Quarterly report [Sections 13 or 15(d)]

Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities (Details)

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Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities (Details) - shares
9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Potentially dilutive shares (in shares) 7,611,279 1,681,564
Warrant [Member]    
Potentially dilutive shares (in shares) 0 0
Restricted Stock Units (RSUs) [Member]    
Potentially dilutive shares (in shares) 7,611,279 1,681,564