Note 7 - Commitments and Contingencies (Details Textual) $ in Thousands |
6 Months Ended |
|---|---|
|
Jul. 31, 2026
USD ($)
| |
| Legal Proceedings and Claims [Member] | |
| Loss Contingency Accrual | $ 0 |
| Indemnifications or Commitments [Member] | |
| Loss Contingency Accrual | 0 |
| Loss Contingency, Loss in Period | $ 0 |
| X | ||||||||||
- Definition Amount of loss contingency liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of loss (reversal of loss) recognized for loss contingency liability. Includes, but is not limited to, effect of revision in previously reported estimate. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|