Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Deferred tax assets:
Net operating loss carry-forwards	$ 85,276	$ 73,413
Tax credit carry-forwards	28,882	23,051
Depreciation	0	14,074
Deferred revenue (net)	9,710	8,722
Warrant amortization	3,991	5,489
Inventory write-downs	2,759	2,803
Other allowances and accruals	3,658	2,901
Other	8,714	10,895
Total deferred tax assets	142,990	141,348
Valuation allowance	(142,023)	(140,641)
Total net deferred tax assets	967	707
Deferred Tax Liabilities, Property, Plant and Equipment	388	0
Deferred tax liabilities:
Deferred tax liability on foreign withholdings	(134)	(120)
Total deferred tax liabilities	522	120
Net deferred tax assets	445	587
Recorded as:
Net current deferred tax assets	386	644
Net non-current deferred tax assets	294	178
Net current deferred tax liabilities	$ (235)	$ (235)