Note 11 - Accounts Payable and Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

	December 31,
	2016		2015
	(Dollars in thousands)
Trade payables	$	48,309	$	41,364
Salaries and other payroll costs		17,977		14,671
Customer advances		576		2,533
Accrued interest		3,524		8,252
Income tax payable		8,824		11,353
Property tax payable		1,884		3,609
Scheduling and transmission		964		1,547
Royalty accrual		1,639		1,818
Other		7,953		6,808
Total	$	91,650	$	91,955