CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
REVENUE:
Material sales	$ 24,324	$ 35,926	$ 51,142	$ 71,252
Royalty and license fees	33,733	28,064	38,108	29,843
Technology development and support revenue	35	137	65	870
Total revenue	58,092	64,127	89,315	101,965
OPERATING EXPENSES:
Cost of material sales	39,086	11,951	47,667	21,848
Research and development	10,647	10,544	20,566	20,700
Selling, general and administrative	6,705	6,545	12,905	12,975
Patent costs and amortization of acquired technology	4,462	4,748	8,429	8,721
Royalty and license expense	1,673	1,501	2,458	2,257
Total operating expenses	62,573	35,289	92,025	66,501
Operating (loss) income	(4,481)	28,838	(2,710)	35,464
INTEREST INCOME	188	193	361	411
INTEREST EXPENSE	(12)	(21)	(24)	(37)
(LOSS) INCOME BEFORE INCOME TAXES	(4,305)	29,010	(2,373)	35,838
INCOME TAX EXPENSE	(7,466)	(8,588)	(8,084)	(11,395)
NET (LOSS) INCOME	$ (11,771)	$ 20,422	$ (10,457)	$ 24,443
NET (LOSS) INCOME PER COMMON SHARE:
Basic (in dollars per share)	$ (0.25)	$ 0.44	$ (0.23)	$ 0.53
Diluted (in dollars per share)	$ (0.25)	$ 0.44	$ (0.23)	$ 0.52
WEIGHTED AVERAGE SHARES USED IN COMPUTING NET (LOSS) INCOME PER COMMON SHARE:
Weighted average common shares outstanding - Basic (in shares)	46,388,218	46,266,142	45,840,599	46,222,146
Weighted average common shares outstanding - Diluted (in shares)	46,388,218	46,614,726	45,840,599	46,632,982