Note 7 - Interest Expense, Net - Components of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest related to sale of tax benefits	$ 1,849	$ 2,846	$ 3,861	$ 3,704
Interest expense	14,146	15,863	28,321	31,488
Less — amount capitalized	(1,455)	(308)	(2,719)	(768)
Interest Expense	$ 14,540	$ 18,401	$ 29,463	$ 34,424