Note 4 - Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Purchase Price Allocation [Table Text Block]

	October 14, 2011
Cash	$	237,850
Other current assets		552,331
Property and equipment		4,529,760
Intangible assets		1,729,600
Goodwill		420,505
Current liabilities		(332,710	)
Deferred income tax liabilities		(1,889,202	)
Purchase price	$	5,248,134

Business Acquisition, Pro Forma Information [Table Text Block]

	Unaudited 2010		Unaudited 2011
Revenue	$	106,812,024	$	103,707,313
Income from operations	$	26,422,934	$	24,705,377
Net income	$	722,165	$	1,935,327
Net income per common share	$	0.05	$	0.15