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Note 7 - Other Real Estate Owned (Details Textual) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Residential Portfolio Segment [Member] | Real Estate Loan [Member]    
Repossessed Assets $ 0 $ 500
Consumer Portfolio Segment [Member]    
Mortgage Loans in Process of Foreclosure, Amount $ 9,900 $ 11,400