Summary of Significant Accounting Policies (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Property and Equipment
Losses on the sale/disposal of furniture and equipment (in dollars)	$ 51	$ 9	$ 41
Computation of Net Loss Per Common Share
Options outstanding to purchase common stock (in shares)	6,442	6,491	6,065
Common stock equivalents under treasury stock method (in shares)	2,194	1,901	1,853
Machinery and equipment
Property and Equipment
Estimated useful lives	5 years
Computer hardware and software
Property and Equipment
Estimated useful lives	3 years
Furniture and fixtures
Property and Equipment
Estimated useful lives	5 years
Losses on the sale/disposal of furniture and equipment (in dollars)	$ 51	$ 9	$ 41
Leasehold improvements | Maximum
Property and Equipment
Estimated useful lives	7 years