v3.26.1
Note 4 - Allowance for Credit Losses on Loans - Modified Loans (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Modified in period $ 5,388 $ 4,509 $ 13,818 $ 30,571
Modified in period, percentage 0.24% 0.24% 0.62% 1.60%
Commercial and Industrial Portfolio Segment [Member]        
Modified in period $ 5,388 $ 0 $ 11,433 $ 2,295
Modified in period, percentage 0.48% 0.00% 1.03% 0.27%
Construction Portfolio Segment [Member]        
Modified in period $ 0 $ 4,509 $ 2,385 $ 28,276
Modified in period, percentage 0.00% 2.19% 1.45% 13.76%
Residential Portfolio Segment [Member]        
Modified in period $ 0 $ 0 $ 0 $ 0
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Commercial Real Estate Portfolio Segment [Member]        
Modified in period $ 0 $ 0 $ 0 $ 0
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Consumer Portfolio Segment [Member]        
Modified in period $ 0 $ 0 $ 0 $ 0
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Principal Forgiveness [Member]        
Modified in period $ 0 $ 0 $ 0 $ 0
Principal Forgiveness [Member] | Commercial and Industrial Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness [Member] | Construction Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness [Member] | Residential Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness [Member] | Commercial Real Estate Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness [Member] | Consumer Portfolio Segment [Member]        
Modified in period 0 0 0 0
Payment Deferral [Member]        
Modified in period 567 0 567 0
Payment Deferral [Member] | Commercial and Industrial Portfolio Segment [Member]        
Modified in period 567 0 567 0
Payment Deferral [Member] | Construction Portfolio Segment [Member]        
Modified in period 0 0 0 0
Payment Deferral [Member] | Residential Portfolio Segment [Member]        
Modified in period 0 0 0 0
Payment Deferral [Member] | Commercial Real Estate Portfolio Segment [Member]        
Modified in period 0 0 0 0
Payment Deferral [Member] | Consumer Portfolio Segment [Member]        
Modified in period $ 0 $ 0 $ 0 $ 0
Interest Rate Below Market Reduction [Member]        
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Interest Rate Below Market Reduction [Member] | Commercial and Industrial Portfolio Segment [Member]        
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Interest Rate Below Market Reduction [Member] | Construction Portfolio Segment [Member]        
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Interest Rate Below Market Reduction [Member] | Residential Portfolio Segment [Member]        
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Interest Rate Below Market Reduction [Member] | Commercial Real Estate Portfolio Segment [Member]        
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Interest Rate Below Market Reduction [Member] | Consumer Portfolio Segment [Member]        
Modified in period, percentage 0.00% 0.00% 0.00% 0.00%
Extended Maturity [Member]        
Modified in period $ 1,221 $ 4,509 $ 9,651 $ 30,571
Term extension (Month) 1 month 3 months 9 months 2 months 12 days
Extended Maturity [Member] | Commercial and Industrial Portfolio Segment [Member]        
Modified in period $ 1,221 $ 0 $ 7,266 $ 2,295
Term extension (Month) 1 month   10 months 3 days  
Extended Maturity [Member] | Construction Portfolio Segment [Member]        
Modified in period $ 0 $ 4,509 $ 2,385 $ 28,276
Term extension (Month)   3 months 6 months 2 months 12 days
Extended Maturity [Member] | Residential Portfolio Segment [Member]        
Modified in period 0 $ 0 $ 0 $ 0
Extended Maturity [Member] | Commercial Real Estate Portfolio Segment [Member]        
Modified in period 0 0 0 0
Extended Maturity [Member] | Consumer Portfolio Segment [Member]        
Modified in period 0 0 0 0
Payment Delay and Extended Maturity [Member]        
Modified in period 4,167 0 4,167 0
Payment Delay and Extended Maturity [Member] | Commercial and Industrial Portfolio Segment [Member]        
Modified in period 4,167 0 4,167 0
Payment Delay and Extended Maturity [Member] | Construction Portfolio Segment [Member]        
Modified in period 0 0 0 0
Payment Delay and Extended Maturity [Member] | Residential Portfolio Segment [Member]        
Modified in period 0 0 0 0
Payment Delay and Extended Maturity [Member] | Commercial Real Estate Portfolio Segment [Member]        
Modified in period 0 0 0 0
Payment Delay and Extended Maturity [Member] | Consumer Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest rate Reduction and Payment Delay [Member]        
Modified in period 0 0 0 0
Interest rate Reduction and Payment Delay [Member] | Commercial and Industrial Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest rate Reduction and Payment Delay [Member] | Construction Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest rate Reduction and Payment Delay [Member] | Residential Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest rate Reduction and Payment Delay [Member] | Commercial Real Estate Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest rate Reduction and Payment Delay [Member] | Consumer Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest Rate Reduction, Payment Delay, and Term Extension [Member]        
Modified in period 0 0 0 0
Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Commercial and Industrial Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Construction Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Residential Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Commercial Real Estate Portfolio Segment [Member]        
Modified in period 0 0 0 0
Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Consumer Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness, Interest Rate Reduction, Payment Delay, and Term Extension [Member]        
Modified in period 0 0 0 0
Principal Forgiveness, Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Commercial and Industrial Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness, Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Construction Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness, Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Residential Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness, Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Commercial Real Estate Portfolio Segment [Member]        
Modified in period 0 0 0 0
Principal Forgiveness, Interest Rate Reduction, Payment Delay, and Term Extension [Member] | Consumer Portfolio Segment [Member]        
Modified in period $ 0 $ 0 $ 0 $ 0