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Note 1 - Organization (Details Textual)
$ in Millions
12 Months Ended
Jan. 17, 2025
USD ($)
Dec. 31, 2024
Number of Reportable Segments   1
Avenova Assets [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Subsequent Event [Member]    
Proceeds from Sale of Productive Assets $ 10.5