Note 6 - Other Real Estate Owned (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Balance $ 2,638 $ 1,147  
Additions 355 2,673  
Impairments (94) (89)
Sales (1,882) (1,093)  
Balance $ 1,017 $ 2,638 $ 1,147