Note 5 - Foreclosed Properties (Details) - Foreclosed Properties Valuation Allowance - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Foreclosed Properties Valuation Allowance [Abstract]
Other real estate owned, beginning balance	$ 7,408	$ 9,078
Other real estate owned, valuation allowance, beginning balance	(422)	(935)
Other real estate owned, net, beginning balance	6,986	8,143
Other real estate owned, ending balance	5,657	7,408
Other real estate owned, valuation allowance, ending balance	(420)	(422)
Other real estate owned, net, ending balance	5,237	6,986
Other real estate owned, additions		1,520
Other real estate owned, additions, net		1,520
Other real estate owned, valuation allowance, writedowns	(346)
Other real estate owned, writedowns, net	(346)
Other real estate owned, sales	(1,751)	(1,618)
Other real estate owned, valuation allowance, sales	348	422
Other real estate owned, sales, net	$ (1,403)	(1,196)
Transfer to fixed assets		(1,572)
Transfer to fixed assets		91
Transfer to fixed assets		$ (1,481)