Note 15 - Lines of Credit and Total Debt Obligations (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Debt [Table Text Block]

	December 31,
	2016		2015
	(Dollars in thousands)
$250 Million 5⅝% Senior Notes due February 2020, net	$	246,915	$	246,032
$250 Million 5½% Senior Notes due January 2024, net		248,391		248,209
$350 Million 6% Senior Notes due January 2043, net		346,340		346,283
Total	$	841,646	$	840,524