CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities:
NET INCOME (LOSS)	$ 2,781	$ (937)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Loss from discontinued operations	109	1,514
Depreciation and amortization	3,810	3,766
Stock-based compensation	2,618	2,331
(Gain) loss on disposal/sale of property and equipment	(1)	4
Restructuring costs	156	0
Payment of withholding tax on stock based compensation	(995)	(1,193)
Deferred tax provision	1,593	0
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	1,322	(5,294)
Inventories	2,371	(308)
Prepaid expenses and other assets	703	966
Accounts payable	(6,741)	848
Income taxes payable	(36)	613
Other accrued liabilities	(517)	(23)
Net cash provided by operating activities	7,173	2,287
Investing Activities:
Capital expenditures	(1,930)	(2,636)
Proceeds from disposal of property and equipment	1	0
Purchases of investments	(60,736)	(35,859)
Redemptions/maturities of short-term investments	56,816	54,280
Purchase of assets/businesses, net of cash acquired	0	(17,731)
Cash held in escrow	0	(500)
Net cash used in investing activities	(5,849)	(2,446)
Financing Activities:
Proceeds from issuance of common stock	911	571
Payments for repurchase of common stock	(435)	0
Cash dividends	(1,933)	(1,649)
Net cash used in financing activities	(1,457)	(1,078)
Cash flows from discontinued operations:
Net cash used in operating activities	(17)	(1,136)
Net cash provided by investing activities	1	0
Net cash provided by financing activities	0	0
Net decrease in cash and cash equivalents	(149)	(2,373)
Effect of exchange rate changes on cash	10	16
Cash and cash equivalents, beginning of year	17,559	19,418
Cash and Cash Equivalents, End of Period	$ 17,420	$ 17,061