Note 8 - Stock-based Compensation - Restricted Stock Activity (Details) - Restricted Stock [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
6 Months Ended | |
|---|---|---|
Jul. 31, 2026 |
Jan. 31, 2026 |
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| Outstanding (in shares) | 160 | |
| Outstanding, weighted average price (in dollars per share) | $ 19.22 | |
| Outstanding, aggregate intrinsic value | $ 2,977 | $ 3,069 |
| Granted (in shares) | 59 | |
| Granted, weighted average price (in dollars per share) | $ 27.15 | |
| Vested and issued (in shares) | (74) | |
| Forfeited or retired (in shares) | (17) | |
| Outstanding (in shares) | 128 | |
| Outstanding, weighted average price (in dollars per share) | $ 23.25 |
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested and issued during the reporting period. No definition available.
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| X | ||||||||||
- Definition Number of shares related to Restricted Stock Award forfeited or retired for taxes during the period. No definition available.
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| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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