Condensed Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Condensed Statements Of Operations
Sales	$ 4,653	$ 3,321	$ 7,795	$ 6,673
Cost of goods sold	2,364	1,473	4,091	2,996
Gross profit	2,289	1,848	3,704	3,677
Costs and expenses:
Selling, general and administrative	2,601	2,013	4,858	3,999
Research and development	588	556	1,069	1,102
Total costs and expenses	3,189	2,569	5,927	5,101
Operating loss	(900)	(721)	(2,223)	(1,424)
Interest income/ (expense)	(213)		(269)	1
Loss before taxes	(1,113)	(721)	(2,492)	(1,423)
Income tax expense/ (benefit)	6	(9)	11	(3)
Net loss	$ (1,119)	$ (712)	$ (2,503)	$ (1,420)
Net loss per common share - basic (in dollars per share)	$ (0.08)	$ (0.05)	$ (0.17)	$ (0.10)
Net loss per common share - diluted (in dollars per share)	$ (0.08)	$ (0.05)	$ (0.17)	$ (0.10)
Weighted average number of shares used in basic per share calculations (in shares)	14,744	14,548	14,735	14,553
Weighted average number of shares used in diluted per share calculations (in shares)	14,744	14,548	14,735	14,553