Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating activities:
Net earnings	$ 19,161	$ 28,662	$ 34,170
Adjustments to reconcile net earnings to net cash provided by operations:
Depreciation	7,144	6,704	6,731
Amortization	2,347	1,755	1,427
Deferred income taxes	(800)	1,981	5,169
Previously unrecognized tax benefits, including interest			(8,599)
Contributions to pension		(4,700)	(10,100)
Gain on legal settlement		(740)
Noncurrent employee benefits	4,704	2,266	3,670
Stock-based compensation expense	1,470	1,365	1,172
Changes in:
Receivables	(616)	(3,777)	1,347
Inventories	42	(14,886)	7,015
Prepaid expenses and other current assets	(850)	55	(209)
Liabilities other than debt	(1,285)	(289)	(5,205)
Total adjustments	12,156	(10,266)	2,418
Net cash provided by operations	31,317	18,396	36,588
Investing activities:
Property, plant and equipment additions	(5,336)	(9,238)	(7,750)
Acquisitions, net of cash acquired	(3,954)	(7,280)
Investment in emerging technology company		(1,500)
Acquisition of intangible assets		(8,028)
Net cash used for investing activities	(9,290)	(26,046)	(7,750)
Financing activities:
Net increase (decrease) in short-term debt	(11,893)	10,457	(7,437)
Repayments of long-term debt		(5,429)	(9,750)
Dividends paid	(9,023)	(7,784)	(6,830)
Proceeds from exercise of stock options	236	362	1,179
Tax benefit on stock options	190	525	1,162
Employee benefit stock purchase		(1,000)
Issuance of treasury stock	493	152	183
Net cash used for financing activities	(19,997)	(2,717)	(21,493)
Effect of foreign exchange rates on cash	(144)	127	(233)
Increase (decrease) in cash	1,886	(10,240)	7,112
Cash - beginning of period	3,089	13,329	6,217
Cash - end of period	4,975	3,089	13,329
Cash paid during the year for:
Income taxes	10,308	10,884	13,238
Interest (including $11 of capitalized interest in 2009)	$ 324	$ 330	$ 861