Condensed Consolidated Statements of Income (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Mar. 31, 2013		Mar. 31, 2012		Mar. 31, 2013		Mar. 31, 2012
Net sales	$ 38,974		$ 34,717		$ 116,038		$ 109,174
Cost of sales	24,718		23,027		72,353		71,619
Gross profit	14,256		11,690		43,685		37,555
Operating Expenses:
Marketing	2,508		2,553		7,422		7,586
Research and development	3,401		3,133		9,978		10,182
General and administrative	3,421		4,252		12,288		13,038
Total operating expenses	9,330		9,938		29,688		30,806
Operating income	4,926	[1]	1,752	[2]	13,997	[1]	6,749	[2]
Other income (expense):
Interest expense	(44)		(19)		(109)		(152)
Other income	51		175		412		454
Total other income, net	7		156		303		302
Income before income tax benefit	4,933		1,908		14,300		7,051
Income tax benefit	(400)		(90)		2,600		1,350
Net income	$ 5,333		$ 1,998		$ 11,700		$ 5,701
Earnings per share:
Basic (in Dollars per share)	$ 0.43		$ 0.14		$ 0.92		$ 0.40
Diluted (in Dollars per share)	$ 0.41		$ 0.14		$ 0.88		$ 0.39
Weighted average common shares outstanding:
Basic (in Shares)	12,490		14,070		12,730		14,143
Diluted (in Shares)	13,033		14,696		13,302		14,783

[1] Unallocated amounts relate to the gain due to the early settlement of the operating lease located in England.

[2] Unallocated amounts relate to the lease expense incurred on the Company's operating lease located in England.