Consolidated Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash	$ 6,758	$ 7,263
Receivables	60,798	50,133
Inventories:
Finished goods	20,699	17,704
Work in process	10,567	12,330
Raw materials	31,930	30,905
Total inventories	63,196	60,939
Prepaid expenses and other current assets	4,045	3,994
Deferred income taxes	4,923	4,834
Total current assets	139,720	127,163
Property, plant and equipment, at cost	169,644	164,138
Less accumulated depreciation	(92,458)	(87,722)
Net property, plant and equipment	77,186	76,416
Intangible assets, at cost less accumulated amortization	54,780	57,317
Prepaid pension	4,744	4,312
Other assets	7,845	6,155
Goodwill	44,695	44,695
Total assets	328,970	316,058
Current liabilities:
Short-term debt	68,693	70,045
Payables	18,147	18,554
Accrued compensation and employee benefits	8,433	7,337
Warranty and after-sale costs	1,433	882
Income and other taxes	4,013	1,223
Total current liabilities	100,719	98,041
Other long-term liabilities	1,345	1,324
Deferred income taxes	9,796	9,790
Accrued non-pension postretirement benefits	5,939	5,934
Other accrued employee benefits	4,301	4,406
Commitments and contingencies (Note 6)
Shareholders’ equity:
Common stock	20,519	20,504
Capital in excess of par value	47,087	45,627
Reinvested earnings	178,600	170,318
Accumulated other comprehensive loss	(7,189)	(7,524)
Less: Employee benefit stock	(995)	(1,075)
Treasury stock, at cost	(31,152)	(31,287)
Total shareholders’ equity	206,870	196,563
Total liabilities and shareholders’ equity	$ 328,970	$ 316,058