v3.26.1
Note 4 - Allowance for Credit Losses on Loans - Schedule of Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Balance $ 22,261 $ 18,679 $ 18,679
Provision for credit losses on loans 1,433 0  
Charge-offs (3,171) 0  
Recoveries 415 43  
Balance 20,938 18,722 22,261
Commercial and Industrial Portfolio Segment [Member]      
Balance 15,612 10,170 10,170
Provision for credit losses on loans 1,000 776  
Charge-offs (3,171) 0 (1,523)
Recoveries 415 43  
Balance 13,856 10,989 15,612
Construction Portfolio Segment [Member]      
Balance 1,972 3,005 3,005
Provision for credit losses on loans 261 (183)  
Charge-offs 0 0 0
Recoveries 0 0  
Balance 2,233 2,822 1,972
Residential Portfolio Segment [Member]      
Balance 494 286 286
Provision for credit losses on loans 36 81  
Charge-offs 0 0 0
Recoveries 0 0  
Balance 530 367 494
Commercial Real Estate Portfolio Segment [Member]      
Balance 4,150 5,207 5,207
Provision for credit losses on loans 167 (684)  
Charge-offs 0 0 0
Recoveries 0 0  
Balance 4,317 4,523 4,150
Consumer Portfolio Segment [Member]      
Balance 33 11 11
Provision for credit losses on loans (31) 10  
Charge-offs 0 0 0
Recoveries 0 0  
Balance $ 2 $ 21 $ 33