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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule Of Warranty Activity) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 29, 2017
Sep. 30, 2016
Oct. 02, 2015
Warranty Activity      
Product Warranty Accrual, Balance at beginning of period $ 4,326 $ 4,301 $ 4,078
Expense accruals for warranties issued during the period 7,452 4,699 5,631
Less current period warranty claims paid 5,385 4,674 5,408
Product Warranty Accrual, Balance at end of period $ 6,393 $ 4,326 $ 4,301