Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Accounts receivable, net	$ 70,524	$ 46,765
Inventories	65,160	45,944
Deferred income taxes	17,501	17,501
Income taxes receivable		2,029
Prepaid expenses and other	1,326	1,474
Total current assets	154,511	113,713
Property, plant and equipment:
Land	1,468	1,468
Buildings and improvements	64,509	63,375
Machinery and equipment	341,227	338,071
Construction in progress	5,655	4,628
Total property, plant and equipment	412,859	407,542
Less accumulated depreciation	324,877	319,533
Net property, plant and equipment	87,982	88,009
Other assets:
Pension asset	169,216	153,962
Other, net	1,491	1,533
Total other assets	170,707	155,495
Total assets	413,200	357,217
Current liabilities:
Current maturities of long-term debt	48,334	27,744
Accounts payable	12,287	6,694
Accrued OPEB cost	1,279	1,279
Other accrued liabilities	25,769	22,901
Total current liabilities	87,669	58,618
Noncurrent liabilities:
Long-term debt	959	937
Accrued OPEB cost	45,804	45,247
Deferred income taxes	67,989	58,830
Other accrued liabilities	1,646	1,849
Total noncurrent liabilities	116,398	106,863
Stockholders' equity:
Common stock	121	125
Additional paid-in capital	98,863	100,111
Accumulated other comprehensive loss	(96,133)	(97,307)
Retained earnings	206,282	189,603
Treasury stock		(796)
Total stockholders' equity	209,133	191,736
Total liabilities and stockholders' equity	413,200	357,217
Commitments and contingencies (Note 6)