Consolidated Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash	$ 4,621	$ 6,554
Receivables	56,059	45,584
Inventories:
Finished goods	17,544	19,872
Work in process	10,094	13,340
Raw materials	26,730	27,785
Total inventories	54,368	60,997
Prepaid expenses and other current assets	3,678	4,343
Deferred income taxes	3,925	3,896
Total current assets	122,651	121,374
Property, plant and equipment, at cost	159,298	152,760
Less accumulated depreciation	(85,894)	(82,276)
Net property, plant and equipment	73,404	70,484
Intangible assets, at cost less accumulated amortization	60,163	58,351
Other assets	6,033	4,314
Goodwill	46,641	35,930
Total assets	308,892	290,453
Current liabilities:
Short-term debt	65,185	66,730
Payables	19,435	15,551
Accrued compensation and employee benefits	7,792	9,821
Warranty and after-sale costs	684	881
Income and other taxes	2,058	1,097
Total current liabilities	95,154	94,080
Other long-term liabilities	2,695	1,086
Deferred income taxes	10,824	8,692
Accrued non-pension postretirement benefits	6,626	6,489
Other accrued employee benefits	7,790	8,859
Commitments and contingencies (Note 6)
Shareholders’ equity:
Common stock	20,480	20,441
Capital in excess of par value	43,988	41,755
Reinvested earnings	166,514	155,694
Accumulated other comprehensive loss	(12,738)	(13,948)
Less: Employee benefit stock	(1,136)	(1,234)
Treasury stock, at cost	(31,305)	(31,461)
Total shareholders’ equity	185,803	171,247
Total liabilities and shareholders’ equity	$ 308,892	$ 290,453