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Retirement Plan (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 28, 2012
Jun. 30, 2011
Jun. 24, 2010
Changes in the projected benefit obligation      
Benefit obligation at beginning of year $ 11,221 $ 10,604  
Service cost 243 216 145
Interest cost 600 577 581
Actuarial loss 2,579 478 1,783
Benefits paid (654) (654)  
Projected benefit obligation at end of year $ 13,989 $ 11,221 $ 10,604