Annual report pursuant to Section 13 and 15(d)

Repurchase of Common Stock (Narrative) (Details)

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Repurchase of Common Stock (Narrative) (Details) - USD ($)
12 Months Ended 75 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Oct. 01, 2016
Sep. 29, 2018
Equity [Abstract]        
Shares authorized for repurchase $ 60,000,000     $ 60,000,000
Number of additional shares authorized to be repurchased (shares) $ 10,000,000     $ 10,000,000
Total Number of Shares Purchased 463,974 413,337 140,336 3,357,461
Shares repurchased, value $ 9,000,000 $ 7,800,000 $ 2,100,000 $ 47,700,000