CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
REVENUE:
Material sales	$ 23,465	$ 34,128	$ 70,084	$ 85,270
Royalty and license fees	5,209	5,224	52,569	43,332
Technology development and support revenue	1,540	67	1,656	132
Total revenue	30,214	39,419	124,309	128,734
OPERATING EXPENSES:
Cost of material sales	6,458	7,246	17,194	54,913
Research and development	10,118	11,434	31,562	32,000
Selling, general and administrative	8,465	7,224	22,728	20,487
Patent costs and amortization of acquired technology and other intangible assets	7,361	4,032	15,515	12,461
Royalty and license expense	815	1,105	3,656	3,563
Total operating expenses	33,217	31,041	90,655	123,424
Operating (loss) income	(3,003)	8,378	33,654	5,310
INTEREST INCOME	573	232	1,565	593
INTEREST EXPENSE	(5)	(7)	(21)	(31)
OTHER (EXPENSE) INCOME	(68)	(16)	(1,982)	342
INCOME (LOSS) BEFORE INCOME TAXES	(2,503)	8,587	33,216	6,214
INCOME TAX BENEFIT (EXPENSE)	1,003	(1,540)	(10,965)	(9,624)
NET INCOME (LOSS)	$ (1,500)	$ 7,047	$ 22,251	$ (3,410)
NET INCOME (LOSS) PER COMMON SHARE:
Basic (in dollars per share)	$ (0.03)	$ 0.15	$ 0.47	$ (0.07)
Diluted (in dollars per share)	$ (0.03)	$ 0.15	$ 0.47	$ (0.07)
WEIGHTED AVERAGE SHARES USED IN COMPUTING NET INCOME (LOSS) PER COMMON SHARE:
Weighted average common shares outstanding - Basic (in shares)	46,947,621	46,542,556	46,889,913	46,241,578
Weighted average common shares outstanding - Diluted (in shares)	46,947,621	46,723,373	47,015,262	46,241,578