Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities
Net (loss)	$ (2,637)	$ (1,654)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation	486	520
Amortization	434	543
Loss (Gain) on disposal of equipment	1	(25)
Allowance for doubtful accounts	(99)	10
Deferred income taxes	(99)	(226)
Stock-based compensation	461	272
Changes in operating assets and liabilities:
Accounts receivable	(3,331)	4,882
Inventories	219	(536)
Prepaid expenses, other current assets and other non-current assets	597	(35)
Accounts payable	(377)	(937)
Accrued liabilities and other non-current liabilities	(1,243)	(1,699)
Net cash (used in) provided by operating activities	(5,588)	1,115
Investing Activities
Purchases of property, equipment and patents	(91)	(276)
Proceeds from the sale of equipment	1	25
Net cash used in investing activities	(90)	(251)
Financing Activities
Change in restricted cash	(7,020)	0
Payments on short-term borrowings	0	(815)
Treasury shares withheld	(53)	(173)
Net cash (used in) financing activities	(7,073)	(988)
Effect of exchange rate fluctuations on cash	450	(203)
Net decrease in cash and cash equivalents	(12,301)	(327)
Cash and cash equivalents at beginning of period	21,684	18,637
Cash and cash equivalents at end of period	$ 9,383	$ 18,310