CONSOLIDATED STATEMENTS OF INCOME - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenues:      
Licensing and related revenue $ 31,874 $ 32,135 $ 28,348
Royalties 40,779 27,364 22,460
Total revenues 72,653 59,499 50,808
Cost of revenues 6,086 5,424 5,000
Gross profit 66,567 54,075 45,808
Operating expenses:      
Research and development, net 30,838 28,113 25,828
Sales and marketing 11,540 10,168 9,815
General and administrative 8,567 8,184 8,054
Amortization of intangible assets (Note 6) 1,236 1,298 649
Total operating expenses 52,181 47,763 44,346
Operating income 14,386 6,312 1,462
Financial income, net (Note 12) 2,039 1,069 975
Other loss (Note 1)     (404)
Income before taxes on income 16,425 7,381 2,033
Income taxes (Note 13) 3,325 1,114 2,852
Net income (loss) $ 13,100 $ 6,267 $ (819)
Basic net income (loss) per share $ 0.63 $ 0.31 $ (0.04)
Diluted net income (loss) per share $ 0.61 $ 0.30 $ (0.04)
Weighted average shares used to compute net income (loss) per share      
Basic 20,850 20,480 20,622
Diluted 21,565 20,989 20,622