Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues:
Royalty and license	$ 5,875	$ 5,141	$ 20,110	$ 17,848
Product sales	345	1,217	1,892	6,035
Development contracts and other	275	189	943	848
Total revenues	6,495	6,547	22,945	24,731
Costs and expenses:
Cost of revenues (exclusive of amortization, impairment, and abandonment of intangibles shown separately below)	192	457	913	2,587
Sales and marketing	1,643	1,813	5,402	6,077
Research and development	2,183	2,007	6,525	6,473
General and administrative	3,195	3,008	9,367	11,808
Amortization and impairment or abandonment of intangibles	324	211	1,016	650
Total costs and expenses	7,537	7,496	23,223	27,595
Operating loss	(1,042)	(949)	(278)	(2,864)
Interest and other income	58	70	172	212
Loss from continuing operations before provision for income taxes	(984)	(879)	(106)	(2,652)
Provision for income taxes	(428)	(336)	(1,289)	(1,098)
Loss from continuing operations	(1,412)	(1,215)	(1,395)	(3,750)
Discontinued operations (Note 11) :
Gain on sales of discontinued operations net of provision for income taxes of $0, $18, $39 and $18	0	82	61	143
Net loss	$ (1,412)	$ (1,133)	$ (1,334)	$ (3,607)
Basic and diluted net loss per share
Continuing operations	$ (0.05)	$ (0.04)	$ (0.05)	$ (0.13)
Discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Total	$ (0.05)	$ (0.04)	$ (0.05)	$ (0.13)
Shares used in calculating basic and diluted net loss per share	28,918	28,134	28,595	28,087