Condensed Consolidated Statements of Operations (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements of Operations [Abstract]
Net revenues	$ 19,023,000	$ 23,400,000	$ 23,088,000
Cost of revenues	12,690,000	14,563,000	15,643,000
Gross profit	6,333,000	8,837,000	7,445,000
Expenses:
Selling, general and administrative	7,983,000	8,669,000	7,686,000
Research and development	3,729,000	3,003,000	5,013,000
Total operating expenses	11,712,000	11,672,000	12,699,000
Loss from operations	(5,379,000)	(2,835,000)	(5,254,000)
Interest and other income, net	393,000	268,000	61,000
Net loss	$ (4,986,000)	$ (2,567,000)	$ (5,193,000)
Per share data:
Basic and diluted net loss per common share (in dollars per share)	$ (0.3)	$ (0.17)	$ (0.37)
Shares used in computing per share data (in shares)	16,389,008	14,816,163	14,023,240