Consolidated Condensed Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash	$ 5,787	$ 3,089
Receivables	43,195	40,429
Inventories:
Finished goods	12,401	9,800
Work in process	10,282	15,284
Raw materials	25,102	23,232
Total inventories	47,785	48,316
Prepaid expenses and other current assets	2,992	2,381
Deferred income taxes	3,417	3,122
Total current assets	103,176	97,337
Property, plant and equipment, at cost	143,822	143,954
Less accumulated depreciation	(77,452)	(77,866)
Net property, plant and equipment	66,370	66,088
Intangible assets, at cost less accumulated amortization	34,323	34,170
Other assets	6,439	7,449
Deferred income taxes	1,006	1,658
Goodwill	9,162	9,162
Total assets	220,476	215,864
Current liabilities:
Short-term debt	2,680	12,878
Payables	13,938	11,159
Accrued compensation and employee benefits	6,797	7,143
Warranty and after-sale costs	1,004	889
Income and other taxes	1,498	610
Total current liabilities	25,917	32,679
Other long-term liabilities	946	2,472
Accrued non-pension postretirement benefits	6,029	5,972
Other accrued employee benefits	4,842	6,358
Commitments and contingencies (Note 6)
Shareholders' equity:
Common stock	21,289	21,259
Capital in excess of par value	38,866	37,582
Reinvested earnings	167,482	156,101
Accumulated other comprehensive loss	(11,727)	(13,137)
Less: Employee benefit stock	(1,485)	(1,536)
Treasury stock, at cost	(31,683)	(31,886)
Total shareholders' equity	182,742	168,383
Total liabilities and shareholders' equity	$ 220,476	$ 215,864