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Note 18 - Subsidiary Guarantees (Detail) - Condensed Consolidating Statements of Cash Flows (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
Parent [Member]
Dec. 31, 2011
Parent [Member]
Dec. 31, 2010
Parent [Member]
Dec. 31, 2011
Guarantor Subsidiaries [Member]
Period Beginning [Member]
Dec. 31, 2010
Guarantor Subsidiaries [Member]
Period Beginning [Member]
Dec. 31, 2009
Guarantor Subsidiaries [Member]
Period Beginning [Member]
Dec. 31, 2012
Guarantor Subsidiaries [Member]
Period End [Member]
Dec. 31, 2011
Guarantor Subsidiaries [Member]
Period End [Member]
Dec. 31, 2010
Guarantor Subsidiaries [Member]
Period End [Member]
Dec. 31, 2012
Guarantor Subsidiaries [Member]
Dec. 31, 2011
Guarantor Subsidiaries [Member]
Dec. 31, 2010
Guarantor Subsidiaries [Member]
Dec. 31, 2011
Non-Guarantor Subsidiaries [Member]
Period Beginning [Member]
Dec. 31, 2010
Non-Guarantor Subsidiaries [Member]
Period Beginning [Member]
Dec. 31, 2009
Non-Guarantor Subsidiaries [Member]
Period Beginning [Member]
Dec. 31, 2012
Non-Guarantor Subsidiaries [Member]
Period End [Member]
Dec. 31, 2011
Non-Guarantor Subsidiaries [Member]
Period End [Member]
Dec. 31, 2010
Non-Guarantor Subsidiaries [Member]
Period End [Member]
Dec. 31, 2012
Non-Guarantor Subsidiaries [Member]
Dec. 31, 2011
Non-Guarantor Subsidiaries [Member]
Dec. 31, 2010
Non-Guarantor Subsidiaries [Member]
Dec. 31, 2012
Eliminations [Member]
Dec. 31, 2011
Eliminations [Member]
Dec. 31, 2010
Eliminations [Member]
Dec. 31, 2011
Consolidated [Member]
Period Beginning [Member]
Dec. 31, 2010
Consolidated [Member]
Period Beginning [Member]
Dec. 31, 2009
Consolidated [Member]
Period Beginning [Member]
Dec. 31, 2012
Consolidated [Member]
Period End [Member]
Dec. 31, 2011
Consolidated [Member]
Period End [Member]
Dec. 31, 2010
Consolidated [Member]
Period End [Member]
Dec. 31, 2012
Consolidated [Member]
Dec. 31, 2011
Consolidated [Member]
Dec. 31, 2010
Consolidated [Member]
Net income loss $ (126,899,565) $ 2,197,418 $ 690,715 $ (126,899,565) $ 2,197,418 $ 690,715             $ (180,220,349) $ 33,204,304 $ 16,261,802             $ (42,009,913) $ 3,608 $ 1,189,588 $ 222,230,262 $ (33,207,912) $ (17,451,390)             $ (126,899,565) $ 2,197,418 $ 690,715
Adjustment to reconcile net income loss to cash flows from operating activities       1,010,294 (275,513) 5,075,290             76,126,680 19,762,543 18,105,293             71,052,777 921,882 3,206,795                   148,189,751 20,408,912 26,387,378
Changes in assets and liabilities, net of assets and liabilities acquired       71,618,424 24,266,264 27,592,163             (34,473,960) (27,119,787) (25,289,272)             (28,703,463) (222,670) (2,969,463)                   8,441,001 (3,076,193) (666,572)
Net cash provided by (used in) operating activities 29,731,187 19,530,137 26,411,521 (54,270,847) 26,188,169 33,358,168             (138,567,629) 25,847,060 9,077,823             339,401 702,820 1,426,920 222,230,262 (33,207,912) (17,451,390)             29,731,187 19,530,137 26,411,521
Cash flows used in investing activities (6,358,340) (15,560,209) (10,227,715)   218,301 (218,301)             (6,018,939) (15,075,741) (8,630,120)             (339,401) (702,769) (1,379,294)                   (6,358,340) (15,560,209) (10,227,715)
Cash flows provided by (used in) financing activities (3,250,356) (9,802,510) (15,688,476) 54,270,847 (26,406,470) (33,139,867)             164,709,059 (16,603,952) 1                   (222,230,262) 33,207,912 17,451,390             (3,250,356) (9,802,510) (15,688,476)
Net increase decrease in cash and cash equivalents 20,122,491 (5,832,582) 495,330                   20,122,491 (5,832,633) 447,704               51 47,626                   20,122,491 (5,832,582) 495,330
Cash and cash equivalents, beginning of period 12,393,792 18,226,374 17,731,044       12,393,442 18,226,074 17,617,266 32,515,933 12,393,441 18,064,970       350 300 113,778 350 351 161,404             12,393,792 18,226,374 17,731,044 32,516,283 12,393,792 18,226,374      
Cash and cash equivalents, end of period $ 32,516,283 $ 12,393,792 $ 18,226,374       $ 12,393,442 $ 18,226,074 $ 17,617,266 $ 32,515,933 $ 12,393,441 $ 18,064,970       $ 350 $ 300 $ 113,778 $ 350 $ 351 $ 161,404             $ 12,393,792 $ 18,226,374 $ 17,731,044 $ 32,516,283 $ 12,393,792 $ 18,226,374