v3.26.1
Note 6 - Capital Stock - Summary of Common Stock Outstanding (Details) - shares
 12 Months Ended
Dec. 31, 2025
Mar. 31, 2026
Less Treasury Shares: (in shares) (189) (189)
Common stock, outstanding (in shares) 3,327,210 3,327,210
Common Stock [Member]    
Issued Shares (in shares) 1,144,926  
Issuances from Preferred Stock conversions (in shares) 257,617  
Issued Shares (in shares) 3,327,399 3,327,399
Less Treasury Shares: (in shares)   (189)
Common stock, outstanding (in shares)   3,327,210
Common Stock [Member] | Common Warrants [Member]    
Issuances from Warrant exercises (in shares) 521,725  
Common Stock [Member] | Prefunded Warrants [Member]    
Issuances from Warrant exercises (in shares) 1,403,131