Note 3 - Impairments (Detail) - Carrying amount of Goodwill (USD $)	12 Months Ended						12 Months Ended		1 Months Ended	12 Months Ended			12 Months Ended		1 Months Ended	12 Months Ended			12 Months Ended		1 Months Ended	12 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 Alabama [Member] Goodwill [Member]		Dec. 31, 2012 Alabama [Member] Goodwill [Member]	Dec. 31, 2011 Alabama [Member] Intangible Asset [Member]	Dec. 31, 2012 Alabama [Member] Intangible Asset [Member]	Apr. 30, 2012 Alabama [Member]	Dec. 31, 2011 Missouri [Member] Goodwill [Member]		Dec. 31, 2012 Missouri [Member] Goodwill [Member]	Dec. 31, 2011 Missouri [Member] Intangible Asset [Member]	Dec. 31, 2012 Missouri [Member] Intangible Asset [Member]	Apr. 30, 2012 Missouri [Member]	Dec. 31, 2011 New England [Member] Goodwill [Member]		Dec. 31, 2012 New England [Member] Goodwill [Member]	Dec. 31, 2011 New England [Member] Intangible Asset [Member]	Dec. 31, 2012 New England [Member] Intangible Asset [Member]	Apr. 30, 2012 New England [Member]	Dec. 31, 2011 Goodwill [Member]		Dec. 31, 2012 Goodwill [Member]	Dec. 31, 2011 Intangible Asset [Member]	Dec. 31, 2012 Intangible Asset [Member]
Goodwill gross						$ 101,602,718						$ 17,829,122						$ 69,178,744						$ 188,610,584
Accumulated impairment losses						(62,404,000)						(12,071,000)						(69,178,744)		(5,748,000)				(143,653,744)		(5,748,000)
Intangible asset adjusted cost basis								80,373						236,384						6,353,635						6,670,392
	6,670,392	20,545,691					128,441						356,384						20,060,866						20,545,691
Amortization	8,129,326	7,117,951	8,271,338				(48,068)						(120,000)						(7,959,231)						(8,127,299)
Goodwill	44,956,840	188,954,840		101,602,718		39,198,718				17,829,122		5,758,122				69,523,000						188,954,840		44,956,840
Intangible assets							128,441	80,373					356,384	236,384					20,060,866	12,101,635					20,545,691	12,418,392
Adjustment related to STC acquisition (1)					[1]						[1]					(344,256)	[1]					(344,256)	[1]
Impairment losses	143,653,744			(62,404,000)					62,404,000	(12,071,000)					12,071,000	(69,178,744)			(5,748,000)		69,523,000	(143,653,744)			(5,748,000)
Goodwill gross				$ 101,602,718		$ 101,602,718				$ 17,829,122		$ 17,829,122				$ 69,523,000		$ 69,178,744				$ 188,954,840		$ 188,610,584

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