Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Number of Major Source Manufacturers	1
Accounts Receivable, Allowance for Credit Loss	$ 3		$ 3
Inventory Valuation Reserves	229		264
Goodwill and Intangible Asset Impairment	0	$ 0
Business Combination, Contingent Consideration, Liability	0		$ 0
Impairment, Long-Lived Asset, Held-for-Use	$ 0	0
Payment for Product Supply Period (Day)	30 days
Advertising Expense	$ 200	$ 300
Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	7 years
Computer Equipment and Software [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Computer Equipment and Software [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Furniture and Fixtures [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Furniture and Fixtures [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	7 years
Revenue from Contract with Customer Benchmark [Member] \| Distributor Concentration Risk [Member] \| Avenova Spray [Member]
Concentration Risk, Percentage	74.00%	75.00%

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

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Amount of valuation reserve for inventory.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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