Securities Available For Sale - Summary of Temporarily Impaired Securities (Details)	6 Months Ended
	Jun. 30, 2017 USD ($)
Less Than 12 Months, Fair Value	$ 60,825,976
Less Than 12 Months, Unrealized Loss	(5,029,110)
12 Months or Longer, Fair Value	0
12 Months or Longer, Unrealized Loss	0
Preferred Stock [Member]
Less Than 12 Months, Fair Value	2,003,826
Less Than 12 Months, Unrealized Loss	(33,588)
12 Months or Longer, Fair Value	0
12 Months or Longer, Unrealized Loss	0
Common Stock [Member]
Less Than 12 Months, Fair Value	58,822,150
Less Than 12 Months, Unrealized Loss	(4,995,522)
12 Months or Longer, Fair Value	0
12 Months or Longer, Unrealized Loss	$ 0