 739 |  |  | 1,430 |  |  | (584) |  |  | — |  |  | 846 |
Other | 3.6 |  | 666 |  |  | (176) |  |  | — |  |  | 490 |  |  | 653 |  |  | (87) |  |  | — |  |  | 566 |
Amortizable intangible assets |  | $ | 17,884 |  |  | $ | (10,293) |  |  | $ | (760) |  |  | $ | 6,831 |  |  | $ | 19,688 |  |  | $ | (10,792) |  |  | $ | (760) |  |  | $ | 8,136 |
Future Estimated Amortization Expense Related to Amortizable Intangible Assets | As of October 31, 2020, future estimated amortization expense related to amortizable intangible assets was estimated to be (in thousands):
For fiscal years ending January 31 |
2021 | $ | 423 |
2022 | 1,232 |
2023 | 1,087 |
2024 | 1,003 |
2025 | 730 |
Thereafter | 2,356 |
Total | $ | 6,831 |

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