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Note 7 - Other Real Estate Owned (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Dec. 31, 2014
Consumer Portfolio Segment [Member]      
Note 7 - Other Real Estate Owned (Details) [Line Items]      
Securities Received as Collateral, Amount Foreclosed $ 0 $ 0  
Mortgage Loans in Process of Foreclosure, Amount 13,900,000 13,900,000  
Residential Portfolio Segment [Member] | Real Estate Loan [Member]      
Note 7 - Other Real Estate Owned (Details) [Line Items]      
Repossessed Assets $ 0 $ 0 $ 1,300,000