Note 14 - Fair Value Measurements - Reconciliation of Level 3 Instruments (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended |
|---|---|---|
Jul. 31, 2023 |
Jul. 31, 2023 |
|
| Balance as of beginning-of-period | $ 1,902 | $ 4,754 |
| Unrealized gains | (793) | (3,645) |
| Balance as of July 31, 2023 | $ 1,109 | $ 1,109 |
| X | ||||||||||
- Definition Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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