Investment Securities (Details 3) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Gross proceeds	$ 20,231,265	$ 4,902,286	$ 20,231,265	$ 25,667,359
Gross realized gains	154,692	$ 97,714	154,692	$ 446,041
Gross realized losses	$ 108,872		$ 108,872