Note 11 - Advances from the Federal Home Loan Bank (Details) - Contractual Maturities and Average Effective Rates of Outstanding Advances - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Contractual Maturities and Average Effective Rates of Outstanding Advances [Abstract]
		$ 30,000
		2.30%
	$ 30,000
	0.55%
	$ 1,838	$ 1,885
	2.23%	2.23%
	$ 429	$ 497
	2.12%	2.12%
	$ 2,865	$ 3,064
	2.36%	2.36%
	$ 6,991
	2.44%
	$ 1,345	$ 1,386
	1.48%	1.47%
	$ 43,468	$ 36,832
	1.09%	2.27%