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LEASES AND OTHER COMMITMENTS (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 29, 2017
Sep. 30, 2016
Oct. 02, 2015
Operating Leased Assets [Line Items]      
Rental expense $ 7,969 $ 7,011 $ 6,933
Related Parties      
Operating Leased Assets [Line Items]      
Rental expense $ 949 $ 907 $ 873