Note 11 - Income Taxes (Details) - (Provision) Benefit For Income Taxes (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current (provision) benefit for income taxes:
Federal	$ (28,942)us-gaap_CurrentFederalTaxExpenseBenefit	$ 11,766us-gaap_CurrentFederalTaxExpenseBenefit	$ (766)us-gaap_CurrentFederalTaxExpenseBenefit
State	(6,159)	(1,880)
	(35,101)us-gaap_CurrentIncomeTaxExpenseBenefit	9,886us-gaap_CurrentIncomeTaxExpenseBenefit	(766)us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred (provision) benefit for income taxes:
Federal	(84,704)	(56,752)	338,500
State	(14,294)	(22,117)	115,500
	(98,998)us-gaap_DeferredIncomeTaxExpenseBenefit	(78,869)us-gaap_DeferredIncomeTaxExpenseBenefit	454,000us-gaap_DeferredIncomeTaxExpenseBenefit
(Provision) benefit for income taxes	$ (134,099)us-gaap_IncomeTaxExpenseBenefit	$ (68,983)us-gaap_IncomeTaxExpenseBenefit	$ 453,234us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.