CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
REVENUE:
Material sales	$ 34,128	$ 27,494	$ 85,270	$ 98,746
Royalty and license fees	5,224	5,357	43,332	35,200
Technology development and support revenue	67	41	132	911
Total revenue	39,419	32,892	128,734	134,857
OPERATING EXPENSES:
Cost of material sales	7,246	7,388	54,913	29,236
Research and development	11,434	7,915	32,000	28,639
Selling, general and administrative	7,240	6,625	20,145	19,576
Patent costs and amortization of acquired technology	4,032	4,081	12,461	12,801
Royalty and license expense	1,105	803	3,563	3,060
Total operating expenses	31,057	26,812	123,082	93,312
Operating income	8,362	6,080	5,652	41,545
INTEREST INCOME	232	187	593	598
INTEREST EXPENSE	(7)	(17)	(31)	(55)
INCOME BEFORE INCOME TAXES	8,587	6,250	6,214	42,088
INCOME TAX EXPENSE	(1,540)	(1,966)	(9,624)	(13,360)
NET INCOME (LOSS)	$ 7,047	$ 4,284	$ (3,410)	$ 28,728
NET INCOME (LOSS) PER COMMON SHARE:
Basic (in dollars per share)	$ 0.15	$ 0.09	$ (0.07)	$ 0.62
Diluted (in dollars per share)	$ 0.15	$ 0.09	$ (0.07)	$ 0.61
WEIGHTED AVERAGE SHARES USED IN COMPUTING NET INCOME (LOSS) PER COMMON SHARE:
Weighted average common shares outstanding - Basic (in shares)	46,542,556	46,197,713	46,241,578	46,398,644
Weighted average common shares outstanding - Diluted (in shares)	46,723,373	46,633,763	46,241,578	46,956,428