CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Revenue	$ 375	$ 292	$ 1,150	$ 809
Operating expense:
Royalty expense	1,029	0	5,264	0
Research and development	463	374	1,272	1,066
Selling, general and administrative expenses	4,985	6,168	16,043	19,119
Total operating expense	6,477	6,542	22,579	20,185
Loss from operations	(6,102)	(6,250)	(21,429)	(19,376)
Gain (loss) on change in value of derivative liability	0	1,817	(117)	2,126
Interest and other income (expense), net	12	(35)	57	25
Loss before taxes	(6,090)	(4,468)	(21,489)	(17,225)
Income tax expense	(7)	0	(9)	(2)
Net loss	$ (6,097)	$ (4,468)	$ (21,498)	$ (17,227)
Basic and diluted loss per share (in dollars per share)	$ (0.12)	$ (0.09)	$ (0.41)	$ (0.33)
Weighted average shares outstanding basic and diluted (in shares)	52,339	51,572	52,174	51,454

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

No definition available.