v3.26.1
Note 6 - Securities Sold Under Agreements to Repurchase - Securities Sold Under Agreement to Repurchase (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Securities sold under agreements to repurchase $ 217,470 $ 232,291
Average daily balance during the period 222,847 239,089
Maximum daily balance during the period $ 257,040 $ 285,679
Securities Sold under Agreements to Repurchase [Member]    
Average interest rate at end of period 2.68% 2.80%
Average interest rate during the period 2.68% 3.12%