Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Income Taxes Details 2
Net operating loss carryforwards	$ 50,476	$ 55,133
Tax credit carryforwards	9,841	8,908
Capitalized R & D costs	3,907	6,386
Depreciation and amortization	2,071	2,457
Share-based compensation	3,078	3,117
Reserves and accruals	628	3,160
Gross deferred tax assets	70,001	79,161
Less valuation allowance	(70,001)	(79,161)
Net deferred tax assets