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Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2024 USD ($)	Mar. 31, 2024	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Number of Major Source Manufacturers				1
Accounts Receivable, Allowance for Credit Loss	$ 3			$ 3		$ 3
Inventory Valuation Reserves	204			204		264
Goodwill and Intangible Asset Impairment	0		$ 0	0	$ 0
Business Combination, Contingent Consideration, Liability	0			0		$ 0
Impairment, Long-Lived Asset, Held-for-Use	0		0	0	0
Payment for Product Supply Period		60 days
Advertising Expense	$ 200		$ 200	$ 400	$ 500
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	5 years			5 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	7 years			7 years
Computer Equipment and Software [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years			3 years
Computer Equipment and Software [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	5 years			5 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	5 years			5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	7 years			7 years
Revenue from Contract with Customer Benchmark [Member] | Distributor Concentration Risk [Member] | Avenova Spray [Member]
Concentration Risk, Percentage	74.00%		61.00%	74.00%	68.00%

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