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Securities - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]      
Available-for-sale securities pledged as collateral $ 96,700,000 $ 96,700,000  
Proceeds from sale of available-for-sale securities 3,098,100 8,170,600 $ 7,304,409
Gains from sale of securities $ 98,100 $ 181,363 $ 52,255