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Income Taxes (Details 3) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Income Taxes Details 3      
Tax (provision) benefit at statutory rate $ (4,761) $ 14,023 $ 6,204
Research and development credits 1,039 1,451 436
Deferred tax assets not benefited 5,769 (14,611) (6,136)
Share-based compensation (2,009) (1,096) (488)
Other (38) 233 (16)
Withholding tax       550
Federal - alternative minimum tax (26)      
Foreign taxes (13)      
Income tax (provision) benefit $ (39)   $ 550