Note 5 - Loans and Leases - Summary of Financing Receivables With Payment Default (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Principal Forgiveness [Member]
Modified, Subsequent Default	$ 0	$ 0
Principal Forgiveness [Member] | Commercial Portfolio Segment [Member] | Commercial [Member]
Modified, Subsequent Default	0
Principal Forgiveness [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Modified, Subsequent Default	0	0
Payment Deferral [Member]
Modified, Subsequent Default	335	0
Payment Deferral [Member] | Commercial Portfolio Segment [Member] | Commercial [Member]
Modified, Subsequent Default	50
Payment Deferral [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Modified, Subsequent Default	285	0
Extended Maturity [Member]
Modified, Subsequent Default	0	65
Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Commercial [Member]
Modified, Subsequent Default	0
Extended Maturity [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Modified, Subsequent Default	0	65
Contractual Interest Rate Reduction [Member]
Modified, Subsequent Default	0	0
Contractual Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member] | Commercial [Member]
Modified, Subsequent Default	0
Contractual Interest Rate Reduction [Member] | Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Modified, Subsequent Default	$ 0	$ 0