Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating activities:
Net income	$ 9,172	$ 3,951
Reconciliation of net income to net cash (used in) provided by operating activities:
Depreciation and amortization	4,073	3,121
Provision for doubtful accounts	216	327
Deferred income taxes	(1,259)	(86)
Stock-based compensation expense	322	494
Other, net	320	441
Changes in operating assets and liabilities:
Accounts receivable	(10,057)	(6,850)
Inventories	(2,469)	1,842
Prepaid expenses and other current assets	326	1,316
Accounts payable	(134)	(496)
Accrued expenses and other current liabilities	(2,715)	(3,142)
Income taxes payable	376	(352)
Other, net	(134)	(47)
Net cash (used in) provided by operating activities	(1,963)	519
Investing activities:
Capital expenditures	(1,579)	(3,451)
Acquisition of assets and business, net of cash acquired of $971 in 2011	(4,029)	(350)
Proceeds from sale of assets	105	195
Net cash used in investing activities	(5,503)	(3,606)
Financing activities:
Payments on debt	(69)	(99)
Issuance of common stock	126
Net cash provided by (used in) financing activities	57	(99)
Effect of exchange rate changes on cash	1,094	(1,094)
Decrease in cash and cash equivalents	(6,315)	(4,280)
Cash and cash equivalents at beginning of period	37,170	36,117
Cash and cash equivalents at end of period	30,855	31,837
Supplemental cash flow information:
Cash paid for interest	357	400
Cash paid for income taxes, net of refunds received	1,612	1,577
Non-cash investing and financing activities:
Issuance of notes payable to equity holders related to acquisition of business	$ 5,300