CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues:
Licensing and related revenue	$ 28,348	$ 22,372	$ 21,727
Royalties	22,460	26,528	31,950
Total revenues	50,808	48,900	53,677
Cost of revenues	5,000	5,163	3,952
Gross profit	45,808	43,737	49,725
Operating expenses:
Research and development, net	25,828	21,216	20,243
Sales and marketing	9,815	10,092	9,231
General and administrative	8,054	7,670	7,884
Amortization of intangible assets (Note 6)	649
Total operating expenses	44,346	38,978	37,358
Operating income	1,462	4,759	12,367
Financial income, net (Note 12)	975	2,714	3,380
Other loss (Note 1)	(404)
Income before taxes on income	2,033	7,473	15,747
Income taxes (Note 13)	2,852	788	2,062
Net income	$ (819)	$ 6,685	$ 13,685
Basic net income (loss) per share	$ (0.04)	$ 0.30	$ 0.60
Diluted net income (loss) per share	$ (0.04)	$ 0.30	$ 0.59
Weighted average shares used to compute net income (loss) per share
Basic	20,622	22,009	22,798
Diluted	20,622	22,465	23,357