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Note 2 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

Schedule of Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Table Text Block]

		September 30,				December 31,
		2024				2023
Cash and cash equivalents		$	776			$	3,130
Cash and cash equivalents, discontinued operations			—				(206	)
Restricted cash included in other assets			477				476
Total cash, cash equivalents, and restricted cash in the condensed consolidated statements of cash flows		$	1,253			$	3,400

Disaggregation of Revenue [Table Text Block]

		Three Months Ended September 30,								Nine Months Ended September 30,
		2024				2023				2024				2023
Avenova Spray		$	2,170			$	2,064			$	6,391			$	5,759
NeutroPhase			—				—				—				1,043
Other products			254				407				1,044				1,524
Total product revenue, net			2,424				2,471				7,435				8,326
Other revenue, net			17				10				37				28
Total sales, net		$	2,441			$	2,481			$	7,472			$	8,354

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

		September 30,				December 31,
Major distribution partner		2024				2023
Major U.S. Retailer A			43	%			22	%
Avenova Spray Pharmacy Distributor A			31	%			14	%
Chongqing Pioneer Pharma Holdings Limited			*	%			36	%

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

		Balance at September 30,
		2024*				2023*
Common stock equivalent of Series B Non-Voting Convertible Preferred Stock (the “Series B Preferred Stock”)			15,065				135,300
Common stock equivalent of Series C Non-Voting Convertible Preferred Stock (the “Series C Preferred Stock”)			—				24,134
Stock options			6,893				4,240
Stock warrants			10,836,275				210,929
			10,858,233				374,603

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