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Organization and Summary of Significant Accounting Policies (Details 2) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 30, 2012
Jun. 25, 2011
Changes in fair value of Level 3 financial assets    
Beginning balance $ 25,876 $ 28,012
Net unrealized gain/(loss) (522) 1,005
Impairment recovery of redeemed investments 77 59
Redemptions (10,110) (3,200)
Ending balance $ 15,321 $ 25,876