Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,369	$ 679
Adjustments to reconcile net income to net cash used by operating activities
Deferred income taxes	(206)	(953)
Depreciation and amortization	3,100	2,939
Equity in income of nonconsolidated investment	(23)	(87)
Loss on sale of property, plant and equipment	64	30
Deferred gain amortization on sale-leaseback	(342)	(54)
Stock-based compensation	739	389
Excess tax benefit from share-based compensation	(48)	(152)
Change in operating assets and liabilities:
Accounts receivable	6,900	8,207
Inventories	(3,621)	(11,106)
Other current assets	(1,495)	562
Prepaid income tax	1,739	(296)
Other noncurrent assets	33	3
Accounts payable - trade	(6,528)	6,015
Deferred revenue	(1,501)	(5,811)
Accrued payroll and employee benefits	(4,524)	(3,680)
Other current liabilities	222	530
Other liabilities	(281)	(624)
Net Cash Used by Operating Activities	(2,403)	(3,409)
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures on property, plant and equipment	(2,506)	(2,864)
Acquisitions		(8,952)
Proceeds from fixed asset sales	7
Net Cash Used by Investing Activities	(2,499)	(11,816)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends on common stock paid to shareholders	(257)
Treasury stock acquisitions	(224)
Repayments of other long-term debt	(1,361)	(1,340)
Proceeds from exercise of stock options and stock awards	13	33
Excess tax benefit from share-based compensation	48	152
Net Cash Used by Financing Activities	(1,781)	(1,155)
Effect of exchange rate changes on cash and cash equivalents	707	464
Net Decrease in Cash and Cash Equivalents	(5,976)	(15,916)
Cash and Cash Equivalents at Beginning of Period	73,727	74,800
Cash and Cash Equivalents at End of Period	67,751	58,884
Supplemental Disclosure of Cash Flow Information:
Interest Paid	106	176
Income Taxes Paid	$ 546	$ 740