v3.26.1
Note 6 - Loans and the Allowance for Credit Losses - Impairment Evaluation on Loans and Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Individually analyzed, allowance for credit loss $ 501 $ 439    
Collectively evaluated, allowance for credit loss 115,108 111,843    
Less: Allowance for credit losses - loans 153,056 154,305 $ 82,403 $ 82,685
Individually analyzed, gross loans 39,619 44,213    
Collectively evaluated, gross loans 11,491,853 11,192,215    
Gross loans 11,739,093 11,457,558    
Financial Asset Acquired with Credit Deterioration [Member]        
Individually analyzed, allowance for credit loss   42,023    
Acquired with deteriorated credit quality 37,447      
Gross loans 207,621 221,130    
Commercial Portfolio Segment [Member]        
Individually analyzed, allowance for credit loss 314 314    
Collectively evaluated, allowance for credit loss 15,291 15,392    
Less: Allowance for credit losses - loans 16,189 15,358 18,031 18,278
Individually analyzed, gross loans 11,885 12,184    
Collectively evaluated, gross loans 1,628,334 1,548,381    
Gross loans 1,644,836 1,565,963    
Commercial Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]        
Acquired with deteriorated credit quality 584      
Gross loans 4,617 5,398    
Acquired with deteriorated credit quality   (348)    
Commercial Real Estate Portfolio Segment [Member]        
Individually analyzed, allowance for credit loss 187 125    
Collectively evaluated, allowance for credit loss 82,865 79,046    
Less: Allowance for credit losses - loans 119,800 121,427 54,586 54,777
Individually analyzed, gross loans 24,522 28,354    
Collectively evaluated, gross loans 8,093,175 7,812,572    
Gross loans 8,318,844 8,054,696    
Commercial Real Estate Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]        
Individually analyzed, allowance for credit loss   42,256    
Acquired with deteriorated credit quality 36,748      
Gross loans 201,147 213,770    
Commercial Construction Portfolio Segment [Member]        
Individually analyzed, allowance for credit loss 0 0    
Collectively evaluated, allowance for credit loss 4,680 5,303    
Less: Allowance for credit losses - loans 4,680 5,303 5,030 5,064
Individually analyzed, gross loans 0 0    
Collectively evaluated, gross loans 571,073 623,902    
Gross loans 571,073 623,902    
Commercial Construction Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]        
Individually analyzed, allowance for credit loss   0    
Acquired with deteriorated credit quality 0      
Gross loans 0 0    
Residential Portfolio Segment [Member]        
Individually analyzed, allowance for credit loss 0 0    
Collectively evaluated, allowance for credit loss 12,253 12,084    
Less: Allowance for credit losses - loans 12,368 12,199 4,752 4,561
Individually analyzed, gross loans 3,212 3,675    
Collectively evaluated, gross loans 1,197,470 1,205,343    
Gross loans 1,202,539 1,210,980    
Residential Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]        
Individually analyzed, allowance for credit loss   115    
Acquired with deteriorated credit quality 115      
Gross loans 1,857 1,962    
Consumer Portfolio Segment [Member]        
Individually analyzed, allowance for credit loss 0 0    
Collectively evaluated, allowance for credit loss 19 18    
Less: Allowance for credit losses - loans 19 18 $ 4 $ 5
Individually analyzed, gross loans 0 0    
Collectively evaluated, gross loans 1,801 2,017    
Gross loans 1,801 2,017    
Consumer Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member]        
Individually analyzed, allowance for credit loss   0    
Acquired with deteriorated credit quality 0      
Gross loans $ 0 $ 0