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Significant Accounting Policies Concentration of Risk (Details)
3 Months Ended 9 Months Ended
Jul. 01, 2012
Jul. 03, 2011
Jul. 01, 2012
Jul. 03, 2011
Sep. 30, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]          
Concentration Risk, Percentage 40.00% 40.00% 44.00% 44.00%  
Entity-Wide Revenue, Major Customer, Percentage 23.00% 25.00% 23.00% 23.00%  
Accounts Receivable, Major Customer, Percentage 14.00%   14.00%   16.00%