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Note 6 - Property and Equipment (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Depreciation | $ 40 | $ 51
Disposal Group, Including Discontinued Operation, Depreciation and Amortization | 0 | 0
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment | 0 | 0
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property | $ (25) | $ (68)
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration] | Net loss from discontinued operations | Net loss from discontinued operations
DERMAdoctor [Member] |  |
Impairment, Long-Lived Asset, Held-for-Use | $ 0 | $ 2

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