Note 5 - Foreclosed Properties - Foreclosed Properties Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Other Real Estate Owned, balance at the beginning of the year	$ 5,657	$ 7,408
Valuation Allowance, balance at the beginning of the year	(420)	(422)
Balance at the beginning of the year, net	5,237	6,986
Other Real Estate Owned, Additions	481
Additions, Net	481
Valuation Allowance, Writedowns	(405)	(346)
Writedowns, Net	(405)	(346)
Other Real Estate Owned, Sales	(1,519)	(1,751)
Valuation Allowance, Sales		348
Sales, Net	(1,519)	(1,403)
Other Real Estate Owned, balance at the end of the year	4,619	5,657
Valuation Allowance, Balance at the end of the year	(825)	(420)
Balance at the end of the year, net	$ 3,794	$ 5,237