Consolidated Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash	$ 2,714	$ 6,554
Receivables	52,702	45,584
Inventories:
Finished goods	18,750	19,872
Work in process	10,853	13,340
Raw materials	24,011	27,785
Total inventories	53,614	60,997
Prepaid expenses and other current assets	3,500	4,343
Deferred income taxes	3,915	3,896
Total current assets	116,445	121,374
Property, plant and equipment, at cost	157,050	152,760
Less accumulated depreciation	(85,501)	(82,276)
Net property, plant and equipment	71,549	70,484
Intangible assets, at cost less accumulated amortization	61,416	58,351
Other assets	5,712	4,314
Goodwill	46,641	35,930
Total assets	301,763	290,453
Current liabilities:
Short-term debt	66,230	66,730
Payables	20,308	15,551
Accrued compensation and employee benefits	6,525	9,821
Warranty and after-sale costs	695	881
Income and other taxes	2,277	1,097
Total current liabilities	96,035	94,080
Other long-term liabilities	2,690	1,086
Deferred income taxes	10,787	8,692
Accrued non-pension postretirement benefits	6,578	6,489
Other accrued employee benefits	7,813	8,859
Commitments and contingencies (Note 6)
Shareholders’ equity:
Common stock	20,473	20,441
Capital in excess of par value	43,315	41,755
Reinvested earnings	160,036	155,694
Accumulated other comprehensive loss	(13,514)	(13,948)
Less: Employee benefit stock	(1,135)	(1,234)
Treasury stock, at cost	(31,315)	(31,461)
Total shareholders’ equity	177,860	171,247
Total liabilities and shareholders’ equity	$ 301,763	$ 290,453