Note 6 - Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands |
Apr. 30, 2026 |
Jan. 31, 2026 |
|---|---|---|
| Operating lease assets | $ 910 | $ 1,092 |
| Operating lease liabilities | 910 | 1,092 |
| Current liabilities | 655 | 686 |
| Non-current liabilities | $ 255 | $ 406 |
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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