Note 6 - Borrowings and Subordinated Notes - Advances From the FHLB (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Subordinated notes, net of unamortized issuance costs	$ 19,667	$ 19,634
Line of credit, due March 31, 2022, interest rate	8.00%	6.75%
Line of credit, due March 29, 2024	$ 0	$ 0
Subordinated Debt [Member]
Subordinated notes, due May 15, 2031	3.75%	3.75%
Subordinated notes, net of unamortized issuance costs	$ 19,667	$ 19,634
Fix Rate Advance Due September 16, 2024 [Member]
Fixed-rate advance from FHLB, interest rate	4.55%	0.00%
Fixed-rate advance from FHLB	$ 5,000	$ 0
Fix Rate Advance Due March 17, 2025 [Member]
Fixed-rate advance from FHLB, interest rate	4.27%	0.00%
Fixed-rate advance from FHLB	$ 5,000	$ 0
Fix Rate Advance Due September 17, 2025 [Member]
Fixed-rate advance from FHLB, interest rate	4.20%	0.00%
Fixed-rate advance from FHLB	$ 5,000	$ 0
Fix Rate Advance Due March 17, 2026 [Member]
Fixed-rate advance from FHLB, interest rate	4.15%	0.00%
Fixed-rate advance from FHLB	$ 5,000	$ 0
Fix Rate Advance Due September 17, 2026 [Member]
Fixed-rate advance from FHLB, interest rate	4.06%	0.00%
Fixed-rate advance from FHLB	$ 5,000	$ 0

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Interest rate of advances made and reported by Federal Home Loan Bank (FHLBank).

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The effective interest rate at the end of the reporting period.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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