Note 16 - Fair Value of Financial Instruments - Schedule of Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available-for-sale, at fair value
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available-for-sale, at fair value	$ 129,936	$ 135,494
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available-for-sale, at fair value
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available-for-sale, at fair value	$ 129,936	$ 135,494
Residential Mortgage Backed Securities [Member]
Investment securities available-for-sale, at fair value	$ 129,936	$ 135,494
Commercial Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available-for-sale, at fair value
Commercial Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available-for-sale, at fair value	$ 51,740	$ 45,509
Commercial Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available-for-sale, at fair value
Commercial Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available-for-sale, at fair value	$ 51,740	$ 45,509
Commercial Mortgage Backed Securities [Member]
Investment securities available-for-sale, at fair value	$ 51,740	$ 45,509
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available-for-sale, at fair value
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available-for-sale, at fair value	$ 14,970	$ 14,998
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available-for-sale, at fair value
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available-for-sale, at fair value	$ 14,970	$ 14,998
US States and Political Subdivisions Debt Securities [Member]
Investment securities available-for-sale, at fair value	$ 14,970	$ 14,998
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available-for-sale, at fair value
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available-for-sale, at fair value	$ 1,996	$ 1,982
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available-for-sale, at fair value
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available-for-sale, at fair value	$ 1,996	$ 1,982
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available-for-sale, at fair value
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available-for-sale, at fair value	$ 766	$ 780
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available-for-sale, at fair value
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available-for-sale, at fair value	$ 766	$ 780
Corporate Debt Securities [Member]
Investment securities available-for-sale, at fair value	$ 766	$ 780
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available-for-sale, at fair value
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available-for-sale, at fair value	$ 80	$ 80
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available-for-sale, at fair value
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available-for-sale, at fair value	$ 80	$ 80
US Treasury Securities [Member]
Investment securities available-for-sale, at fair value	80	$ 80
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other Assets [Member]
Other assets – derivatives
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Assets [Member]
Other assets – derivatives		$ 3
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other Assets [Member]
Other assets – derivatives
Fair Value, Measurements, Recurring [Member] | Other Assets [Member]
Other assets – derivatives		$ 3
Investment securities available-for-sale, at fair value	$ 199,488	$ 198,843