Employee Benefits and Retirement Plans - Amounts Recognized in Comprehensive Income (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]
Net loss (gain)	$ (55,700)	$ (191,451)	$ (417,892)
Prior service costs	0	0	0
Total recognized in other comprehensive income (loss)	(55,700)	(191,451)	(417,892)
Net periodic pension cost	266,073	301,718	333,419
Total recognized in net periodic pension cost and other comprehensive income (loss)	$ 210,373	$ 110,267	$ (84,473)