Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
REVENUES:
Net sales	$ 96,712	$ 83,662	$ 186,561	$ 164,985
Other	9	119	15	280
TOTAL REVENUE	96,721	83,781	186,576	165,265
COST OF GOODS SOLD	46,589	40,020	87,211	78,990
GROSS PROFIT	50,132	43,761	99,365	86,275
OPERATING EXPENSES:
Selling, general and administrative	22,491	20,318	44,466	40,492
Research and development	3,338	3,122	6,651	7,430
Restructuring and strategic transaction	1,533	0	1,533	0
Legal settlement	0	0	0	7,059
TOTAL OPERATING EXPENSES	27,362	23,440	52,650	54,981
INCOME FROM OPERATIONS	22,770	20,321	46,715	31,294
BARGAIN PURCHASE GAIN	1,110	0	1,110	0
OTHER INCOME, net	77	240	224	766
INCOME BEFORE INCOME TAXES	23,957	20,561	48,049	32,060
PROVISION FOR INCOME TAXES	(7,351)	(6,991)	(13,283)	(8,804)
NET INCOME	$ 16,606	$ 13,570	$ 34,766	$ 23,256
NET INCOME PER SHARE
Basic (in dollars per share)	$ 1.03	$ 0.86	$ 2.16	$ 1.48
Diluted (in dollars per share)	$ 0.98	$ 0.83	$ 2.05	$ 1.43
WEIGHTED AVERAGE NUMBER OF SHARES
Basic (in shares)	16,091	15,781	16,070	15,738
Diluted (in shares)	17,000	16,352	16,964	16,302