Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net loss	$ (5,025)	$ (3,511)
Net loss from discontinued operations	40	3
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation and amortization	540	658
Write-down of excess and obsolete inventory	26	218
Stock-based compensation expense	284	366
Loss (gain) on change in fair value of liability-classified warrants	1,682	(6)
Loss (income) from unconsolidated affiliates	(28)	225
Loss (gain) on foreign currency transactions	153	(295)
Loss related to litigation	123
Gain on disposal of property and equipment	(296)
Offering costs allocated to warrants issued	165
Other	74	88
Changes in operating assets and liabilities:
Accounts receivable	(319)	(223)
Inventories	(758)	863
Prepaid expenses and other assets	22	140
Accounts payable	979	(618)
Income taxes	(828)	37
Accrued expenses and other current liabilities	(916)	(278)
Cash used in operating activities of continuing operations	(4,082)	(2,333)
Cash used in operating activities of discontinued operations	(43)	(2)
Net cash used in operating activities	(4,125)	(2,335)
Cash flows from investing activities:
Loan to unconsolidated affiliate		(261)
Investment in (distribution from) unconsolidated affiliate	91	(66)
Purchases of property and equipment	(191)	(106)
Proceeds from sale of property and equipment	322
Net cash provided by (used in) investing activities	222	(433)
Cash flows from financing activities:
Net borrowings (payments) under demand line of credit	1,174	(783)
Proceeds from issuance of common stock and warrants, net of offering costs	6,114
Proceeds from exercise of warrants	1,000
Proceeds from exercise of stock options	275
Other	(18)
Net cash provided by (used in) financing activities	8,545	(783)
Effect of exchange rates on cash	7	(163)
Net change in cash	4,649	(3,714)
Cash at beginning of period	3,909	6,878
Cash at end of period	8,558	3,164
Significant noncash financing activity:
Offering warrants classified as derivative liability	$ 1,531