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Note 13 - Derivative Financial Instruments - Offset Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Gross amount of recognized assets | $ 3,986 | $ 1,544
Gross amounts offset in the statements of financial condition |  |
Net amount of assets presented in the statement of financial condition | 3,986 | 1,544
Financial instruments |  |
Cash collateral received |  |
Net amount | 3,986 | 1,544
Interest Rate Swap [Member] |  |
Gross amount of recognized assets | 3,282 | 1,358
Gross amounts offset in the statements of financial condition |  |
Net amount of assets presented in the statement of financial condition | 3,282 | 1,358
Financial instruments |  |
Cash collateral received |  |
Net amount | 3,282 | 1,358
Loan Commitments [Member] |  |
Gross amount of recognized assets | 704 | 186
Gross amounts offset in the statements of financial condition |  |
Net amount of assets presented in the statement of financial condition | 704 | 186
Financial instruments |  |
Cash collateral received |  |
Net amount | $ 704 | $ 186

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