Note 9 - Deposits (Details) - Interest Expense on Time Deposits - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest Expense on Time Deposits [Abstract]
Interest bearing demand	$ 1,406	$ 1,229	$ 1,017
Money market accounts	10,138	8,627	7,034
Saving accounts	901	802	374
Time deposits	39,443	35,111	31,964
Total	$ 51,888	$ 45,769	$ 40,389