CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net revenue
Product	$ 543	$ 975	$ 723	$ 1,556
Royalty and other	451	774	1,047	1,525
Total net revenue	994	1,749	1,770	3,081
Cost of net revenue	563	1,022	800	1,599
Gross profit	431	727	970	1,482
Operating expenses
Research and development	5,789	6,432	12,682	13,486
Selling, general and administrative	1,550	1,490	3,164	3,287
Total operating expenses	7,339	7,922	15,846	16,773
Loss from operations	(6,908)	(7,195)	(14,876)	(15,291)
Other income, net	29	55	52	85
Loss before income taxes	(6,879)	(7,140)	(14,824)	(15,206)
Income tax provision	27	21	47	42
Net loss	(6,906)	(7,161)	(14,871)	(15,248)
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on available-for-sale securities	(5)	6	1	(3)
Comprehensive loss	$ (6,911)	$ (7,155)	$ (14,870)	$ (15,251)
Net loss per share
Basic and diluted (in dollars per share)	$ (0.11)	$ (0.14)	$ (0.25)	$ (0.31)
Shares used in computing net loss per share
Basic and diluted (in shares)	64,737	49,511	59,539	49,344

Represents the amount of revenue earned during the period from the leasing or otherwise lending to a third party the entity's rights or title to certain property and revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts.

No definition available.