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Goodwill and Other Intangible Assets | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2021 | Jan. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Goodwill and Other Intangible Assets | 8. 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 |
As of January 31, 2021, the Company has recorded impairment expense equal to 100% of the gross carrying amount of goodwill. As a result, no further review of goodwill is required. On January 31, 2021, the Company completed an annual review of amortizable intangible assets. Based on a review of qualitative factors it was determined it was more likely than not that the fair market value of intangible assets was greater than its carrying value. During the six months ended July 31, 2021, there have been no substantive indicators of impairment. Aggregate amortization expense was $618,000 and $794,000 for the six months ended July 31, 2021 and 2020, respectively. 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 |
| 11. Goodwill and Other Intangible Assets Goodwill and other intangible assets from continuing operations consisted of the following:
|  | Weighted Average Life at 1/31/20 |  |  | January 31, 2021 |  |  | January 31, 2020 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Impairment |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Impairment |  |  | Net Carrying Amount |
|  |  |  |  | (in thousands) |  |  | (in thousands) |
Goodwill |  |  |  |  |  | $ | 7,060 |  |  | $ | — |  |  | $ | (7,060 | ) |  | $ | — |  |  | $ | 7,060 |  |  | $ | — |  |  | $ | (4,529 | ) |  | $ | 2,531 |
Proprietary rights |  |  | 7.2 |  |  | $ | 7,781 |  |  | $ | (3,688 | ) |  |  | — |  |  |  | 4,093 |  |  | $ | 9,247 |  |  | $ | (4,950 | ) |  |  | — |  |  |  | 4,297 |
Customer relationships |  |  | 0.8 |  |  |  | 5,024 |  |  |  | (4,513 | ) |  |  | — |  |  |  | 511 |  |  |  | 5,024 |  |  |  | (3,831 | ) |  |  | — |  |  |  | 1,193 |
Patents |  |  | 3.6 |  |  |  | 2,440 |  |  |  | (1,528 | ) |  |  | — |  |  |  | 912 |  |  |  | 2,440 |  |  |  | (1,277 | ) |  |  | — |  |  |  | 1,163 |
Trade name |  |  | 5.3 |  |  |  | 894 |  |  |  | (74 | ) |  |  | (760 | ) |  |  | 60 |  |  |  | 894 |  |  |  | (63 | ) |  |  | (760 | ) |  |  | 71 |
Developed technology |  |  | 4.9 |  |  |  | 1,430 |  |  |  | (727 | ) |  |  | — |  |  |  | 703 |  |  |  | 1,430 |  |  |  | (584 | ) |  |  | — |  |  |  | 846 |
Other |  |  | 3.4 |  |  |  | 684 |  |  |  | (213 | ) |  |  | — |  |  |  | 471 |  |  |  | 653 |  |  |  | (87 | ) |  |  | — |  |  |  | 566 |
Amortizable intangible assets |  |  |  |  |  | $ | 18,253 |  |  | $ | (10,743 | ) |  | $ | (760 | ) |  | $ | 6,750 |  |  | $ | 19,688 |  |  | $ | (10,792 | ) |  | $ | (760 | ) |  | $ | 8,136 |
As of January 31, 2021, the Company completed its annual review of intangible assets. Based on a review of qualitative factors it was determined it was more likely than not that the fair value of our Seamap reporting unit was greater than its carrying value. Based on a review of qualitative and quantitative factors it was determined it was more likely than not that the fair value of our Klein reporting unit was greater than its carrying value. Accordingly, we did not record an impairment charge related to intangible assets in the Seamap and Klein reporting units. Due to the economic impact of the global pandemic, the decline in oil prices during the three months ended April 30, 2020 and a decline in the market value of the Company’s equity securities, the Company performed a quantitative review of the Seamap reporting unit and concluded that goodwill had been impaired. As a result, the Company recorded an impairment expense of approximately $2.5 million related to goodwill in the Seamap reporting unit during the quarter ended April 30, 2020. As of January 31, 2020, the Company completed its annual review of goodwill and indefinite lived intangible assets. Based on a review of qualitative factors it was determined it was more likely than not that the fair value of our Seamap reporting unit was greater than its carrying value. Based on a review of qualitative and quantitative factors it was determined it was more likely than not that the fair value of our Klein reporting unit was not greater than its carrying value. Accordingly, we recorded an impairment of approximately $760,000 related to indefinite lived intangible assets in the Klein reporting unit. Aggregate amortization expense was $1.8 million, and $1.8 million for the fiscal years ended January 31, 2021 and 2020, respectively. As of January 31, 2021, future estimated amortization expense related to amortizable intangible assets is estimated to be (in thousands):
For fiscal year ending January 31: |  |  |  |
2022 |  | $ | 1,266 |
2023 |  |  | 1,125 |
2024 |  |  | 989 |
2025 |  |  | 828 |
2026 |  |  | 658 |
Thereafter |  |  | 1,884 |
Total |  | $ | 6,750 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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