Consolidated Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash	$ 8,373	$ 6,656
Receivables	53,194	53,967
Inventories:
Finished goods	26,484	25,362
Work in process	11,432	13,047
Raw materials	34,092	33,365
Total inventories	72,008	71,774
Prepaid expenses and other current assets	4,085	4,538
Deferred income taxes	4,286	4,170
Total current assets	141,946	141,105
Property, plant and equipment, at cost	179,781	177,400
Less accumulated depreciation	(97,436)	(95,594)
Net property, plant and equipment	82,345	81,806
Intangible assets, at cost less accumulated amortization	60,243	61,672
Prepaid pension	561	456
Other assets	9,620	8,397
Goodwill	47,712	47,722
Total assets	342,427	341,158
Current liabilities:
Short-term debt	75,923	75,927
Payables	18,435	16,059
Accrued compensation and employee benefits	8,001	11,901
Warranty and after-sale costs	1,546	1,739
Income and other taxes	2,877	1,449
Total current liabilities	106,782	107,075
Other long-term liabilities	2,064	1,735
Deferred income taxes	6,409	6,399
Accrued non-pension postretirement benefits	6,394	6,342
Other accrued employee benefits	4,906	5,276
Commitments and contingencies (Note 6)
Shareholders’ equity:
Common stock	20,527	20,523
Capital in excess of par value	48,807	48,353
Reinvested earnings	190,859	189,365
Accumulated other comprehensive loss	(12,421)	(11,856)
Less: Employee benefit stock	(869)	(922)
Treasury stock, at cost	(31,031)	(31,132)
Total shareholders’ equity	215,872	214,331
Total liabilities and shareholders’ equity	$ 342,427	$ 341,158