CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (USD $) In Thousands, except Per Share data	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Net sales	$ 77,596	$ 67,945
Cost of sales	19,209	15,350
Gross margin	58,387	52,595
Operating expenses:
Selling, general and administrative	10,773	7,613
Research and development	6,667	6,619
Total operating expenses	17,440	14,232
Operating income	40,947	38,363
Other income (expense):
Interest income	728	847
Other non-operating expense, net	(1,175)	(257)
Total other income	(447)	590
Earnings before income taxes	40,500	38,953
Income taxes	12,979	12,580
Net earnings	$ 27,521	$ 26,373
Earnings per share:
Basic	$ 0.74	$ 0.71
Diluted	$ 0.74	$ 0.71
Cash dividends per common share:	$ 0.27	$ 0.26
Weighted average common shares outstanding:
Basic	37,095	37,040
Diluted	37,170	37,107