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

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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