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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 The calculated average balance outstanding for the year for all Federal Home Loan Bank advances as of the Balance Sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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- Definition The calculated weighted average interest rate for Federal Home Loan Bank advances for the period ended as of the Balance Sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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- Definition The maximum balance outstanding at any month end during the period as of the Balance Sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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