Note 18 - Subsidiary Guarantees (Detail) - Condensed Consolidating Statement of Operations (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues	$ 98,404,232	$ 101,843,567	$ 104,400,219
Operating expenses	227,797,818	77,213,472	78,031,455
Income from operations	(129,393,586)	24,630,095	26,368,764
Other income (expense)	(22,373,820)	(22,182,748)	(25,068,240)
Income (loss) before income tax	(151,767,406)	2,447,347	1,300,524
	(24,867,841)	249,929	609,809
Net income (loss) to common stockholders	(126,899,565)	2,197,418	690,715
Parent [Member]
Revenues	3,317,930	3,289,457	3,493,053
Operating expenses	(5,350,563)	(3,289,457)	(3,493,053)
Income from operations	(2,032,633)
Other income (expense)	(22,336,942)	(21,825,630)	(24,856,925)
Earnings from subsidiaries	(127,397,831)	24,272,977	26,157,449
Income (loss) before income tax	(151,767,406)	2,447,347	1,300,524
	24,867,841	(249,929)	(609,809)
Net income (loss) to common stockholders	(126,899,565)	2,197,418	690,715
Guarantor Subsidiaries [Member]
Revenues	91,099,939	99,770,739	101,600,140
Operating expenses	(148,572,542)	(75,146,885)	(77,083,003)
Income from operations	(57,472,603)	24,623,854	24,517,137
Other income (expense)	(36,827)	(356,881)	(311,219)
Income (loss) before income tax	(57,509,430)	24,266,973	24,205,918
	(27,878,483)	(7,666,626)	(7,944,116)
Net income (loss) to common stockholders	(85,387,913)	16,600,347	16,261,802
Non-Guarantor Subsidiaries [Member]
Revenues	3,986,363	4,234,814	10,855,909
Operating expenses	(73,874,713)	(4,228,573)	(9,004,282)
Income from operations	(69,888,350)	6,241	1,851,627
Other income (expense)	(51)	(237)	99,904
Income (loss) before income tax	(69,888,401)	6,004	1,951,531
	27,878,483	(2,395)	(761,943)
Net income (loss) to common stockholders	(42,009,918)	3,609	1,189,588
Eliminations [Member]
Revenues		(5,451,443)	(11,548,883)
Operating expenses		5,451,443	11,548,883
Earnings from subsidiaries	127,397,831	(24,272,977)	(26,157,449)
Income (loss) before income tax	127,397,831	(24,272,977)	(26,157,449)
		7,669,021	8,706,059
Net income (loss) to common stockholders	127,397,831	(16,603,956)	(17,451,390)
Consolidated [Member]
Revenues	98,404,232	101,843,567	104,400,219
Operating expenses	(227,797,818)	(77,213,472)	(78,031,455)
Income from operations	(129,393,586)	24,630,095	26,368,764
Other income (expense)	(22,373,820)	(22,182,748)	(25,068,240)
Income (loss) before income tax	(151,767,406)	2,447,347	1,300,524
	24,867,841	(249,929)	(609,809)
Net income (loss) to common stockholders	$ (126,899,565)	$ 2,197,418	$ 690,715