Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net loss	$ (7,653)	$ (6,595)
Net loss from discontinued operations	67	144
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation and amortization	660	752
Stock-based compensation expense	486	505
Loss (gain) on change in fair value of liability-classified warrants	(269)	945
Gain on foreign currency transactions	(545)	(470)
Loss related to litigation		123
Loss (gain) on disposal of property and equipment	1	(296)
Offering costs allocated to warrants issued	88	165
Other	91	(4)
Changes in operating assets and liabilities:
Accounts receivable	(1,690)	1,041
Inventories	(1,135)	(2,399)
Prepaid expenses and other assets	23	227
Accounts payable, accrued expenses and other current liabilities	1,189	(379)
Income taxes	511	(1,176)
Cash used in operating activities of continuing operations	(8,176)	(7,417)
Cash provided by (used in) operating activities of discontinued operations	(667)	173
Net cash used in operating activities	(8,843)	(7,244)
Cash flows from investing activities:
Purchases of property and equipment	(342)	(334)
Proceeds from sale of property and equipment	8	315
Distribution from unconsolidated affiliate		91
Net cash provided by (used in) investing activities of continuing operations	(334)	72
Net cash used in investing activities of discontinued operations		(8)
Net cash provided by (used in) investing activities	(334)	64
Cash flows from financing activities:
Net borrowings under demand line of credit	722	679
Proceeds from issuance of common stock and warrants, net of offering costs	4,490	6,114
Proceeds from exercise of warrants		1,000
Proceeds from exercise of stock options		275
Other		(18)
Net cash provided by financing activities	5,212	8,050
Effect of exchange rates on cash	(265)	77
Net change in cash	(4,230)	947
Cash at beginning of period	7,220	3,909
Cash at end of period	2,990	4,856
Significant noncash financing activity:
Issuance of warrants classified as derivative liability	$ 845	$ 1,531