CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues:
Royalty and license	$ 13,448	$ 16,012
Development, services, and other	175	275
Total revenues	13,623	16,287
Costs and expenses:
Cost of revenues (exclusive of amortization of intangibles shown separately below)	23	115
Sales and marketing	3,803	4,210
Research and development	4,312	3,727
General and administrative	10,090	8,293
Amortization of intangibles	3	12
Total costs and expenses	18,231	16,357
Operating loss	(4,608)	(70)
Interest and other income (expense)	212	(25)
Loss before benefit for income taxes	(4,396)	(95)
Benefit for income taxes	1,701	36
Net loss	$ (2,695)	$ (59)
Basic and diluted net loss per share (in dollars per share)	$ (0.09)	$ 0.00
Shares used in calculating basic and diluted net loss per share (in shares)	28,493	27,818
Other comprehensive income
Change in unrealized gains on short-term investments	$ 32	$ 1
Total other comprehensive income	32	1
Total comprehensive loss	$ (2,663)	$ (58)