v3.26.1
Note 6 - Components of Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance $ 187,398 $ 167,278 $ 184,908 $ 156,409
Balance 192,231 168,736 192,231 168,736
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance (43,517) (54,503) (40,964) (62,093)
Unrealized holding gain on available for sale securities, net of tax (654) 3,763 (3,207) 11,353
Reclassificationi adjustment, net of tax 5,174   5,174  
Balance (38,997) (50,740) (38,997) (50,740)
AOCI Attributable to Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance (42,227) (54,175) (39,674) (61,765)
Unrealized holding gain on available for sale securities, net of tax (654) 3,763 (3,207) 11,353
Reclassificationi adjustment, net of tax 5,174   5,174  
Balance (37,707) (50,412) (37,707) (50,412)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance 1,290 328 1,290 328
Unrealized holding gain on available for sale securities, net of tax 0 0 0 0
Reclassificationi adjustment, net of tax 0   0  
Balance $ 1,290 $ 328 $ 1,290 $ 328