Note 9 - Subsidiary Guarantees (Detail) - Condensed Consolidating Statement of Operations (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues	$ 24,427,896	$ 25,302,747	$ 74,515,910	$ 76,195,806
Operating expenses	17,940,522	19,178,593	209,472,826	57,424,331
Income loss from operations	6,487,374	6,124,154	(134,956,916)	18,771,475
Other income (expense)	(5,672,632)	(5,561,507)	(16,609,287)	(16,562,072)
Income loss before income tax	814,742	562,647	(151,566,203)	2,209,403
Income tax expense benefit	498,436	(322,815)	(24,690,134)	36,013
Net income loss to common stockholders	316,306	885,462	(126,876,069)	2,173,390
Parent [Member]
Revenues	841,514	789,508	2,599,694	2,356,860
Operating expenses	(1,431,456)	(789,507)	(3,550,820)	(2,356,860)
Income loss from operations	(589,942)	1	(951,126)
Other income (expense)	(5,661,522)	(5,471,374)	(16,573,909)	(16,324,377)
Earnings from subsidiaries	5,576,462	6,034,020	(112,205,864)	18,533,780
Income loss before income tax	(675,002)	562,647	(129,730,899)	2,209,403
Income tax expense benefit	991,308	322,815	2,854,830	(36,013)
Net income loss to common stockholders	316,306	885,462	(126,876,069)	2,173,390
Guarantor Subsidiaries [Member]
Revenues	22,547,158	24,680,968	68,846,718	74,334,212
Operating expenses	(15,763,985)	(19,228,795)	(132,824,424)	(57,121,439)
Income loss from operations	6,783,173	5,452,173	(63,977,706)	17,212,773
Other income (expense)	(11,103)	(90,130)	(35,331)	(240,685)
Income loss before income tax	6,772,070	5,362,043	(64,013,037)	16,972,088
Income tax expense benefit	(883,860)		9,919,744
Net income loss to common stockholders	5,888,210	5,362,043	(54,093,293)	16,972,088
Non-Guarantor Subsidiaries [Member]
Revenues	1,039,224	2,555,301	3,069,498	7,679,207
Operating expenses	(745,081)	(1,883,323)	(73,097,582)	(6,120,507)
Income loss from operations	294,143	671,978	(70,028,084)	1,558,700
Other income (expense)	(7)	(3)	(47)	2,990
Income loss before income tax	294,136	671,975	(70,028,131)	1,561,690
Income tax expense benefit	(605,884)		11,915,560
Net income loss to common stockholders	(311,748)	671,975	(58,112,571)	1,561,690
Eliminations [Member]
Revenues		(2,723,030)		(8,174,473)
Operating expenses		2,723,032		8,174,475
Income loss from operations		2		2
Earnings from subsidiaries	(5,576,462)	(6,034,020)	112,205,864	(18,533,780)
Income loss before income tax	(5,576,462)	(6,034,018)	112,205,864	(18,533,778)
Net income loss to common stockholders	(5,576,462)	(6,034,018)	112,205,864	(18,533,778)
Consolidated [Member]
Revenues	24,427,896	25,302,747	74,515,910	76,195,806
Operating expenses	(17,940,522)	(19,178,593)	(209,472,826)	(57,424,331)
Income loss from operations	6,487,374	6,124,154	(134,956,916)	18,771,475
Other income (expense)	(5,672,632)	(5,561,507)	(16,609,287)	(16,562,072)
Income loss before income tax	814,742	562,647	(151,566,203)	2,209,403
Income tax expense benefit	(498,436)	322,815	24,690,134	(36,013)
Net income loss to common stockholders	$ 316,306	$ 885,462	$ (126,876,069)	$ 2,173,390