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Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Jul. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets |
| Weighted Average Life at 7/31/2021 |  | July 31, 2021 |  | January 31, 2021
Gross Carrying Amount |  | Accumulated Amortization |  | Accumulated Impairment |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Impairment |  | Net Carrying Amount
Goodwill |  |  | $ | 7,060 |  |  | $ | — |  |  | $ | (7,060) |  |  | $ | — |  |  | $ | 7,060 |  |  | $ | — |  |  | $ | (7,060) |  |  | $ | — |
Proprietary rights | 6.4 |  | $ | 8,220 |  |  | $ | (3,920) |  |  | $ | — |  |  | $ | 4,300 |  |  | $ | 7,781 |  |  | $ | (3,688) |  |  | $ | — |  |  | $ | 4,093 |
Customer relationships | 0.4 |  | 5,024 |  |  | (4,748) |  |  | — |  |  | 276 |  |  | 5,024 |  |  | (4,513) |  |  | — |  |  | 511 |
Patents | 3.1 |  | 2,440 |  |  | (1,653) |  |  | — |  |  | 787 |  |  | 2,440 |  |  | (1,528) |  |  | — |  |  | 912 |
Trade name | 4.8 |  | 894 |  |  | (80) |  |  | (760) |  |  | 54 |  |  | 894 |  |  | (74) |  |  | (760) |  |  | 60 |
Developed technology | 4.4 |  | 1,430 |  |  | (798) |  |  | — |  |  | 632 |  |  | 1,430 |  |  | (727) |  |  | — |  |  | 703 |
Other | 2.8 |  | 684 |  |  | (278) |  |  | — |  |  | 406 |  |  | 684 |  |  | (213) |  |  | — |  |  | 471 |
Amortizable intangible assets |  | $ | 18,692 |  |  | $ | (11,477) |  |  | $ | (760) |  |  | $ | 6,455 |  |  | $ | 18,253 |  |  | $ | (10,743) |  |  | $ | (760) |  |  | $ | 6,750 |
Future Estimated Amortization Expense Related to Amortizable Intangible Assets | As of July 31, 2021, future estimated amortization expense related to amortizable intangible assets was estimated to be (in thousands):
For fiscal years ending January 31 |
2022 | $ | 588 |
2023 | 1,167 |
2024 | 1,032 |
2025 | 837 |
2026 | 700 |
Thereafter | 2,131 |
Total | $ | 6,455 |

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