CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net earnings	$ 4,939	$ 3,682
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	6,457	6,448
Stock-based compensation	1,294	1,275
Loss on disposal of property, plant and equipment	111	4
Impairment of investment	775	0
Gain on sale of investment	0	(119)
Other, net	(275)	886
Deferred income taxes	(1,501)	180
Changes in operating assets and liabilities	(4,002)	9,365
Net Cash Provided by Operating Activities	7,798	21,721
Cash flows from investing activities:
Purchase of property, plant and equipment	(3,374)	(2,196)
Purchase of marketable securities	(19)	(5,128)
Payments for business acquisitions, net of cash acquired	(19,187)	0
Proceeds from sale of property, plant and equipment	36	10
Proceeds from sale of marketable securities	0	433
Cash transferred from restricted cash	0	162
Net Cash Used in Investing Activities	(22,544)	(6,719)
Cash flows from financing activities:
Dividends paid to common shareholders	(2,350)	(2,336)
Repayment of notes payable	(48)	0
Purchase and retirement of Class B common stock	(1,705)	0
Net Cash Used In Financing Activities	(4,103)	(2,336)
Effect of exchange rate changes on cash	133	8
Net (Decrease) Increase in Cash and Cash Equivalents	(18,716)	12,674
Cash and Cash Equivalents - beginning of period	88,241	83,829
Cash and Cash Equivalents - end of period	69,525	96,503
Changes in operating assets and liabilities consist of:
(Increase) decrease in accounts receivable	(3,562)	7,568
(Increase) decrease in inventories	(1,718)	2,924
Increase in prepaid expenses and other current assets	(668)	(2,275)
(Increase) decrease in other assets	(189)	1
Increase (decrease) in accounts payable	288	(2,442)
Increase in accrued expenses	1,174	1,330
Increase (decrease) in accrued restructuring costs	1,159	(123)
(Decrease) Increase in income taxes payable	(486)	2,382
Changes in operating assets and liabilities	(4,002)	9,365
Cash paid during the period for:
Income taxes, net of refunds received	1,234	490
Interest	2	0
Details of acquisitions:
Fair value of identifiable net assets acquired	4,220	0
Goodwill	17,965	0
Fair value of net assets acquired	22,185	0
Fair value of consideration transferred	22,185	0
Less: Cash acquired in acquisition	(2,991)	0
Deferred consideration	(7)	0
Cash paid for acquisitions, net of cash acquired	$ 19,187	$ 0