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Note 14 - Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Available-for-sale debt securities | $ 115,537 | $ 153,116 | [1]
Derivative liabilities | 302 |  |
Debt securities available for sale | 115,537 | 153,116 | [1]
Derivative assets |  | 12 |
Fair Value, Recurring [Member] |  |  |
Available-for-sale debt securities | 115,537 | 153,116 |
Equity securities | 55 | 55 |
Fair value loans | 4,875 | 5,412 |
Deferred compensation assets | 3,850 | 3,527 |
Deferred compensation liabilities | 3,850 | 3,527 |
Derivative liabilities | 302 |  |
Debt securities available for sale | 115,537 | 153,116 |
Derivative assets |  | 12 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Available-for-sale debt securities |  |  |
Equity securities | 55 | 55 |
Fair value loans |  |  |
Deferred compensation assets | 3,850 | 3,527 |
Deferred compensation liabilities | 3,850 | 3,527 |
Derivative liabilities |  |  |
Debt securities available for sale |  |  |
Derivative assets |  |  |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Available-for-sale debt securities | 115,537 | 153,116 |
Equity securities |  |  |
Fair value loans |  |  |
Deferred compensation assets |  |  |
Deferred compensation liabilities |  |  |
Derivative liabilities | 302 |  |
Debt securities available for sale | 115,537 | 153,116 |
Derivative assets |  | 12 |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Available-for-sale debt securities |  |  |
Equity securities |  |  |
Fair value loans | 4,875 | 5,412 |
Deferred compensation assets |  |  |
Deferred compensation liabilities |  |  |
Derivative liabilities |  |  |
Debt securities available for sale |  |  |
Derivative assets |  |  |
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] |  |  |
Available-for-sale debt securities | 1,016 | 1,113 |
Debt securities available for sale | 1,016 | 1,113 |
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Available-for-sale debt securities |  |  |
Debt securities available for sale |  |  |
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Available-for-sale debt securities | 1,016 | 1,113 |
Debt securities available for sale | 1,016 | 1,113 |
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Available-for-sale debt securities |  |  |
Debt securities available for sale |  |  |
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] |  |  |
Available-for-sale debt securities | 79,548 | 97,289 |
Debt securities available for sale | 79,548 | 97,289 |
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Available-for-sale debt securities |  |  |
Debt securities available for sale |  |  |
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Available-for-sale debt securities | 79,548 | 97,289 |
Debt securities available for sale | 79,548 | 97,289 |
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Available-for-sale debt securities |  |  |
Debt securities available for sale |  |  |
Fair Value, Recurring [Member] | US Treasury Securities [Member] |  |  |
Available-for-sale debt securities |  | 19,960 |
Debt securities available for sale |  | 19,960 |
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Available-for-sale debt securities |  |  |
Debt securities available for sale |  |  |
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Available-for-sale debt securities |  | 19,960 |
Debt securities available for sale |  | 19,960 |
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Available-for-sale debt securities |  |  |
Debt securities available for sale |  |  |
Fair Value, Recurring [Member] | Mortgage-backed Agency Securities [Member] |  |  |
Available-for-sale debt securities | 34,973 | 34,754 |
Debt securities available for sale | 34,973 | 34,754 |
Fair Value, Recurring [Member] | Mortgage-backed Agency Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Available-for-sale debt securities |  |  |
Debt securities available for sale |  |  |
Fair Value, Recurring [Member] | Mortgage-backed Agency Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Available-for-sale debt securities | 34,973 | 34,754 |
Debt securities available for sale | 34,973 | 34,754 |
Fair Value, Recurring [Member] | Mortgage-backed Agency Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Available-for-sale debt securities |  |  |
Debt securities available for sale |  |  |
[1] | Derived from audited financial statements

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