Note 7 - Loans and Related Allowance for Credit Losses - Collateral-dependent Loans (Details) - USD ($) $ in Thousands		Mar. 31, 2025	Dec. 31, 2024
Loans	[1],[2]	$ 1,550,349	$ 1,519,614
Real Estate [Member]
Loans		32,766	29,403
Blanket Lien [Member]
Loans		0	0
Investment and Cash [Member]
Loans		0	0
Other Collateral [Member]
Loans		0	0
Collateral Pledged [Member]
Loans		32,766	29,403
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans	[1],[2]	185,412	181,447
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Real Estate [Member]
Loans		5,471	3,198
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Blanket Lien [Member]
Loans		0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Investment and Cash [Member]
Loans		0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Other Collateral [Member]
Loans		0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Collateral Pledged [Member]
Loans		5,471	3,198
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans	[1],[2]	413,621	412,291
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Real Estate [Member]
Loans		25,971	24,881
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		0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Collateral Pledged [Member]
Loans		25,971	24,881
Residential Portfolio Segment [Member]
Loans	[1],[2]	351,274	353,442
Residential Portfolio Segment [Member] | Real Estate [Member]
Loans		617	617
Residential Portfolio Segment [Member] | Blanket Lien [Member]
Loans		0	0
Residential Portfolio Segment [Member] | Investment and Cash [Member]
Loans		0	0
Residential Portfolio Segment [Member] | Other Collateral [Member]
Loans		0	0
Residential Portfolio Segment [Member] | Collateral Pledged [Member]
Loans		617	617
Commercial And Industrial [Member]
Loans	[1],[2]	235,547	229,034
Commercial And Industrial [Member] | Real Estate [Member]
Loans		214	214
Commercial And Industrial [Member] | Blanket Lien [Member]
Loans		0	0
Commercial And Industrial [Member] | Investment and Cash [Member]
Loans		0	0
Commercial And Industrial [Member] | Other Collateral [Member]
Loans		0	0
Commercial And Industrial [Member] | Collateral Pledged [Member]
Loans		214	214
Construction and Other [Member]
Loans	[1],[2]	122,653	103,608
Construction and Other [Member] | Real Estate [Member]
Loans		493	493
Construction and Other [Member] | Blanket Lien [Member]
Loans		0	0
Construction and Other [Member] | Investment and Cash [Member]
Loans		0	0
Construction and Other [Member] | Other Collateral [Member]
Loans		0	0
Construction and Other [Member] | Collateral Pledged [Member]
Loans		$ 493	$ 493

[1] Accrued interest of $5.5 million and $5.5 million at March 31, 2025 and December 31, 2024, respectively, is excluded from amortized cost and presented in "accrued interest receivable and other assets" on the Consolidated Balance Sheets.

[2] Unearned income, including net deferred loan fees and costs and unamortized premiums and discounts, totaled $7.7 million and $8.2 million at March 31, 2025 and December 31, 2024, respectively.