Quarterly report [Sections 13 or 15(d)]

Note 7 - Employee and Director Benefits - Summary of Stock Option Activity (Details)

v3.26.3
Note 7 - Employee and Director Benefits - Summary of Stock Option Activity (Details) - Share-Based Payment Arrangement, Option [Member] - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Outstanding, shares (in shares) 97,000 160,900 160,900  
Outstanding, weighted average exercise price (in dollars per share) $ 15.96 $ 13.02 $ 13.02  
Outstanding, weighted average remaining contractual term (Year) 1 year 10 months 24 days 2 years 2 months 12 days 2 years 1 year 10 months 24 days
Outstanding, aggregate intrinsic value $ 1,006 $ 2,358 $ 1,933 $ 4,723
Exercised, shares (in shares) (44,000) (63,900)    
Exercised, weighted average exercise price (in dollars per share) $ 13.86 $ 8.55    
Exercised, weighted average remaining contractual term (Year) 1 year      
Exercised, aggregate intrinsic value $ 1,238 $ 2,027    
Forfeited, shares (in shares) (11,000)      
Forfeited, weighted average exercise price (in dollars per share) $ 16.38      
Forfeited, weighted average remaining contractual term (Year) 7 months 6 days      
Forfeited, aggregate intrinsic value $ 282      
Outstanding, shares (in shares) 42,000 97,000 97,000 160,900
Outstanding, weighted average exercise price (in dollars per share) $ 18.06 $ 15.96 $ 15.96 $ 13.02
Exercisable, shares (in shares) 42,000 97,000    
Exercisable, weighted average exercise price (in dollars per share) $ 18.06 $ 15.96    
Exercisable, weighted average remaining contractual term (Year) 1 year 10 months 24 days 2 years 2 months 12 days    
Exercisable, aggregate intrinsic value $ 1,006 $ 2,358