Note 14 - Commitments and Contingent Liabilities - Off-Balance Sheet Credit Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability	$ 290,512	$ 267,417
Commercial Loan [Member]
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability	7,881	28,111
Other Fixed Rate Loans [Member]
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability	21,613	15,349
Other Adjustable Rate Loans [Member]
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability	1,998	1,946
Fixed Rate Unused Lines of Credit [Member]
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability	10,403	21,532
Adjustable Rate Unused Lines of Credit [Member]
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability	231,046	184,056
Unused Overdraft Protection Amounts on Demand Accounts [Member]
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability	17,566	16,418
Standby Lines Of Credit [Member]
Fair Value Disclosure, off-Balance-Sheet Risks, Amount, Liability	$ 5	$ 5