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Note 7 - Other Real Estate Owned (Details) - Activity Within Other Real Estate Owned - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Activity Within Other Real Estate Owned [Abstract]        
Balance beginning of period $ 12,338 $ 8,809 $ 13,224 $ 9,225
Real estate acquired from borrowers 1,500 85 1,500 330
Valuation allowance   (51) (750) (505)
Properties sold (3,123)   (3,259) (207)
Balance end of period $ 10,715 $ 8,843 $ 10,715 $ 8,843