Note 6 - Commitments and Contingencies (Details Textual) $ in Thousands |
9 Months Ended |
|---|---|
|
Oct. 31, 2025
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 The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|