Investment Securities - Schedule of Securities Held to Maturity (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Amortized Cost	$ 46,954,600	$ 54,602,535
Unrealized Gains	874,854	637,615
Unrealized Losses	17,608	117,077
Estimated Fair Value	47,811,846	55,123,073
State and Municipal Securities [Member]
Amortized Cost	43,580,427	50,435,624
Unrealized Gains	765,970	508,109
Unrealized Losses	17,608	117,077
Estimated Fair Value	44,328,789	50,826,656
Residential Mortgage-Backed Securities [Member]
Amortized Cost	3,374,173	4,166,911
Unrealized Gains	108,884	129,506
Unrealized Losses	0	0
Estimated Fair Value	$ 3,483,057	$ 4,296,417