Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating Activities:
Net income (loss)	$ (748)	$ 2,617
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	5,261	3,589
Stock-based compensation	1,392	2,578
(Gain)/loss on disposal/sale of property and equipment	(18)	9
Restructuring costs	485	0
Payment of withholding tax on stock based compensation	(412)	(1,025)
Deferred tax provision	(640)	468
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	8,641	(1,641)
Inventories	(908)	(1,857)
Prepaid expenses and other assets	(619)	1,722
Accounts payable	56	1,007
Income taxes payable	(110)	(51)
Other accrued liabilities	(3,535)	(1,913)
Deferred revenue	(1,044)	(75)
Net cash provided by operating activities	7,801	5,428
Investing Activities:
Capital expenditures	(1,583)	(1,884)
Proceeds from disposal of property and equipment	40	0
Purchases of investments	(20,277)	(54,673)
Redemptions/maturities of short-term investments	38,426	51,232
Purchase of business from Nexgen	(20,500)	0
Net cash used in investing activities	(3,894)	(5,325)
Financing Activities:
Proceeds from issuance of common stock	1,018	839
Tax benefit from stock based compensation	0	486
Payments for repurchase of common stock	(9,693)	(1,652)
Cash dividends	(2,770)	(2,218)
Net cash used in financing activities	(11,445)	(2,545)
Net decrease in cash and cash equivalents	(7,538)	(2,442)
Effect of exchange rate changes on cash	(7)	(3)
Cash and cash equivalents, beginning of year	20,432	21,790
Cash and Cash Equivalents, End of Period	$ 12,887	$ 19,345