Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating Activities
Net (loss) income	$ (1,806)	$ 1,215
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	944	1,105
Amortization	390	422
Allowance for doubtful accounts	85	152
Deferred income taxes	(141)	613
Stock-based compensation	1,225	665
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	2,584	(11,084)
Inventories	(856)	(202)
Prepaid expenses, other current assets and other non-current assets	(229)	2,584
Accounts payable	(2,451)	221
Accrued liabilities and other non-current liabilities	(1,656)	3,817
Net cash used in operating activities	(1,911)	(492)
Investing Activities
Purchases of property, equipment and patents	(1,193)	(1,326)
Payment for acquisitions, net of cash acquired	(8,079)	0
Net cash used in investing activities	(9,272)	(1,326)
Financing Activities
Proceeds on short-term borrowings	732	799
Proceeds from exercises of stock options	298	0
Excess tax benefit from exercises of stock options	7	0
Treasury shares withheld	(267)	(351)
Net cash provided by financing activities	770	448
Effect of exchange rate fluctuations on cash	(419)	30
Net decrease in cash and cash equivalents	(10,832)	(1,340)
Cash and cash equivalents at beginning of period	27,738	24,453
Cash and cash equivalents at end of period	$ 16,906	$ 23,113