CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
REVENUE:
Material sales	$ 22,315	$ 24,324	$ 46,619	$ 51,142
Royalty and license fees	42,018	33,733	47,360	38,108
Technology development and support revenue	59	35	116	65
Total revenue	64,392	58,092	94,095	89,315
OPERATING EXPENSES:
Cost of material sales	5,684	39,086	10,736	47,667
Research and development	10,969	10,647	21,445	20,566
Selling, general and administrative	7,688	6,983	14,264	13,245
Patent costs and amortization of acquired technology	4,060	4,462	8,154	8,429
Royalty and license expense	1,966	1,673	2,841	2,458
Total operating expenses	30,367	62,851	57,440	92,365
Operating income (loss)	34,025	(4,759)	36,655	(3,050)
INTEREST INCOME	661	188	993	361
INTEREST EXPENSE	(8)	(12)	(15)	(24)
OTHER (EXPENSE) INCOME	(1,829)	278	(1,914)	340
INCOME (LOSS) BEFORE INCOME TAXES	32,849	(4,305)	35,719	(2,373)
INCOME TAX EXPENSE	(11,047)	(7,466)	(11,968)	(8,084)
NET INCOME (LOSS)	$ 21,802	$ (11,771)	$ 23,751	$ (10,457)
NET INCOME (LOSS) PER COMMON SHARE:
Basic (in dollars per share)	$ 0.46	$ (0.25)	$ 0.51	$ (0.23)
Diluted (in dollars per share)	$ 0.46	$ (0.25)	$ 0.51	$ (0.23)
WEIGHTED AVERAGE SHARES USED IN COMPUTING NET INCOME (LOSS) PER COMMON SHARE:
Weighted average common shares outstanding - Basic (in shares)	46,927,543	46,388,218	46,862,199	45,840,599
Weighted average common shares outstanding - Diluted (in shares)	47,041,854	46,388,218	46,985,374	45,840,599