Note 2 - Impairments (Detail) - Carrying Amount of Goodwill (USD $)	3 Months Ended	9 Months Ended			1 Months Ended	9 Months Ended			1 Months Ended	9 Months Ended			1 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012		Dec. 31, 2010	Apr. 30, 2012 Alabama [Member]	Sep. 30, 2012 Alabama [Member]		Dec. 31, 2010 Alabama [Member]	Apr. 30, 2012 Missouri [Member]	Sep. 30, 2012 Missouri [Member]		Dec. 31, 2010 Missouri [Member]	Apr. 30, 2012 New England [Member]	Sep. 30, 2012 New England [Member]		Dec. 31, 2010 New England [Member]
Goodwill Gross		$ 188,954,840				$ 101,602,718				$ 17,829,122				$ 69,523,000
Accumulated impairment losses				0				0				0				0
Goodwill		188,954,840				101,602,718				17,829,122				69,523,000
Adjustment related to STC acquisition (1)		(344,256)	[1]				[1]				[1]			(344,256)	[1]
Impairment losses for the nine months ended September, 30 2012	344,256	(143,653,744)			(62,404,000)	(62,404,000)			(12,071,000)	(12,071,000)			(69,523,000)	(69,178,744)
Goodwill Gross	188,610,584	188,610,584				101,602,718				17,829,122				69,178,744
Accumulated impairment losses	(143,653,744)	(143,653,744)		0		(62,404,000)		0		(12,071,000)		0		(69,178,744)		0
Goodwill	$ 44,956,840	$ 44,956,840				$ 39,198,718				$ 5,758,122

[1] Third quarter 2012 adjustment related to the finalized purchase price allocation of the STC acquisition. See note 3, Acquisitions, below.