CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
NET SALES	$ 90,477	$ 73,172	$ 268,357	$ 215,552
COST OF SALES	49,423	41,925	145,034	123,412
GROSS PROFIT	41,054	31,247	123,323	92,140
OPERATING EXPENSES:
Selling, general, and administrative	25,708	22,480	76,474	61,451
Research and development	5,401	3,865	15,847	10,664
Acquired in-process research and development	3,438	0	3,438	0
Goodwill impairment charge	0	8,344	0	8,344
Total operating expenses	34,547	34,689	95,759	80,459
INCOME (LOSS) FROM OPERATIONS	6,507	(3,442)	27,564	11,681
OTHER INCOME (EXPENSE):
Interest income	36	7	52	27
Interest expense	(19)	(95)	(755)	(145)
Other income - net	159	18	238	94
Other income (expense) - net	176	(70)	(465)	(24)
INCOME BEFORE INCOME TAXES	6,683	(3,512)	27,099	11,657
INCOME TAX EXPENSE (BENEFIT)	2,120	(1,539)	9,025	3,407
NET INCOME (LOSS)	$ 4,563	$ (1,973)	$ 18,074	$ 8,250
EARNINGS (LOSS) PER COMMON SHARE:
Basic (in dollars per share)	$ 0.11	$ (0.06)	$ 0.47	$ 0.23
Diluted (in dollars per share)	$ 0.11	$ (0.06)	$ 0.47	$ 0.23
AVERAGE COMMON SHARES:
Basic (in shares)	41,909	35,293	38,123	35,249
Diluted (in shares)	42,502	35,293	38,832	35,954