v3.26.1
Note 8 - Comprehensive Income - Accumulated Other Comprehensive (Loss) Income (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Balance $ 1,591,547 $ 1,573,340 $ 1,252,939 $ 1,241,704
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]        
Balance (48,156) (40,652)    
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]        
Balance 9,255 7,904    
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]        
Balance 852 852    
AOCI Attributable to Parent [Member]        
Balance $ (38,049) $ (31,896) $ (48,090) $ (47,846)