Pension and Profit Sharing - Amounts Recognized in Other Comprehensive Income (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Balance at beginning of the year	$ 1,379,890	$ 1,279,751
Change in net loss	177,647	225,412
Amortization of actuarial loss	(122,352)	(116,118)
Amortization of prior service cost	(9,155)	(9,155)
Change recognized in other comprehensive income	46,140	100,139
Total recognized in other comprehensive income	1,426,030	1,379,890
Amounts recognized in accumulated other comprehensive income:
Net actuarial loss			$ 1,423,319	$ 1,368,025
Prior service cost			2,711	11,865
Total	$ 1,379,890	$ 1,279,751	$ 1,426,030	$ 1,379,890