Employee Benefits and Retirement Plans - Amount Recognized in Consolidated Balance Sheet (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Compensation and Retirement Disclosure [Abstract]
Accrued Pension	$ 1,680,224	$ 2,098,116	$ 2,146,824
Deferred tax assets	571,276	713,359	729,920
Accumulated other comprehensive income	1,108,948	1,384,757	1,416,904
Total	1,680,224	2,098,116	2,146,824
Service cost	0	0	0
Interest cost on benefit obligation	709,226	692,641	718,393
Expected return on plan assets	(798,782)	(814,635)	(801,070)
Other - net	422,975	306,007	281,630
Net periodic pension cost	$ 333,419	$ 184,013	$ 198,953