Consolidated Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash	$ 6,511	$ 4,975
Receivables	51,670	41,168
Inventories:
Finished goods	12,985	13,476
Work in process	13,639	11,377
Raw materials	34,455	24,583
Total inventories	61,079	49,436
Prepaid expenses and other current assets	3,431	2,266
Deferred income taxes	3,960	3,350
Total current assets	126,651	101,195
Property, plant and equipment, at cost	150,530	144,928
Less accumulated depreciation	(82,339)	(78,826)
Net property, plant and equipment	68,191	66,102
Intangible assets, at cost less accumulated amortization	61,169	33,680
Other assets	6,262	6,259
Deferred income taxes		2,309
Goodwill	35,670	9,365
Total assets	297,943	218,910
Current liabilities:
Short-term debt	77,828	1,790
Payables	18,859	11,365
Accrued compensation and employee benefits	7,768	6,734
Warranty and after-sale costs	1,152	1,593
Income and other taxes	1,498	931
Total current liabilities	107,105	22,413
Other long-term liabilities	5,592	1,078
Deferred income taxes	10,230
Accrued non-pension postretirement benefits	6,104	6,103
Other accrued employee benefits	9,153	10,035
Commitments and contingencies (Note 6)
Shareholders' equity:
Common stock	20,419	21,292
Capital in excess of par value	40,402	39,445
Reinvested earnings	146,183	166,271
Accumulated other comprehensive loss	(14,511)	(14,566)
Less: Employee benefit stock	(1,262)	(1,485)
Treasury stock, at cost	(31,472)	(31,676)
Total shareholders' equity	159,759	179,281
Total liabilities and shareholders' equity	$ 297,943	$ 218,910