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Summary of Other Information Related to Stock Options (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2023 | Jan. 31, 2022 | Jan. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Net cash proceeds from the exercise of stock options | $ 376 | $ 3,290 | $ 495
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Intrinsic value of awards exercised | 23 | 1,156 | 187
Net cash proceeds from the exercise of stock options | $ 376 | $ 3,290 | $ 495

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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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