Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 7,052	$ 7,740
Adjustments to reconcile net income to net cash (used) provided by operating activities
Deferred income taxes	(859)	(43)
Depreciation and amortization	5,994	4,396
Equity in (income)/losses of nonconsolidated investment	(283)	241
Loss on sale of property, plant and equipment	32	1
Deferred gain amortization on sale-leaseback	(107)	(107)
Share-based compensation	1,255	799
Excess tax benefit from share-based compensation	(331)	(623)
Unrealized loss on derivative mark-to-market		11
Change in operating assets and liabilities:
Accounts receivable	(13,971)	(757)
Inventories	(4,991)	5,736
Other current assets	(256)	55
Prepaid income tax	(1,502)	871
Other noncurrent assets	(398)	72
Accounts payable - trade	10,396	(12,666)
Deferred revenue	(10,283)	13,087
Accrued payroll and employee benefits	(2,697)	(1,029)
Other current liabilities	819	(1,075)
Other liabilities	(235)	3
Net Cash (Used) Provided by Operating Activities	(10,365)	16,712
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sale of property, plant and equipment	8
Capital expenditures on property, plant and equipment	(6,642)	(2,700)
Acquisitions	(8,952)	(5,050)
Capital contributions to equity method investment	(335)	(500)
Net Cash Used by Investing Activities	(15,921)	(8,250)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of long-term debt, term loan		(1,428)
Repayments of other long-term debt	(1,670)	(1,456)
Proceeds from exercise of stock options and stock awards	74	272
Treasury stock acquisitions	(1,569)
Cash dividends on common stock paid to shareholders	(515)
Excess tax benefit from share-based compensation	331	623
Net Cash Used by Financing Activities	(3,349)	(1,989)
Effect of exchange rate changes on cash and cash equivalents	530
Net (Decrease) / Increase in Cash and Cash Equivalents	(29,105)	6,473
Cash and Cash Equivalents at Beginning of Period	74,800	124,845
Cash and Cash Equivalents at End of Period	45,695	131,318
Supplemental Disclosure of Cash Flow Information:
Interest Paid	223	398
Income Taxes Paid	5,158	3,199
Capital Expenditures Funded through Capital Leases		$ 144