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Note 7 - Other Real Estate Owned (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Disclosure Text Block [Abstract]        
Other Real Estate $ 8,839,103 $ 10,401,832 $ 15,502,462 $ 15,940,693
Other Real Estate, Foreclosed Assets, and Repossessed Assets 1,033,000      
Mortgage Loans in Process of Foreclosure, Amount $ 159,372