Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation (Summary of Stock Option Activity) (Details)

v3.8.0.1
Stock-based Compensation (Summary of Stock Option Activity) (Details) - $ / shares
 12 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Oct. 03, 2015
2010 Stock Plan      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding at end of period, Shares 10,000 10,000 50,000
Granted, Shares 0 0 0
Exercised, Shares 0 0 0
Forfeited, Shares 0 0 (40,000)
Outstanding at end of period, Shares 10,000 10,000 10,000
Exercisable at end of year, Shares 10,000 10,000 10,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]      
Outstanding at beginning of year, Weighted Average Exercise Price (usd per share) $ 13.07 $ 13.07 $ 13.47
Granted, Weighted Average Exercise Price (usd per share) 0.00 0.00 0.00
Exercised, Weighted Average Exercise Price (usd per share) 0.00 0.00 0.00
Forfeited, Weighted Average Exercise Price (usd per share) 0.00 0.00 13.56
Outstanding at end of year, Weighted Average Exercise Price (usd per share) 13.07 13.07 13.07
Exercisable at end of year, Weighted Average Exercise Price (usd per share) $ 13.07 $ 13.07 $ 13.07
Option Plan      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding at end of period, Shares 86,000 86,000 502,000
Exercised, Shares (80,000) 0 (350,000)
Forfeited, Shares 0 0 (66,000)
Outstanding at end of period, Shares 6,000 86,000 86,000
Exercisable at end of year, Shares 6,000 86,000 86,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]      
Outstanding at beginning of year, Weighted Average Exercise Price (usd per share) $ 8.30 $ 8.30 $ 12.27
Exercised, Weighted Average Exercise Price (usd per share) 8.30 0.00 13.12
Forfeited, Weighted Average Exercise Price (usd per share) 0.00 0.00 12.94
Outstanding at end of year, Weighted Average Exercise Price (usd per share) 8.30 8.30 8.30
Exercisable at end of year, Weighted Average Exercise Price (usd per share) $ 8.30 $ 8.30 $ 8.30