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Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | $ 146,520 | $ 154,334
Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 146,520 | 154,334
US Government Agencies Debt Securities [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 21,629 | 22,896
US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 21,629 | 22,896
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 97,290 | 98,345
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 24,524 | 29,391
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 24,524 | 29,391
Mortgage-backed Securities, Issued by Private Enterprises [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 2,263 | 2,919
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 2,263 | 2,919
Debt Securities [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 145,706 | 153,551
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 145,706 | 153,551
Equity Securities in Financial Institutions [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 814 | 783
Equity Securities in Financial Institutions [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 814 | 783
Fair Value, Inputs, Level 2 [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 146,520 | 154,334
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 146,520 | 154,334
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 21,629 | 22,896
Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 97,290 | 98,345
Fair Value, Inputs, Level 2 [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 24,524 | 29,391
Fair Value, Inputs, Level 2 [Member] | Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 2,263 | 2,919
Fair Value, Inputs, Level 2 [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | 145,706 | 153,551
Fair Value, Inputs, Level 2 [Member] | Equity Securities in Financial Institutions [Member] | Fair Value, Measurements, Recurring [Member] |  |
Note 18 - Fair Value Measurements (Details) - Assets Measured on a Recurring Basis [Line Items] |  |
Investment securities available for sale, at fair value | $ 814 | $ 783

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