STATEMENTS OF OPERATIONS AND ACCUMULATED EARNINGS (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Revenues	$ 7,318,230	$ 6,472,504	$ 17,322,422	$ 16,188,532
Costs and expenses:
Operating costs	6,106,892	5,107,452	13,194,547	11,526,155
Sales and marketing	501,751	317,014	1,107,445	761,226
General and administrative	728,520	756,462	1,547,283	1,545,198
Depreciation	460,270	460,570	929,886	921,043
Total costs and expenses	7,797,433	6,641,498	16,779,161	14,753,622
Net operating (loss) income before other income (expenses)	(479,203)	(168,994)	543,261	1,434,910
Other (expenses) income
Other income	4,643	4,688	67,036	38,850
Interest expense	(45,102)	(68,602)	(90,764)	(115,824)
Total other expenses	(40,459)	(63,914)	(23,728)	(76,974)
Net (loss) income	(519,662)	(232,908)	519,533	1,357,936
Retained earnings at beginning of period	5,875,149	7,249,882	4,835,954	5,659,038
Retained earnings at end of period	$ 5,355,487	$ 7,016,974	$ 5,355,487	$ 7,016,974