Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities:
Net income	$ 314	$ 399
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	3,354	2,401
Stock-based compensation	742	1,847
(Gain)/loss on disposal/sale of property and equipment	(9)	8
Restructuring costs	440	0
Payment of withholding tax on stock based compensation	(400)	(1,022)
Deferred tax provision	132	133
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	7,655	(1,676)
Inventories	(1,342)	(2,371)
Prepaid expenses and other assets	(300)	1,823
Accounts payable	137	54
Income taxes payable	(190)	37
Other accrued liabilities	(2,400)	(1,714)
Deferred revenue	(1,054)	(73)
Net cash provided by (used in) operating activities	7,079	(154)
Investing Activities:
Capital expenditures	(1,297)	(1,230)
Proceeds from disposal of property and equipment	16	0
Purchases of investments	(9,266)	(34,084)
Redemptions/maturities of short-term investments	23,768	30,418
Purchase of assets	(20,500)	0
Net cash used in investing activities	(7,279)	(4,896)
Financing Activities:
Proceeds from issuance of common stock	624	494
Payments for repurchase of common stock	(2,812)	(1,652)
Cash dividends	(1,859)	(1,482)
Net cash used in financing activities	(4,047)	(2,640)
Net decrease in cash and cash equivalents	(4,247)	(7,690)
Effect of exchange rate changes on cash	(1)	23
Cash and cash equivalents, beginning of year	20,432	21,790
Cash and Cash Equivalents, End of Period	$ 16,184	$ 14,123