Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating Activities
Net (loss)	$ (8,284)	$ (3,314)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation	1,359	1,560
Amortization	1,285	1,607
Loss (Gain) on disposal of equipment	59	(26)
Provision for doubtful accounts, net of recoveries	151	(43)
Deferred income taxes	(11)	(834)
Stock-based compensation	1,520	1,320
Changes in operating assets and liabilities:
Accounts receivable	2,764	1,958
Inventories	654	(331)
Prepaid expenses, other current assets and other non-current assets	2,766	313
Accounts payable	(3,083)	896
Accrued liabilities and other non-current liabilities	(1,362)	(4,180)
Net cash (used in) operating activities	(2,182)	(1,074)
Investing Activities
Purchases of property, equipment and patents	(453)	(523)
Proceeds from the sale of equipment	2	26
Net cash (used in) investing activities	(451)	(497)
Financing Activities
Change in restricted cash	(6,020)	0
Payments on short-term borrowings	0	(1,623)
Treasury shares withheld	(172)	(252)
Net cash (used in) financing activities	(6,192)	(1,875)
Effect of exchange rate fluctuations on cash	473	(793)
Net decrease in cash and cash equivalents	(8,352)	(4,239)
Cash and cash equivalents at beginning of period	21,684	18,637
Cash and cash equivalents at end of period	$ 13,332	$ 14,398