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Note 5 - Other Real Estate Owned (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Dec. 31, 2013
Disclosure Text Block [Abstract]      
Other Real Estate $ 12,031 $ 10,402 $ 15,502
Other Real Estate, Foreclosed Assets, and Repossessed Assets 1,890    
Mortgage Loans Collateralized by Residential Real Estate Property Foreclosure Amount $ 310