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Investment Securities - Schedule of Activity of Security Sales by Intention (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Investment Securities - Schedule Of Activity Of Security Sales By Intention        
Proceeds from sale of available-for-sale securities $ 0 $ 3,065,000 $ 0 $ 5,741,211
Gross gains on sale of available-for-sale securities 0 19,795 0 186,610
Gross losses on sale of available-for-sale securities 0 0 0 0
Net gains on sales of available for sale securities $ 0 $ 19,795 $ 0 $ 186,610