Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Condensed Consolidated Statements of Operations (Unaudited) [Abstract]
Net revenues	$ 4,775,000	$ 5,860,000	$ 9,634,000	$ 12,857,000
Cost of revenues	3,071,000	3,504,000	5,931,000	7,906,000
Gross profit	1,704,000	2,356,000	3,703,000	4,951,000
Expenses:
Selling, general and administrative	1,991,000	2,333,000	4,307,000	4,273,000
Research and development	1,037,000	774,000	1,960,000	1,499,000
Total operating expenses	3,028,000	3,107,000	6,267,000	5,772,000
Interest and other income, net	46,000	265,000	78,000	267,000
Net loss	$ (1,278,000)	$ (486,000)	$ (2,486,000)	$ (554,000)
Per share data:
Basic and diluted net loss per common share (in dollars per share)	$ (0.08)	$ (0.03)	$ (0.15)	$ (0.04)
Shares used in computing per share data (in shares)	16,378,033	14,048,649	16,370,533	14,035,960