Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements Of Operations
Revenue	$ 129	$ 193	$ 343	$ 377
Operating expenses:
Research and development	2,772	3,837	6,122	7,436
Selling, general and administrative	2,748	2,248	4,651	4,807
Restructuring	58	260	286	286
Total operating expenses	5,578	6,345	11,059	12,529
Loss from operations	(5,449)	(6,152)	(10,716)	(12,152)
Other income (expense):
Interest and other expense	0	(544)	0	(1,324)
Change in fair value liability for price adjustable warrants and subscription investment units	1,864	2,595	3,466	(115)
Total other income (expense), net	1,864	2,051	3,466	(1,439)
Net loss	$ (3,585)	$ (4,101)	$ (7,250)	$ (13,591)
Net loss per common share - basic and diluted	$ (0.08)	$ (0.34)	$ (0.19)	$ (1.13)
Shares used in computing net loss per share - basic and diluted	45,395	12,219	38,282	12,027

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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