Note 1 - General and Basis of Presentation (Details) - Effect of Revision on Line Items in Condensed Consolidated Statement of Cash Flow (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended		12 Months Ended
	Mar. 31, 2013	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Cash flows from operating activities:
Net income (loss)	$ (4,949)	$ 33,676	$ 16,232	$ (212,607)
Deferred income tax provision	3,720	14,235	5,894	(4,736)
Net cash provided by operating activities	18,216	32,226	62,384	89,471
Scenario, Previously Reported [Member]
Cash flows from operating activities:
Net income (loss)	(1,897)			(206,016)
Deferred income tax provision	668			(11,327)
Net cash provided by operating activities	18,216			89,471
Restatement Adjustment [Member]
Cash flows from operating activities:
Net income (loss)	(3,052)			(6,591)
Deferred income tax provision	$ 3,052			$ 6,591