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Note 13 - Commitments, Contingencies and Concentrations of Credit Risk - Summary of Off-balance Sheet Risk (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Fixed Income Interest Rate [Member] |  |
Off-balance sheet risk | $ 125,416 | $ 157,559
Variable Income Interest Rate [Member] |  |
Off-balance sheet risk | 1,052,226 | 1,009,420
Commitments to Extend Credit [Member] | Fixed Income Interest Rate [Member] |  |
Off-balance sheet risk | 100,430 | 96,690
Commitments to Extend Credit [Member] | Variable Income Interest Rate [Member] |  |
Off-balance sheet risk | 647,652 | 626,538
Home Equity Line of Credit [Member] | Fixed Income Interest Rate [Member] |  |
Off-balance sheet risk | 17 | 22
Home Equity Line of Credit [Member] | Variable Income Interest Rate [Member] |  |
Off-balance sheet risk | 41,349 | 48,764
Outstanding Commercial Mortgage Loan Commitments [Member] | Fixed Income Interest Rate [Member] |  |
Off-balance sheet risk | 24,139 | 60,039
Outstanding Commercial Mortgage Loan Commitments [Member] | Variable Income Interest Rate [Member] |  |
Off-balance sheet risk | 321,771 | 310,535
Standby Letters of Credit [Member] | Fixed Income Interest Rate [Member] |  |
Off-balance sheet risk | 190 | 163
Standby Letters of Credit [Member] | Variable Income Interest Rate [Member] |  |
Off-balance sheet risk | 41,276 | 23,399
Overdraft Protection Lines [Member] | Fixed Income Interest Rate [Member] |  |
Off-balance sheet risk | 640 | 645
Overdraft Protection Lines [Member] | Variable Income Interest Rate [Member] |  |
Off-balance sheet risk | $ 178 | $ 184

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- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 + Details
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