Accumulated Other Comprehensive Loss (Reclassifications Out of Accumulated Other Comprehensive Loss) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior service cost included in net periodic pension cost	$ 4,367	$ 4,367
Amortization of net loss	165,884	123,098
Total other comprehensive income	170,251	127,465
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total other comprehensive income	170,251	127,465
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior service cost included in net periodic pension cost	4,367	4,367
Amortization of net loss	$ 165,884	$ 123,098