CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Revenue:
License and other revenue	$ 640	$ 854
Total revenues	640	854
Operating expenses:
Research and development	6,209	4,512
General and administrative	4,295	5,111
Total operating expenses	10,504	9,623
Loss from operations	(9,864)	(8,769)
Interest expense	(298)	(239)
Other income (expense), net	76	(120)
Net loss	(10,086)	(9,128)
Unrealized gain on available-for-sale securities	13	2
Comprehensive loss	(10,073)	(9,126)
Basic and diluted loss per common share:
Net loss	$ (10,086)	$ (9,128)
Shares used in computing basic and diluted loss per common share	86,660	67,641
Basic and diluted loss per common share	$ (0.12)	$ (0.13)

Licensing revenue is 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 (i.e. 'intellectual property'). Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. This element includes (i) licensing revenue recognized in the period under licensing arrangements (as opposed to revenues in connection with a larger collaboration or multiple-deliverable agreement), (ii) revenues recognized from the outright sale of intellectual property, (iii) the recognition of previously deferred revenue, and (iv) any other revenues not separately presented elsewhere in the statements of operations and comprehensive income (loss).

No definition available.