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Nature of Operations, Segment Reporting and Geographical Information - Additional Information (Detail) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2022 USD ($) Segment | Jan. 31, 2021 USD ($) Segment | Jan. 31, 2020 Segment
Segment Reporting Information [Line Items] |  |  |
Number of reporting segments | Segment | 2 |  |
Customer accounted for greater than 10% of net sales | Segment | 10 | 10 | 10
Goodwill assigned | $ 12,156 | $ 12,806 |
T&M [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill assigned | 4,500 | 4,500 |
Product Identification [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill assigned | $ 7,600 | $ 8,300 |

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