Note 7 - Interest Expense, Net (Tables)

6 Months Ended

Jun. 30, 2014

Interest Expense Disclosure [Abstract]

Schedule of Other Nonoperating Expense, by Component [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
	2014			2013			2014			2013
	(Dollars in thousands)						(Dollars in thousands)
Interest related to sale of tax benefits	$	3,669		$	3,037		$	6,248		$	5,754
Other interest expense		18,838			16,166			37,229			32,009
Less — amount capitalized		(435	)		(1,699	)		(887	)		(4,396	)
	$	22,072		$	17,504		$	42,590		$	33,367