Accumulated Other Comprehensive Loss (Summary Of Changes In Accumulated Other Comprehensive Loss) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (853,177)	$ (2,081,606)	$ (861,911)	$ (2,422,109)
Amounts reclassified from AOCL	4,366	170,251	13,100	510,754
Balance at end of period	(848,811)	(1,911,355)	(848,811)	(1,911,355)
Prior Service Cost [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(8,733)	(26,201)	(17,467)	(34,936)
Amounts reclassified from AOCL	4,366	4,367	13,100	13,102
Balance at end of period	(4,367)	(21,834)	(4,367)	(21,834)
Net Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(844,444)	(2,055,405)	(844,444)	(2,387,173)
Amounts reclassified from AOCL		165,884		497,652
Balance at end of period	$ (844,444)	$ (1,889,521)	$ (844,444)	$ (1,889,521)