Quarterly report [Sections 13 or 15(d)]

Note 3 - Summary of Significant Accounting Policies - Summary of Antidilutive Securities (Details)

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Note 3 - Summary of Significant Accounting Policies - Summary of Antidilutive Securities (Details) - shares
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Antidilutive Securities (in shares) 79,909 28,187
Share-Based Payment Arrangement, Option [Member]    
Antidilutive Securities (in shares) 1,500 3,000
Restricted Stock [Member]    
Antidilutive Securities (in shares) 78,409 25,187