Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
REVENUES:
Net sales	$ 83,662	$ 78,555	$ 164,985	$ 151,668
Other	119	122	280	239
TOTAL REVENUE	83,781	78,677	165,265	151,907
COST OF GOODS SOLD	40,020	41,135	78,990	78,338
Gross profit	43,761	37,542	86,275	73,569
OPERATING EXPENSES:
Selling, general and administrative	20,318	24,278	40,492	46,797
Research and development	3,122	4,566	7,430	8,197
Legal Settlement	0	0	7,059	0
Total operating expenses	23,440	28,844	54,981	54,994
Income from operations	20,321	8,698	31,294	18,575
OTHER INCOME	240	207	766	417
Income before income taxes	20,561	8,905	32,060	18,992
PROVISION FOR INCOME TAXES	(6,991)	(3,027)	(8,804)	(6,457)
NET INCOME	$ 13,570	$ 5,878	$ 23,256	$ 12,535
NET INCOME PER SHARE
Basic (in dollars per share)	$ 0.86	$ 0.39	$ 1.48	$ 0.83
Diluted (in dollars per share)	$ 0.83	$ 0.38	$ 1.43	$ 0.81
WEIGHTED AVERAGE NUMBER OF SHARES
Basic (in shares)	15,781	15,242	15,738	15,170
Diluted (in shares)	16,352	15,362	16,302	15,439