Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Accounts receivable, net	$ 58,329	$ 58,976
Inventories	97,717	88,567
Deferred income taxes	12,194	12,194
Prepaid expenses and other	2,351	2,033
Total current assets	170,591	161,770
Property, plant and equipment:
Land	1,468	1,468
Buildings and improvements	65,193	64,959
Machinery and equipment	326,587	348,789
Construction in progress	4,879	5,607
Total property, plant and equipment	398,127	420,823
Less accumulated depreciation	305,391	327,820
Net property, plant and equipment	92,736	93,003
Other assets:
Pension asset	91,830	71,719
Other, net	1,394	1,455
Total other assets	93,224	73,174
Total assets	356,551	327,947
Current liabilities:
Current maturities of long-term debt	26,430	33,631
Accounts payable	16,263	14,334
Accrued OPEB cost	1,220	1,220
Income taxes payable to Contran	1,906	3,769
Income taxes payable to tax authorities	601	713
Other accrued liabilities	30,869	29,361
Total current liabilities	77,289	83,028
Noncurrent liabilities:
Long-term debt	1,019	983
Accrued pension cost	21,854	21,664
Accrued OPEB cost	51,148	50,470
Deferred income taxes	26,146	17,783
Other	2,219	1,891
Total noncurrent liabilities	102,386	92,791
Stockholders' equity:
Common stock	121	121
Additional paid-in capital	99,024	99,024
Accumulated other comprehensive loss	(176,912)	(182,093)
Retained earnings	254,643	235,076
Total stockholders' equity	176,876	152,128
Total liabilities and stockholders' equity	356,551	327,947
Commitments and contingencies (Note 5)