Note 7 - Loans and Related Allowance for Credit Losses - Collateral-dependent Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Loans	$ 1,497,704	$ 1,478,130
Real Estate [Member]
Loans	13,150	8,150
Blanket Lien [Member]
Loans	14,948	0
Investment and Cash [Member]
Loans	0	0
Other Collateral [Member]
Loans	9,253	0
Collateral Pledged [Member]
Loans	37,351	8,150
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member]
Loans	182,809	183,545
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member] \| Real Estate [Member]
Loans	4,562
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member] \| Blanket Lien [Member]
Loans	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member] \| Investment and Cash [Member]
Loans	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member] \| Other Collateral [Member]
Loans	0
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member] \| Collateral Pledged [Member]
Loans	4,562
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member]
Loans	385,648	401,580
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member] \| Real Estate [Member]
Loans	5,878	8,150
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member] \| Blanket Lien [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member] \| Investment and Cash [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member] \| Other Collateral [Member]
Loans	8,040	0
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member] \| Collateral Pledged [Member]
Loans	13,918	8,150
Commercial And Industrial [Member]
Loans	234,702	221,508
Commercial And Industrial [Member] \| Real Estate [Member]
Loans	0
Commercial And Industrial [Member] \| Blanket Lien [Member]
Loans	14,948
Commercial And Industrial [Member] \| Investment and Cash [Member]
Loans	0
Commercial And Industrial [Member] \| Other Collateral [Member]
Loans	1,213
Commercial And Industrial [Member] \| Collateral Pledged [Member]
Loans	16,161
Construction and Other [Member]
Loans	132,530	$ 125,105
Construction and Other [Member] \| Real Estate [Member]
Loans	2,710
Construction and Other [Member] \| Blanket Lien [Member]
Loans	0
Construction and Other [Member] \| Investment and Cash [Member]
Loans	0
Construction and Other [Member] \| Other Collateral [Member]
Loans	0
Construction and Other [Member] \| Collateral Pledged [Member]
Loans	$ 2,710