Investment Securities (Details 1) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Amortized Cost
Due in one year or less	$ 3,017,513	$ 3,343,347
Due in one year to five years	91,871,936	82,848,411
Due in five years to ten years	33,599,190	29,662,030
Due in ten years and over	3,552,859	5,088,827
Total	132,041,497	120,942,615
Estimated Fair Value
Due in one year or less	3,038,231	3,350,205
Due in one year to five years	92,428,862	82,682,901
Due in five years to ten years	33,748,377	29,169,228
Due in ten years and over	3,444,911	4,776,610
Total	$ 132,660,381	$ 119,978,944