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Note 10 - Deposits (Details) - Distribution of Deposit Accounts - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Demand accounts:    
Non-interest bearing checking $ 169,546,000 $ 147,544,000
Interest bearing checking 173,934,000 180,558,000
Money market 72,442,000 87,914,000
Savings accounts 135,369,668 117,932,606
Certificate accounts 260,030,000 254,331,000
Total deposits $ 811,322,227 $ 788,280,370