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Employee Retirement Plans (Details) (USD $)
3 Months Ended 12 Months Ended
Jan. 01, 2012
Jul. 01, 2012
Jul. 03, 2011
Jun. 27, 2010
Employee Retirement Plans        
Required age of employees to become eligible to participate under 401(k) Profit Sharing Plan   21    
Number of month of service must be completed to participate under 401(k) Profit Sharing Plan   1 month    
Nonqualified supplemental deferred compensation plan
       
Deferred compensation        
Percentage of employee matching contribution on deferrals made by each participant   50.00%    
Plan liabilities   $ 1,100,000 $ 300,000  
Nonqualified supplemental deferred compensation plan | Minimum
       
Deferred compensation        
Participants deferment percentage of salary and performance and non-performance based bonus   1.00%    
Nonqualified supplemental deferred compensation plan | Maximum
       
Deferred compensation        
Participants deferment percentage of salary and performance and non-performance based bonus   100.00%    
Employer matching contribution per participant amount 2,500      
Employer contributions under nonqualified supplemental deferred compensation plan   $ 100,000 $ 100,000 $ 100,000