v3.26.1
Note 6 - Allowance for Credit Losses - Summary of Modified Loans (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   $ 1,685
Modified in Period, to Total Financing Receivables, Percentage   0.40%
Principal Forgiveness [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   $ 0
Payment Deferral [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   0
Extended Maturity [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   267
Contractual Interest Rate Reduction [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   0
Extended Maturity and Payment Deferral [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   1,418
Commercial Portfolio Segment [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount $ 498 $ 963
Modified in Period, to Total Financing Receivables, Percentage 0.30% 1.10%
Commercial Portfolio Segment [Member] | Principal Forgiveness [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount $ 0 $ 0
Commercial Portfolio Segment [Member] | Payment Deferral [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount 0 0
Commercial Portfolio Segment [Member] | Extended Maturity [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount 498 97
Commercial Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount 0 0
Commercial Portfolio Segment [Member] | Extended Maturity and Payment Deferral [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount 0 866
Commercial Real Estate Portfolio Segment [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount $ 498 $ 290
Modified in Period, to Total Financing Receivables, Percentage 0.10% 0.10%
Commercial Real Estate Portfolio Segment [Member] | Principal Forgiveness [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount $ 0 $ 0
Commercial Real Estate Portfolio Segment [Member] | Payment Deferral [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount 0 0
Commercial Real Estate Portfolio Segment [Member] | Extended Maturity [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount 498 0
Commercial Real Estate Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount 0 0
Commercial Real Estate Portfolio Segment [Member] | Extended Maturity and Payment Deferral [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount $ 0 290
Residential Portfolio Segment [Member] | Real Estate Loan [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   $ 432
Modified in Period, to Total Financing Receivables, Percentage   0.40%
Residential Portfolio Segment [Member] | Principal Forgiveness [Member] | Real Estate Loan [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   $ 0
Residential Portfolio Segment [Member] | Payment Deferral [Member] | Real Estate Loan [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   0
Residential Portfolio Segment [Member] | Extended Maturity [Member] | Real Estate Loan [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   170
Residential Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member] | Real Estate Loan [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   0
Residential Portfolio Segment [Member] | Extended Maturity and Payment Deferral [Member] | Real Estate Loan [Member]    
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount   $ 262