Note 13 - Income Taxes Income Tax Details (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) percentagepoint	Dec. 31, 2014 USD ($)
Operating Loss Carryforwards [Line Items]
Accrued Income Taxes, Current	$ 124,000
Income Taxes Receivable, Current	9,700
Operating Loss Carryforwards	1,100,000
Foreign tax credit carryforward	900
Alternative minimum tax credit carryforward	5,923	$ 2,286
State net operating loss carryforward	46,914	34,851
Valuation Allowance, Amount	$ 36,230	$ 17,874
Percentage of Stock Ownership Needed to Be Included in Calculation of Change in Control Under Section 382 of Internal Revenue Code of 1986	5.00%
Number of Basis Point Increase in Ownership Over Three Year Period Needed By the Entity's Five Percent Shareholders | percentagepoint	50
Number of Years (Rolling) Used for Calculating Percentage Change in Ownership for Change in Control	3 years