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Note 20 - Derivative Financial Instruments (Details Textual) - USD ($) $ in Millions | Mar. 31, 2026 | Dec. 31, 2025 | Aug. 06, 2024 | Aug. 07, 2023 | Feb. 06, 2023
--- | --- | --- | --- | --- | ---
Advance from Federal Home Loan Bank | $ 300.0 | $ 300.0 |  |  |
Three Month Advance Maturing May 2023 [Member] |  |  |  |  |
Advance from Federal Home Loan Bank |  |  |  |  | $ 100.0
Three Month Advance Maturing November 2023 [Member] |  |  |  |  |
Advance from Federal Home Loan Bank |  |  |  | $ 50.0 |
Three Month Advance Maturing November 2024 [Member] |  |  |  |  |
Advance from Federal Home Loan Bank | 300.0 |  | $ 100.0 |  |
Interest Rate Swap [Member] |  |  |  |  |
Derivative, Fair Value, Net | (1.6) |  |  |  |
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset | $ 5.0 |  |  |  |

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 + Details
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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + 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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- Definition Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-8 + Details
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