Debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Summary of long-term debt

Long-term debt in the Consolidated Balance Sheets is summarized as follows:

	December 31,
(Thousands)	2014			2013
Revolving credit agreement	$	10,000		$	15,000
Fixed rate industrial development revenue bonds payable in annual installments through 2021	5,961			6,575
Variable rate industrial development revenue bonds payable in 2016	8,305			8,305
Total outstanding	24,266			29,880
Current portion of long-term debt	(653		)	(613		)
Total	$	23,613		$	29,267

Maturities on long-term debt instruments

Maturities on long-term debt instruments as of December 31, 2014 are as follows:

2015	$	653
2016	9,000
2017	733
2018	10,773
2019	819
Thereafter	2,288
Total	$	24,266

Summary of short-term lines of credit

The following table summarizes the Company’s short-term lines of credit. Amounts shown as outstanding are included in short-term debt in the Consolidated Balance Sheets.

	December 31, 2014						December 31, 2013
(Thousands)	Total		Outstanding		Available		Total		Outstanding		Available
Domestic	$	322,475	$	—	$	322,475	$	320,510	$	6,291	$	314,219
Foreign	12,334		—		12,334		13,320		—		13,320
Precious metal	—		—		—		28,662		28,662		—
Total	$	334,809	$	—	$	334,809	$	362,492	$	34,953	$	327,539