Note 7 - Other Real Estate Owned - Foreclosed Property Activity (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
FUSB [Member]
Beginning balance	$ 5,327	$ 6,997
Transfers from loans	255	1,439
Sales proceeds	(655)	(2,225)
Gross gains		4
Gross losses	(40)	(210)
Net gains (losses)	(40)	(206)
Impairment		(44)
Ending balance	4,887	5,961
ALC [Member]
Beginning balance	711	738
Transfers from loans	149	263
Sales proceeds	(259)	(144)
Gross gains	27
Gross losses	(73)	(73)
Net gains (losses)	(46)	(73)
Impairment	(51)	(89)
Ending balance	504	695
Beginning balance	6,038	7,735
Transfers from loans	404	1,702
Sales proceeds	(914)	(2,369)
Gross gains	27	4
Gross losses	(113)	(283)
Net gains (losses)	(86)	(279)
Impairment	(51)	(133)
Ending balance	$ 5,391	$ 6,656