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Note 12 - Loss Per Share - Schedule of Antidilutive Securities (Details) - shares
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Share-Based Payment Arrangement, Option [Member]    
Antidilutive Securities (in shares) (in shares) 42,113 46,412
Warrant [Member]    
Antidilutive Securities (in shares) (in shares) 940,412 1,729,304
Series B Convertible Preferred Stock [Member]    
Antidilutive Securities (in shares) (in shares) 16 16