Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net loss	$ (6,595)	$ (4,601)
Net loss (income) from discontinued operations	144	(59)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation and amortization	752	904
Write-down of excess and obsolete inventory	(55)	483
Stock-based compensation expense	505	531
Loss on change in fair value of liability-classified warrants	945	151
Loss (income) from unconsolidated affiliates	(38)	373
Loss (gain) on foreign currency transactions	(470)	73
Loss related to litigation	123
Gain on disposal of property and equipment	(296)
Offering costs allocated to warrants issued	165	123
Other	89	113
Changes in operating assets and liabilities:
Accounts receivable	1,041	(2,134)
Inventories	(2,399)	1,494
Prepaid expenses and other assets	227	9
Accounts payable	91	(383)
Income taxes	(1,176)	602
Accrued expenses and other current liabilities	(470)	(320)
Cash used in operating activities of continuing operations	(7,417)	(2,641)
Cash provided by operating activities of discontinued operations	173	349
Net cash used in operating activities	(7,244)	(2,292)
Cash flows from investing activities:
Loan to unconsolidated affiliate		(263)
Investment in (distribution from) unconsolidated affiliate	91	(66)
Purchases of property and equipment	(334)	(135)
Proceeds from sale of property and equipment	315
Net cash provided by (used in) investing activities of continuing operations	72	(464)
Net cash used in investing activities of discontinued operations	(8)	(7)
Net cash provided by (used in) investing activities	64	(471)
Cash flows from financing activities:
Net borrowings (payments) under demand line of credit	679	(1,027)
Proceeds from issuance of common stock and warrants, net of offering costs	6,114	1,716
Proceeds from exercise of warrants	1,000
Proceeds from exercise of stock options	275
Other	(18)
Net cash provided by financing activities	8,050	689
Effect of exchange rates on cash	77	(246)
Net change in cash	947	(2,320)
Cash at beginning of period	3,909	6,878
Cash at end of period	4,856	4,558
Significant noncash financing activity:
Offering warrants classified as derivative liability	$ 1,531	$ 749