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Note 11 - Debt - Maximum and Weighted Average Balances and Interest Rates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
FHLB advances and Fed Funds, maximum balance	$ 74,895	$ 260,828	$ 102,528
Fed Funds lines of credit with other financial institutions, maximum balance	0	0	0
FHLB advances and Fed Funds, average balance	33,945	102,008	55,602
Fed Funds lines of credit with other financial institutions, average balance	$ 11	$ 15	$ 11
FHLB advances and Fed Funds, weighted average interest rates	4.40%	2.98%	1.88%
Fed Funds lines of credit with other financial institutions, weighted average interest rates	5.62%	3.28%	0.49%
Subordinated Notes [Member]
Long term debt, weighted average interest rates	3.88%	3.75%	3.75%
Subordinated Notes [Member] | Maximum [Member]
Long term debt, maximum balance	$ 50,000	$ 50,000	$ 50,000
Subordinated Notes [Member] | Weighted Average [Member]
Long term debt, maximum balance	$ 50,000	$ 50,000	$ 44,699
PPP Liquidity Facilities [Member]
Long term debt, weighted average interest rates	0.00%	0.00%	0.35%
PPP Liquidity Facilities [Member] | Maximum [Member]
Long term debt, maximum balance	$ 0	$ 0	$ 59,349
PPP Liquidity Facilities [Member] | Weighted Average [Member]
Long term debt, maximum balance	0	0	7,310
Federal Reserve Bank, Fed Funds [Member]
FRB, maximum balance	0	0	0
FRB, average balance	$ 14,704	$ 548	$ 205
FRB, weighted average interest rates	5.42%	1.69%	0.25%
Federal Reserve Bank, Bank Term Funding Program [Member]
FRB, maximum balance	$ 90,000	$ 0	$ 0
FRB, average balance	$ 61,669	$ 0	$ 0
FRB, weighted average interest rates	4.71%	0.00%	0.00%

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- Definition

Weighted average interest rate of debt outstanding.

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The calculated average balance outstanding for the year for all Federal Home Loan Bank advances as of the Balance Sheet date.

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The maximum balance outstanding at any month end during the period as of the Balance Sheet date.

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Average amount borrowed under the credit facility during the period.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period.

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