CONDENSED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended		95 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012
OPERATING EXPENSES
General and administrative	$ 393	$ 797	$ 817	$ 1,962	$ 30,539
Research and development	403	1,376	959	3,458	101,008
Purchased in-process research and development	0	0	0	0	34,311
Other	0	0	0	0	(375)
Total operating expenses	796	2,173	1,776	5,420	165,483
Interest and other income, net	(84)	(4)	(88)	(14)	(13,846)
Loss from continuing operations before taxes	712	2,169	1,688	5,406	151,637
Income tax benefit		0	0	0	(1,355)
Loss from continuing operations	712	2,169	1,688	5,406	150,282
Discontinued operations - net gain on sale of the bone device business, net of taxes of $267	0	0	0	0	(2,202)
NET LOSS	$ 712	$ 2,169	$ 1,688	$ 5,406	$ 148,080
Per Share Information:
Net loss, basic and diluted (in dollars per share)	$ 0.02	$ 0.05	$ 0.04	$ 0.13
Basic and diluted shares outstanding (in shares)	40,878	40,775	40,875	40,775