CONDENSED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended		84 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011
OPERATING EXPENSES
General and administrative	$ 797	$ 789	$ 1,962	$ 1,762	$ 28,178
Research and development	1,376	2,160	3,458	4,183	97,113
Purchased in-process research and development	0	0	0	0	34,311
Other	0	0	0	0	(375)
Total operating expenses	2,173	2,949	5,420	5,945	159,227
Interest and other income, net	(4)	(26)	(14)	(71)	(13,741)
Loss from continuing operations before taxes	2,169	2,923	5,406	5,874	145,486
Income tax benefit	0	0	0	0	(1,197)
Loss from continuing operations	2,169	2,923	5,406	5,874	144,289
Discontinued operations - net gain on sale of the bone device business, net of taxes of $267	0	0	0	0	(2,202)
NET LOSS	$ 2,169	$ 2,923	$ (5,406)	$ (5,874)	$ (142,087)
Per Share Information:
Net loss, basic and diluted (in dollars per share)	$ 0.05	$ 0.07	$ 0.13	$ 0.14
Basic and diluted shares outstanding (in shares)	40,775	40,775	40,775	40,775