Condensed Consolidated Statements of Income (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Net sales	$ 39,062	$ 38,720
Cost of sales	24,647	24,196
Gross profit	14,415	14,524
Operating expenses:
Marketing	2,539	2,596
Research and development	3,334	3,924
General and administrative	4,550	4,415
Total operating expenses	10,423	10,935
Operating income	3,992	3,589
Other income (expense):
Interest expense	(18)	(80)
Other income	223	140
Total other income, net	205	60
Income before income tax expense	4,197	3,649
Income tax expense	1,343	1,120
Net income	$ 2,854	$ 2,529
Basic earnings per share (in Dollars per share)	$ 0.22	$ 0.18
Diluted earnings per share (in Dollars per share)	$ 0.21	$ 0.17
Weighted average common shares outstanding:
Basic (in Shares)	12,999	14,129
Diluted (in Shares)	13,676	14,803