Note 3 - Loans (Details) - Acquired Impaired Loans - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Acquired Impaired Loans [Abstract]
Accretable discount	$ 62	$ 137
Non- accretable discount	266	369
Accretion	(53)	(75)
Non- accretable discount, accretion	(74)	(103)
Accretable discount	9	62
Non- accretable discount	$ 192	$ 266