Quarterly Results Of Operations (Unaudited)

12 Months Ended

Dec. 31, 2012

Quarterly Results Of Operations (Unaudited) [Abstract]

Quarterly Results Of Operations (Unaudited)

(16)  Quarterly Results of Operations (unaudited)

2012 Quarter Ended

		Dec. 31		Sept. 30		June 30		March 31
Operating Revenue	$	74,483,455	$	62,675,511	$	58,631,729	$	71,180,773
Operating Expense		68,250,215		60,200,529		55,725,151		64,019,060
Net Interest		3,492,044		3,495,865		3,542,676		3,872,346
Net Operating Margins		2,741,196		(1,020,883)		(636,098)		3,289,367
Nonoperating Margins		632,775		261,487		123,962		133,701
Assignable Margins	$	3,373,971	$	(759,396)	$	(512,136)	$	3,423,068

2011 Quarter Ended

		Dec. 31		Sept. 30		June 30		March 31
Operating Revenue	$	76,828,268	$	68,778,352	$	68,517,526	$	69,494,223
Operating Expense		70,143,069		65,509,750		65,592,311		61,096,736
Net Interest		4,102,750		3,544,204		4,209,482		4,890,541
Net Operating Margins		2,582,449		(275,602)		(1,284,267)		3,506,946
Nonoperating Margins		628,697		161,595		120,363		133,081
Assignable Margins	$	3,211,146	$	(114,007)	$	(1,163,904)	$	3,640,027