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Note 6 Warranty Rollforward (Details) - USD ($)
$ in Thousands
9 Months Ended
Jun. 27, 2015
Jun. 28, 2014
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning balance — end of prior year $ 13,726 $ 15,136
Charges for the period, net of recoveries 2,459 5,398
Utilization of accrual (5,133) (5,923)
Ending balance — current quarter $ 11,052 $ 14,611