CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF OPERATIONS
Revenues	$ 1,080	$ 671
Cost of revenues	541	426
Gross profit	539	245
Operating expenses:
Selling, general and administrative	2,633	2,445
Research and development	2,031	1,212
Total operating expenses	4,664	3,657
Gain on the sale of assets		(40)
Loss from continuing operations	(4,125)	(3,372)
Other income (expense):
Interest expense	(555)	(396)
Interest income		10
Foreign currency transaction gains	14
Financing costs associated with convertible notes	(80)	(530)
Change in fair value of warrant liabilities	(1,617)	(808)
Change in fair value of convertible notes	(2,024)	(1,894)
Total other expense	(4,262)	(3,618)
Net loss from continuing operations before income taxes	(8,387)	(6,990)
Benefit for income taxes from continuing operations		492
Net loss from continuing operations, net of income taxes	(8,387)	(6,498)
Discontinued operations:
Income from discontinued operations		53
Gain on sale of discontinued operations, net of provision for income taxes of $492		687
Net income from discontinued operations, net of income taxes		740
Net loss	$ (8,387)	$ (5,758)
Net loss per weighted average share, basic and diluted:
From loss on continuing operations attributable to common stockholders (in dollars per share)	$ (0.27)	$ (0.21)
From income on discontinued operations (in dollars per share)	$ 0.00	$ 0.00
From gain on sale of discontinued operations (in dollars per share)	$ 0.00	$ 0.02
Net loss attributable to common stockholders per weighted average share, basic and diluted (in dollars per share)	$ (0.27)	$ (0.19)
Weighted average shares outstanding:
Basic (in shares)	31,139	30,351
Diluted (in shares)	31,139	30,351