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Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Jul. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets |
| Weighted Average Life at 7/31/2020 |  | July 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 | 6.6 |  | $ | 9,265 |  |  | $ | (5,286) |  |  | $ | — |  |  | $ | 3,979 |  |  | $ | 9,247 |  |  | $ | (4,950) |  |  | $ | — |  |  | $ | 4,297 |
Customer relationships | 1.3 |  | 5,024 |  |  | (4,173) |  |  | — |  |  | 851 |  |  | 5,024 |  |  | (3,831) |  |  | — |  |  | 1,193 |
Patents | 4.0 |  | 2,440 |  |  | (1,401) |  |  | — |  |  | 1,039 |  |  | 2,440 |  |  | (1,277) |  |  | — |  |  | 1,163 |
Trade name | 5.8 |  | 894 |  |  | (69) |  |  | (760) |  |  | 65 |  |  | 894 |  |  | (63) |  |  | (760) |  |  | 71 |
Developed technology | 5.4 |  | 1,430 |  |  | (655) |  |  | — |  |  | 775 |  |  | 1,430 |  |  | (584) |  |  | — |  |  | 846 |
Other | 3.9 |  | 666 |  |  | (134) |  |  | — |  |  | 532 |  |  | 653 |  |  | (87) |  |  | — |  |  | 566 |
Amortizable intangible assets |  |  | $ | 19,719 |  |  | $ | (11,718) |  |  | $ | (760) |  |  | $ | 7,241 |  |  | $ | 19,688 |  |  | $ | (10,792) |  |  | $ | (760) |  |  | $ | 8,136 |
Future Estimated Amortization Expense Related to Amortizable Intangible Assets | As of July 31, 2020, future estimated amortization expense related to amortizable intangible assets was estimated to be (in thousands):
For fiscal years ending January 31 |
2021 | $ | 857 |
2022 | 1,163 |
2023 | 1,015 |
2024 | 931 |
2025 | 658 |
Thereafter | 2,617 |
Total | $ | 7,241 |

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