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CONDENSED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
License fees and royalties	$ 163	$ 5,108	$ 874	$ 6,068
Operating expenses:
Research and development	2,637	4,319	8,510	13,927
General and administrative	4,770	4,666	13,833	14,006
Total operating expenses	7,407	8,985	22,343	27,933
Loss from operations	(7,244)	(3,877)	(21,469)	(21,865)
Interest and other income	363	322	1,041	871
Interest and other expense	(18)	(21)	(59)	(61)
Net loss	$ (6,899)	$ (3,576)	$ (20,487)	$ (21,055)
Basic and diluted net loss per share	$ (0.04)	$ (0.02)	$ (0.13)	$ (0.13)
Shares used in computing basic and diluted net loss per share	159,216,642	159,140,254	159,186,853	159,011,741

X

- Definition

Revenue earned during the period relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. An entity may receive licensing fees for licenses that also generate royalty payments to the entity. Royalty revenue is derived from a percentage or stated amount of sales proceeds or revenue generated by the third party using the entity's property. Examples of property from which royalties may be derived include patents and oil and mineral rights.

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