Other Real Estate Owned - Summary of Expenses Related to Other Real Estate Owned (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Real Estate [Abstract]
Net (gain) loss on sale of other real estate owned	$ (157,184)	$ 3,506	$ 178,214
Provision for unrealized losses	0	0
Operating expenses, net of rental income	14,000	30,000
Total	$ (143,000)	$ 34,000