Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Royalty and license	$ 13,944	$ 11,714	$ 45,895	$ 38,473
Development, services, and other	369	337	928	845
Total revenues	14,313	12,051	46,823	39,318
Costs and expenses:
Cost of revenues (exclusive of amortization of intangibles shown separately below)	117	104	347	325
Sales and marketing	3,198	2,238	11,078	7,638
Research and development	3,471	2,718	10,697	8,782
General and administrative	6,241	5,274	21,253	17,745
Amortization of intangibles	3	15	18	55
Total costs and expenses	13,030	10,349	43,393	34,545
Operating income	1,283	1,702	3,430	4,773
Interest and other income (expense)	(84)	(30)	(63)	107
Income before provision for income taxes	1,199	1,672	3,367	4,880
Provision for income taxes	(1,015)	(599)	(1,647)	(1,774)
Net income	$ 184	$ 1,073	$ 1,720	$ 3,106
Basic net income per share (in dollars per share)	$ 0.01	$ 0.04	$ 0.06	$ 0.11
Shares used in calculating basic net income per share	28,190	28,505	28,027	28,420
Diluted net income per share (in dollars per share)	$ 0.01	$ 0.04	$ 0.06	$ 0.11
Shares used in calculating diluted net income per share	29,134	29,351	28,893	29,355
Other comprehensive income
Change in unrealized gains on short-term investments	$ 5	$ 3	$ 9	$ 5
Total other comprehensive income	5	3	9	5
Total comprehensive income	$ 189	$ 1,076	$ 1,729	$ 3,111