Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011
Revenues:
Royalty and license	$ 46,154	$ 28,989	[1]	$ 26,916	[1]
Product sales	105	1,982	[1]	2,583	[1]
Development, services, and other	1,211	1,198	[1]	1,136	[1]
Total revenues	47,470	32,169	[1]	30,635	[1]
Costs and expenses:
Cost of revenues (exclusive of amortization of intangibles shown separately below)	462	1,188	[1]	1,255	[1]
Sales and marketing	9,338	6,775	[1]	7,085	[1]
Research and development	10,883	8,421	[1]	8,386	[1]
General and administrative	23,104	22,464	[1]	15,749	[1]
Amortization of intangibles	79	49	[1]	39	[1]
Total costs and expenses	43,866	38,897	[1]	32,514	[1]
Operating income (loss)	3,604	(6,728)	[1]	(1,879)	[1]
Interest and other income	68	170	[1]	204	[1]
Income (loss) from continuing operations before provision for income taxes	3,672	(6,558)	[1]	(1,675)	[1]
Benefit (provision) for income taxes	36,483	(792)	[1]	(1,816)	[1]
Income (loss) from continuing operations	40,155	(7,350)	[1]	(3,491)	[1]
Discontinued operations (Note 12):
Gain on sales of discontinued operations, net of provision for income taxes of $0, $97 and $39, respectively	0	153	[1]	61	[1]
Net income (loss)	40,155	(7,197)	[1]	(3,430)	[1]
Basic net income (loss) per share:
Continuing operations	$ 1.42	$ (0.27)	[1]	$ (0.12)	[1]
Discontinued operations	$ 0.00	$ 0.01	[1]	$ 0.00	[1]
Total	$ 1.42	$ (0.26)	[1]	$ (0.12)	[1]
Shares used in calculating basic net income (loss) per share	28,190	27,735	[1]	28,564	[1]
Diluted net income (loss) per share:
Continuing operations	$ 1.37	$ (0.27)	[1]	$ (0.12)	[1]
Discontinued operations	$ 0.00	$ 0.01	[1]	$ 0.00	[1]
Total	$ 1.37	$ (0.26)	[1]	$ (0.12)	[1]
Shares used in calculating diluted net income (loss) per share	29,338	27,735	[1]	28,564	[1]
Other comprehensive income (loss), net of tax Unrealized gains (losses) on available-for-sale securities arising during period	3	(9)	[1]	(2)	[1]
Total other comprehensive income (loss)	3	(9)	[1]	(2)	[1]
Total comprehensive income (loss)	$ 40,158	$ (7,206)	[1]	$ (3,432)	[1]

[1] See Note 1 "Significant Accounting Policies - Intangible Assets" of Notes to Consolidated Financial Statements.