Note 12 - Income Taxes Income Tax (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 1,100,000,000
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	0
Loss on induced conversion and debt extinguishment (Note 10)	55,570,000	$ 0
State and Local NOL Carryforwards [Member]
Operating Loss Carryforwards [Line Items]
Valuation Allowance, Amount	41,000,000
Convertible Debt [Member]
Operating Loss Carryforwards [Line Items]
Loss on induced conversion and debt extinguishment (Note 10)	55,600,000
Loss on induced conversion and debt extinguishment (Note 10)	39,700,000
Convertible Senior Notes Due 2017
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Deduction, Other, Amount	28,600,000
Extinguishment of Debt, Gain (Loss), Income Tax	$ 8,700,000